Is it possible to start a cold engine on gas: basic recommendations from experts

Although gas-cylinder equipment combines a number of advantages, the main reason for installing it on a car is the economic side of the issue. Gas costs almost twice as much as gasoline, but due to the increased consumption of liquefied fuel, it is almost impossible to achieve savings of 50%. In addition, one should not miss the fact that the engine starts and warms up using gasoline; The more often the car is used in winter, the higher the cost of gasoline. Due to these circumstances, the question often arises among car owners about how to start a cold engine on gas. It’s worth saying right away that it’s quite possible to implement this, and we’ll tell you the main ways. However, frequent such actions will lead to a number of shortcomings, first of all, this will negatively affect the gearbox.

When to start the engine on gas

Often, the need to start the engine on gas arises due to certain circumstances when breakdowns of the standard fuel system occur, for example, when the fuel pump malfunctions or the injectors are clogged. In addition, the tank may run out of gas, so in order to get to the nearest gas station, you will need to start a cold engine on gas.

However, sometimes the reason for this is the need for total savings. Although it takes a little gasoline to warm up the engine, with frequent starts (especially in winter), you may notice a gradual lowering of the fuel level needle in the tank. To minimize fuel costs, drivers often run the engine on gas.

Second generation gas equipment malfunctions

The engine is stopped, but gas continues to flow into it

2nd generation HBO repair options:

It is necessary to repair the gas pressure reducer, which continues to pump pressure even after repair. Possible valve sticking;
Gas solenoid valve needs repair;
problems with the gas switch (the contact has come loose or is not working correctly).

The engine starts intermittently not the first time

filters are clogged or condensate needs to be drained from the gearbox;
the gearbox does not work (the repair kit or the entire device needs to be replaced);
both gas and gasoline enter the cylinders at the same time (problems with setting up the unit).

Gas does not enter the cylinders

the high-speed valve is triggered (needs adjustment or repair) or it gets stuck;
the flow valve is closed;
The solenoid valve needs to be replaced;
filters or gas lines are clogged.

Increased gas consumption or reducer freezing

airing of the cooling system or insufficient antifreeze level. Find the cause of airing and seal it. Find the cause of the antifreeze leak, eliminate it, add antifreeze;
the gearbox is not heated completely;
HBO is not adjusted. Carry out adjustments at different engine speeds;
replace the air filter;
engine problems (low compression). It needs a major overhaul.

Engine sagging when pressing the accelerator sharply

clogging of lines and filters;
The gearbox needs to be replaced.

Effect of gas on the engine

With a correctly installed and configured LPG system, gas fuel only has a positive effect on the engine, increasing its service life. This is due to a number of the following advantages:

the octane number of gas is higher than that of gasoline, which eliminates the possibility of detonation processes that reduce the life of the CPG;
the gas does not wash away the oil film that forms on the cylinder walls, so the level of protection of the piston from friction is much higher;
eliminates the possibility of carbon deposits forming on pistons, exhaust valves and seats;
The engine oil does not dilute, which has a positive effect on its service life.

However, all these advantages can be obtained only if the LPG is correctly configured, and the peculiarities of its operation should also be taken into account. For example, it is not recommended to drive on gas at high speeds, since liquefied fuel burns slower than gasoline, which leads to an increase in its temperature. The consequence of such driving at high speeds is burnout of the exhaust valves. It is also not recommended to start the engine in cold weather on gas, since this reduces the service life of not only gas equipment parts, but also the internal combustion engine. We will pay special attention to this issue.

Why is the function implemented?

To properly prepare the air-fuel mixture, it is necessary that the liquid propane-butane mixture heats up from the walls of the gearbox and enters the injectors in a vapor state.

The 4th generation gas cylinder installation is designed to automatically switch from gas to gasoline. This happens after the evaporator has warmed up to a predetermined temperature from the circulation of coolant, during the initial start-up of the internal combustion engine using standard fuel.

Forced starting is needed specifically for emergencies, if there is a breakdown of the gasoline system.

The number of attempts is limited by the control unit program when setting up the LPG. Of course, you can deactivate the function or change the number of starts yourself with a diagnostic cable and program. But it is important to remember that frequent use of emergency starts can cause rapid failure of the evaporator reducer membrane .

Starting the engine on gas for gas equipment of 2 and 3 generations

We do not recommend using the instructions for starting the engine on gas on an ongoing basis, as this significantly reduces the life of the CPG and the components of gas-cylinder equipment. In this case, the gearbox is most vulnerable. Contact of rubber products with liquefied gas in liquid form helps reduce their service life. Although such components are inexpensive and it is possible to replace them, resorting to frequent engine starts on gas is still harmful for the internal combustion engine, especially if this is done at temperatures below zero.

First, let's look at how to start a gas engine at a temperature above 0 degrees for gas equipment of the 2nd and 3rd generations, where a toggle switch is used to switch. To do this, follow these steps:

Switch the toggle switch to “Gas” mode.
Turn on the ignition and fill the mixer with gas.
Start the engine; As soon as the first signs of its “setting” appear, you need to press the accelerator pedal.

Success depends not only on the correct execution of the above steps, but also on the technical condition of the vehicle. Thus, starting an engine on gas is affected by the level of compression in the cylinders, which should ideally be no lower than 12–14 atmospheres. With this compression, starting the engine on gas will be much easier and faster.

If you resort to frequent engine starts using gas fuel, then you should consider using more modern ignition systems. To do this, a car equipped with a 2nd or 3rd generation gas system (and these are, as a rule, carburetor or injection cars of the budget class) should be equipped with a modern ignition system. This means that it is necessary to install a more powerful ignition coil, modern high-voltage wires and spark plugs. With such equipment, starting the engine on gas will be much easier. However, whether it is worth installing such equipment on a car in order to be able to start the engine from a propane-butane mixture must be decided individually.

Starting if the starter fails

If one of the key elements of starting a car unexpectedly breaks down, the question may arise of how to start a gazelle without a starter. But before asking for help, you should first make sure what the problem is:

Check the contacts and cables connecting it to the battery. The weak are tightened, the visually damaged are replaced.
Rust on the terminals is removed.

And, if these manipulations do not help, resort to “emergency” methods to start the car. And here two universal methods are applicable, which also work when the battery is dead: “from the pusher” and “in tow”:

In the first case, you need to call for help any people (pedestrians, drivers, friends, etc.) who will push the car. The driver will need to be inside the car and squeeze the clutch while holding third speed. When the car accelerates sufficiently, the driver smoothly lowers the clutch, and the vehicle, snorting and growling, eventually starts.
The principle is similar with towing. Only another car acts as an accelerating mechanism.

Not many drivers know how to start a gazelle directly through the starter if the relay has broken down on it. This problem is determined as follows: when you turn the key in the ignition switch, instead of the expected car rumbling, a click is heard, signaling that the Bendix gear for some reason cannot turn the engine crankshaft. To temporarily fix a “breakdown,” a metal object at hand may work (preferably a large screwdriver or open-end wrench; in extreme cases, a pry bar).

Before you start “closing”, set the speed to neutral and tighten the brake to capacity. The key in the ignition switch is turned to the required position. After which the driver must install a screwdriver between terminals A and B on the starter, connecting them to each other and starting his car.

What you need to know about starting a gas engine at subzero temperatures

While it is quite possible to avoid serious problems by starting the engine on gas when the ambient temperature is above 0 degrees, performing such actions in cold weather can result in disappointment. Indeed, in this case, the reducer will simply freeze from the gas, which will lead to the impossibility of its functioning. As a rule, starting the engine in cold weather on gas is quite possible, but the following picture can be seen:

The motor will start and run for a few seconds.
After this, it will stall, and subsequent attempts will be useless.
To successfully start at low temperatures, you will need to first defrost the gearbox. The most rational way in this case is to pour hot water on it.

If you want to save on fuel, then for gas equipment of the 2nd and 3rd generations, start the engine on gas only at an ambient temperature above 10 degrees. When you need to perform an emergency start at low temperatures, preheat the gearbox with hot water, and only then proceed with the process.

how to forcefully start an engine on gas... 4th generation LPG?

I need your advice)) how to forcefully start the car on gas... 4th generation LPG?

Comments 43

Guys, how can I start it with HBO in winter? The gearbox is cold, how to warm it up.

Please tell me what to do, my fuel pump doesn’t work, I started turning on the car like in the video with the button, but yesterday I couldn’t start it like that, I press and hold when I turn on the ignition the button keeps flashing, please tell me

Keep the gas-gasoline switch button pressed and start it

I have a digitronic. To get it on gas, you need to press the ignition button and, while pressed, turn on the ignition and start

hold the throttle button pressed and start the engine

In the summer I tried to start the Dijik, it started without problems, but then after a certain time the buzzer beeped. I tried to turn it off and start it, the buzzer still beeped disgustingly - until I disconnected the terminal from the acc. And everything returned to its place. Is this how it should be too?

an error for very cold gas could appear in the brain if it was started on a cold one

So when it warms up the buzzer should go silent?

it doesn’t work =(the error is already registered in the brain (maybe not the first time, misfires also don’t turn on the CHECK on the dashboard right away, but only if the car has been running like this for a long time)

So it’s better to start a warm car right away on gas.

Clearly, it’s better not to do this at all)

This is a last resort option. There is even a limit in the brain on the number of such attempts to start a plant on gas. usually 10. in the latest lovato firmware it’s like 20

We'll know, is there any detailed instructions about Dijik?

This is a last resort option. There is even a limit in the brain on the number of such attempts to start a plant on gas. usually 10. in the latest lovato firmware it’s like 20

If there is a gearbox temperature sensor, it starts on gas without problems (naturally warmed up). That is, the main condition is engine temperature...

What does the sensor even have to do with it?

Despite the fact that the “emergency” start is only when it’s cold, when it’s warm, this is normal.

I never said anything about “emergency” - I wrote “this is a last resort.”

and in general, if you read it carefully again, you will understand that the point is not that this is “bad”, but that the number of attempts is limited, because this should be done only in extreme cases.

but if there is a gearbox temperature sensor, then you are right - you can configure it so that a warmed-up car starts immediately on gas. But that's a completely different story, as they say.

But you can “emergency” start even without this very sensor...

There are no restrictions on emergency startup on the digic if the installer does not set the number of restrictions

there you can choose either no restrictions or from 1 to 255 starts

in lovato, as I already wrote 10, depending on the firmware. I just don’t remember, this increased number was 5, or in the new 20 attempts.

in lovata yes there is a limitation

the most important point is that there can be restrictions and this method should not be abused. For example, I didn’t like starting on gas (on a warm car), it’s not difficult to wait 15 seconds, but this makes the engine feel much easier

this function is needed in several cases if there is no gasoline or the fuel pump does not work

There are no restrictions on emergency startup on the digic if the installer does not set the number of restrictions

Really? There is a checkbox “allow emergency startup” and the number of them is indicated

yes there is no limit on the number of starts or you can set the number of restrictions

I never said anything about “emergency” - I wrote “this is a last resort.”

but if there is a gearbox temperature sensor, then you are right - you can configure it so that a warmed-up car starts immediately on gas. But that's a completely different story, as they say.

But you can “emergency” start even without this very sensor...

An extreme case is if the fuel pump suddenly goes bad)))

well, as an option, although the pump should/should work in theory, unless someone specifically turned it off

I know on digitronics, to start you need to press the gas switch button and hold it, turn the ignition key to the start position and start it i.e. press the button until the ignition key is turned

It's clear. I'll know

holding the gas button, turn on the ignition and start.

Only at this temperature the coolant will not be very cool. if it is possible to first warm up the coolant or at least the gearbox, then you need to do it

I see...thank you very much. now I know. I needed it for diagnostics... and maybe you can tell me what can happen if the car is full of gas and while driving over 3 or 4 thousand, the gas begins to switch off for gasoline. (but this doesn't always happen)

You need to look at this or the settings - there it is possible to adjust the transition according to engine speed - such as adding gasoline or even gasoline.

Well, maybe the gearbox is small and does not have time to warm up the gas to the required temperature - then the car also switches to gasoline.

but most likely the first option

By the way, the number of attempts to start the plant on gas is about 10-20. Then you need to reset it in your brain. so don't get carried away

ok... you need to connect the computer and look at the settings... just why this doesn’t always happen... I thought the gas-gasoline switch button itself or some kind of valve was made.

you can assume anything. There is nothing to break in the button itself. A dead valve will cause the engine to trip.

connect your computer and see.

Don’t listen to the installers’ excuses that gasoline NEEDS to be added. You will have enough thrust and power if the jets have a normal passage hole.

Fine. thanks for the help

You need to look at this or the settings - there it is possible to adjust the transition according to engine speed - such as adding gasoline or even gasoline.

Well, maybe the gearbox is small and does not have time to warm up the gas to the required temperature - then the car also switches to gasoline.

but most likely the first option

By the way, the number of attempts to start the plant on gas is about 10-20. Then you need to reset it in your brain. so don't get carried away

Is it possible to set an unlimited number of gas start attempts via the computer in the settings?

Lovato has a maximum of 20 attempts. To start on gas, you need to hold the gas/gasoline switch button when you turn on the ignition and start the engine.

I know the question is, is it possible to make unlimited attempts?

Not on Lovato. Only 20 On digitronics it seems possible

Why is the function implemented?

To properly prepare the air-fuel mixture, it is necessary that the liquid propane-butane mixture heats up from the walls of the gearbox and enters the injectors in a vapor state.

Forced starting is needed specifically for emergencies, if there is a breakdown of the gasoline system.

Yamaha diversion 600 reviews

Pros Excellent ergonomics. Acceptable acceleration dynamics. Good brakes. Excellent handling at all speeds. Small price. Cons Noisy clutch operation. The motorcycle was produced only for European and…

What is a gas system for a car anyway? If you understand the answer to this question, this article is not for you. The purpose of this article is to answer the first questions faced by a car owner who wants to gasify his own car. This is a FAQ, FAQ, then, call it what you want...

From the gas filling station, the propane-butane mixture enters the cylinder of your car through a remote filling device (RFU).

Usually this device is installed under the rear bumper, alas, you will like it and is embedded there (bumper), placed next to the gas filler neck, or located in the trunk (if it is made of a separate volume) - it all depends on your car.

The VSU has a return valve that prevents gas from escaping into the atmosphere after refueling. After the VSU, the gas enters a multivalve installed in the cylinder. It is not called a multivalve for nothing.

In a multi-valve of good quality, it is necessary to make at least four devices that ensure safety: 1 - a reversible filling valve that allows gas to pass through when filling exclusively into the cylinder. 4 - a high-speed flow valve that shuts off the gas exit from the cylinder when the speed of its movement sharply increases (for example, when a tube breaks) 3 - valve that prevents the cylinder from filling more than 90%

4 - emergency pressure relief valve (for example, if you fill a full cylinder in winter and put it in a warm box, then the gas, having a very huge degree of expansion when heated, can deform the cylinder) which, in the latter case, can relieve excess pressure and again close.

Gasoline engine UMZ-421647

UMZ-421647 is a four-cylinder bi-fuel (gas-gasoline) injection engine, developing a power of 100 hp. and torque 220.5 Nm. Meets Euro-4 environmental standards. The engine was developed on the basis of the UMZ-4216 motor; during modernization, the valve timing was changed, new components were installed, and the valve mechanism components were redesigned. Due to these changes, not all spare parts for GAZelle with gasoline engines are suitable for new gas-engine vehicles.

A total of three engine modifications are available: one without a compressor and two with SD5 and SD7 compressors. All engines are equipped with a poly-V drive and Delphi components (injectors and “electronic gas pedal”), and also have a bracket for power steering.

The engines are designed to run on natural gas (methane) and gasoline.

Safe operation of gas equipment

The driver of the car should not forget that every day he has to deal with a dangerous substance in a careless manner, which can lead to disastrous consequences.

Proper and safe operation of the installation is as follows:

At least once a month, check the reliability of the cylinder fixation;
If a strong smell of gas appears in the interior, stop using the machine until the leak is eliminated;
If a gas leak is detected, you must immediately close the supply valve and stop using the vehicle;
It is prohibited to independently undertake repair work in the event of a gas leak or use a lighter or matches to localize the leak;
In the event of a collision in an accident, it is necessary to shut off the gas supply to prevent the car from catching fire;
If the machine is to be parked for a long time, it is necessary to close the flow valve and completely exhaust the gas in the system;
When the gas supply system is operating, the flow valve must be opened completely, as this will reduce the likelihood of gas braking when moving.

“Gazelle is difficult to oust”: KAMAZ and Sollers will be friends against GAZ?

The companies intend to jointly develop the light commercial vehicle market. Unused capacity in Yelabuga is in favor of the union

The federal press almost announced a merger of two large domestic automakers. KAMAZ and Sollers plan to at least carry out procurement together, and if the joint venture allows KAMAZ to raise money and bring its light commercial Compass to the market, then perhaps together they will be able to oust the market leader - the GAZ Group. Experts do not assign a large share of the LCV market to the alliance, but they agree that the Compass project could become the driver of the alliance.

The desire to create an alliance between KAMAZ and Sollers has already been announced at the government level - Deputy Prime Minister Yuri Borisov (right) responsible for the industry and Minister of Industry Denis Manturov (center) Photo: kremlin.ru

KAMAZ AND SOLLERS WILL BECOME PARTNERS

The planned alliance between KAMAZ and Sollers was announced by the federal press, citing its own sources, which allow not only the creation of joint ventures, but also a merger of companies. The main vector of application of forces is the new line of light commercial vehicles (LCV): KAMAZ has been thinking about entering this segment for several years, and Sollers is one of the main players in the domestic market. The parties intend to decide on the form of the future alliance during this year.

“We are not talking about any merger; for our part, we can officially confirm that the issue of creating an alliance and specific areas of cooperation are indeed being discussed at this stage,” Sollers PR manager Alina Komarova limited herself to this comment .

The press service of KAMAZ refused to comment to BUSINESS Online on this topic, but, as the Vedomosti newspaper reports, the giants of the Russian automobile industry have already announced their desire to create a union at the government level - to Deputy Prime Minister Yuri Borisov, , and to Minister of Industry and Trade Denis Manturov . According to the publication, the first result of the alliance should be joint investment projects aimed at the production of automotive components, as well as the digitalization of marketing strategies and sales. We are also talking about “new forms of consumption” of commercial vehicles - whether these words hide the desire to introduce light special equipment into other industries or the development of new technologies based on LCVs is not entirely clear. One of the priorities of the union should be joint procurement, which will help reduce the cost of components and technologies by scaling up orders.

The company used the Sollers profit from transactions with a partner to develop the production of Ford Transit, providing the joint venture with a loan of about $30 million Photo: president.tatarstan.ru

In the history of both companies, there have already been attempts at close cooperation with major players in the automotive market, both successful and failed. The Sollers company, we recall, experienced a global transformation last year - the joint venture with the Ford concern has exhausted itself. The American partner withdrew passenger cars produced by the Ford Sollers joint venture from the Russian market, and in June the Sollers board of directors decided to buy out Ford’s share in the joint venture, paying about $75 million for a 51% stake in the American side. Ford has owned a controlling stake since 2015, and the company had plans to buy out the entire joint venture, for which the parties entered into an option to purchase 49% of Sollers for $135 million. As a result, the partners actually exchanged roles - along with the buyout of the controlling stake, Sollers sold its 49% stake for the previously agreed price. The updated joint venture now operates in the LCV niche - the last company on the Russian market in which Ford has maintained a presence. The company used Sollers' profit from transactions with its partner to develop the production of Ford Transit, providing the joint venture with a loan of about $30 million. In addition, in September it became known that the joint venture received a credit line from Sberbank for 1.5 billion rubles, also for the development of production in Alabuga. The Ford Sollers plants in Vsevolozhsk and Naberezhnye Chelny, which assembled passenger cars, closed due to the reformatting of the joint venture.

For KAMAZ, joint ventures with foreign investors, primarily with Daimler, have also been a successful experience, but the auto giant has not yet been able to cooperate with Russian and neighboring companies. The most striking example was the failed joint venture with the Belarusian MAZ - negotiations about it were conducted in parallel with Daimler’s entry into the capital of KAMAZ, and the option with the Russian-Belarusian joint venture was then considered a priority. KAMAZ's parent state corporation Rostec (then Russian Technologies) sent a proposal to unite manufacturers to the Belarusian leadership in February 2011. Rostec offered Belarus a certain stake in KAMAZ in exchange for 100% of MAZ, but President of Belarus Alexander Lukashenko was not satisfied with this option: Old Man wanted parity conditions for Sergei Chemezov , in response, pointed out the unequal value of the assets of the two companies, proposing to evaluate them and exchange shares in proportion . In fact, the Rostec option meant Russian control over the resources of both enterprises, which did not suit Lukashenko. Today, KAMAZ's assets are valued at approximately 48 billion rubles, and Sollers' capitalization is 9.7 billion rubles.

Sergei Kogogin (on the right) spoke about the fact that KAMAZ has been working on a light commercial truck project for several years at the end of last year Photo: “BUSINESS Online”

OMVL Dream XXI emergency start does not work.

Post by Denis13 » Mon Mar 14, 2016 4:25 am

For a short time, the emergency start does not work - I press and hold the gas/petrol switch button, the green LED lights up and after a second both LEDs go out, the car does not start. In detail Something bad happened, it looks like my fuel pump died. I read that there is such a thing - emergency start, I pressed the button for 5-7 seconds and turned the engine, the car started on gas. An hour later I arrived, turned off the car, decided to try to start it in emergency mode, but it didn’t work! The engine was hot all this time. The sequence of actions is as follows - I turn on the ignition - the yellow LED on the button lights up and the green LED blinks - I press and hold the button - the green LED starts to light constantly - and after about a second everything in the button goes OUT. - the car does not start. I tried this 10 times, tried turning the engine when it was green. The LED came on, but did not go out yet, I turned it on after it went out, but it would not start. Those. Once the car started on emergency start and will not start again. How to force start a car on gas?

Added after 2 minutes 45 seconds: I removed the terminal from the battery, the emergency start still does not work.

Re: OMVL Dream XXI emergency start does not work.

Post by Alex Li » Mon Mar 14, 2016 8:03 am

Emergency start sequence for the OMVL Dream system on gas: Press and hold the button Turn the starter (if necessary, press the gas pedal a little) As soon as the engine starts and is running on gas, release the button Warm up the engine at idle speed once it has warmed up to operating temperature (on instruments 50- 60 degrees), start moving

Added after 2 minutes 27 seconds: If it fails to start, then the problem is not related to the fuel pump

Re: OMVL Dream XXI emergency start does not work.

Post by Denis13 » Mon Mar 14, 2016 8:05 am

Re: OMVL Dream XXI emergency start does not work.

Post by Zester » Mon Mar 14, 2016 8:18 am

Re: OMVL Dream XXI emergency start does not work.

Post by Denis13 » Mon Mar 14, 2016 6:53 pm

Zester, I'll try. Alex Li, when I start it, I can’t hear the click of the valve or the operation of the gas injectors, i.e. Gas supply does not turn on when trying to start. Is it possible to set the switching temperature to gas to 0 degrees in the LPG settings so that the engine starts immediately on gas (it’s warm today, it’s +5 outside)? Maybe it’s worth going behind a beech tree and reconfiguring the HBO? It’s generally normal that the button goes out after I press and hold it, and lights up only after turning the ignition on/off.

Added after 9 hours 36 minutes 42 seconds: the minimum temperature for switching to gas is 20 degrees

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Comments 21

I tried to yawn on gas several times (well, I had to, I ran out of gas), it just won’t start, it seizes and stalls...

I don’t know... Maybe there’s something wrong with the HBO...

I tried to yawn on gas several times (well, I had to, I ran out of gas), it just won’t start, it seizes and stalls...

if you run out of gasoline and the gas pump is not turned off by software when running on gas, then it is better not to drive, because the gas pump is cooled by gasoline, if there is at least a little gasoline, then you can drive, the main thing is that the pump draws in gasoline, the pump is in a glass, and it is in it a bypass valve that dumps excess gasoline into this glass and the pump is always in gasoline even if the gasoline level is minimal, but if the car stalls after using up all the gasoline, the computer sees that the engine has stalled and turns off the pump. When emergency starting on gas, the computer does not understand that the car is running on gas and turns on the fuel pump, but it is in an empty glass and quickly fails

You start on gasoline, warm up the engine to 50 degrees and switch to gas.

If you start only on gas, the gearbox can freeze severely and the rubber membrane in it can burst, causing problems in the form of idle incontinence and lack of speed.

You start on gasoline, warm up the engine to 50 degrees and switch to gas.

If you start only on gas, the gearbox can freeze severely and the rubber membrane in it can burst, causing problems in the form of idle incontinence and lack of speed.

Thank you very much! In the future I will do this, turn it off and start on gasoline. Since my taps are in a hard-to-reach place.

What can happen in winter if you start on gas and what is the best way to start?

Nothing can happen, you just won’t start. Although winter is different. Some people even consider +5 for the winter, but we call it -20 in the fall. It's not a matter of the time of year, but the temperature outside. Up to -5, you can easily start on gas in the morning.

You start on gasoline, warm up the engine to 50 degrees and switch to gas.

Why heat it up to 50? Once the antifreeze has switched to +, you can switch to gas and drive.

It will be able to start, and even better than on gasoline. But this will not make the membrane any better.

I started it a couple of times on gas at -20 (there was no gasoline in the tanks). There was nothing wrong. At first it seemed that the idle started to hold up worse, but then it started to slow down. Thomasett's gearboxes have never been known for their smoothness.

The Nexia now has a Turkish Voltran gearbox and there are unpleasant rumors about the quality of its membranes, so I switch to gas only after the engine reaches operating temperature.

Why heat it up to 50? Once the antifreeze has switched to +, you can switch to gas and drive. Single people will suck. In general, the higher the temperature of the gearbox, the better it works.

It will be able to start, and even better than on gasoline. But this will not make the membrane any better.

The Nexia now has a Turkish Voltran gearbox and there are unpleasant rumors about the quality of its membranes, so I switch to gas only after the engine reaches operating temperature.

Single people will suck. In general, the higher the temperature of the gearbox, the better it works. It costs me a lovato. After -10 the ignition doesn't even catch. As soon as the antifreeze switched to plus (on gasoline), I switched to gas and immediately started driving, I never noticed that the idle was playing around. Maybe we're talking about different engines? I have a 402 carburetor.

There is a Perm system SAGA-6. I always start on gas, down to -10 degrees (as per the instructions). at temperatures below -10 I start the pre-heater and when the engine warms up I start on gas. For me, gasoline is not fuel, but a means to get to a gas station if it suddenly gets dry. I've been driving this way for 15 years.

What's the heating pad on?

It must be on the engine, in the cooling system!:mrgreen:

I meant what he feeds the heating pad.

Let's systematize the answers. Carb injector? Gearbox brand? Minimum temperature at which to start? Carb K126, Tomasetto gearbox, started at -20 approximately, as needed. Carb DAAZ-4178, Landi Renzo gearbox, started up to -5, did not risk lower. Injector (LPG ejector), Voltran gearbox, yesterday, out of curiosity, I started it at -3, it started like on gasoline, but immediately turned it off - I don’t want to ruin the gearbox.

On an ejector gas pump with a vapor phase extraction valve on the cylinder

What about the brand of the cartoon?

HBO has been installed, and a new gearbox has recently been installed. They tell me that in winter it is impossible to start on gas. What can happen in winter if you start on gas and what is the best way to start? Like in the evening we switch to gasoline, in the morning we start on gasoline and then switch to gas?

If you really need to start it on gas in the cold, you need to pour boiling water on the gearbox and go ahead.

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If it starts, it starts, that's just the consequences.

It's just scary to read and watch

In any frost, I start it on gas - it catches on, mom, don’t worry, then I switch to gasoline and warm it up a little, maximum until the white zone, and then switch to gas and go.

You can see the evaporation temperature here: https://gbo.com.ua/propan.shtml

It's just scary to read and watch

In any frost, I start it on gas - it catches on, mom, don’t worry, then I switch to gasoline and warm it up a little, maximum until the white zone, and then switch to gas and go.

You can see the evaporation temperature here: https://gbo.com.ua/propan.shtml

+100 I do exactly the same thing, it starts great on gas in any frost, and then on gasoline to warm up.

In any frost, I start it on gas - it catches on, mom, don’t worry, then I switch to gasoline and warm it up a little, maximum until the white zone, and then switch to gas and go.

Try it - you will be pleasantly surprised - there is only a short-term dip in speed.

And I don’t warm up at all. After starting, I turn on the gas (the dips disappear) and drive slowly (it warms up after 5 minutes).

And the situation as in the photo can happen at any temperature due to a lack of coolant flow through the gearbox (or the gearbox is too high, or the coolant level is low). In general, if the gearbox is connected to a small circle, then the warm-up time can be greatly reduced (I remember at -10 and below it was heated for about 1-2 minutes)

If it starts, it starts, that's just the consequences.

By the way, your failure may also be due to over-enrichment (gasoline + gas)

This failure occurs while pumping gasoline into the carb, but at 2000 rpm it takes 0.5 seconds.

Those. Do you think that when switching from gas to gasoline, the carburetor float chamber is empty? It doesn't have to be that way, however.

The chamber is definitely empty, since when switching to gas, all the gasoline must be used up.

Sorry, I didn't know. Is this what the instructions say? Those. Apparently the fuel pump is not supplying gasoline at this time?

By the way, your failure may also be due to over-enrichment (gasoline + gas)

This failure occurs while pumping gasoline into the carb, but at 2000 rpm it takes 0.5 seconds.

But I can’t do that this morning, I checked it specifically, it stalls and even at 3 thousand it still stalls and I have to pump the gas with the starter for another 5 seconds, probably. and even if I switch the car to petrol and drive for a while and turn it off, after a while when I start it I still have to pump the petrol again. why does this happen? I suspect it's the fuel pump diaphragm.

This failure occurs while pumping gasoline into the carb, but at 2000 rpm it takes 0.5 seconds.

But I can’t do that this morning, I checked it specifically, it stalls and even at 3 thousand it still stalls and I have to pump the gas with the starter for another 5 seconds, probably.

How to start a car on gas correctly?

The correct thing to do would be NOT to start it on gas)) and it would be even better to throw out the LPG. everything for the time being, especially with methane. I sat down, turned the key and said hello to my parents, my brother caught fire while driving, the consequences were very serious, he treated his hands and restored the car, he used to sing the praises of the HBO (despite the fact that the car rattled very terribly when it was cold), now he no longer wants such savings, besides no matter what they collect, the resin will dry out the internal combustion engine intended for gasoline, but I won’t write about the loss of power.

As a rule, on a modern car the car switches to gas when the engine reaches a temperature of 30.

Although I haven’t installed HBO yet, after talking with those who have already installed it and are using it, I can divide it into two types.

1st and 2nd generation LPG systems do not have automatic gas/gasoline switching, and therefore you must first start on gasoline, warm up the engine and then switch to gas.

But if the engine is already warmed up (parked for a short time, etc.), then you can safely start the car on gas.

HBOs from the 3rd generation and above already have their own quot;brainsquot; and they switch the fuel supply themselves, so the car starts as before without any additional movements.

I can only share my observation. A colleague has an American car and recently equipped it with gas. He starts the car on gasoline and only then, after warming up, switches to gas. In words, he said that in the summer it starts easily on gas, but in cold weather it’s easier on gasoline. You can listen to his words, since this is already his third car that he uses on gas. According to him, there are automation systems that select the launch mode themselves, but these systems are still relatively expensive.

Gas equipment for cars

How to properly operate a car with LPG?

After the car is switched to gas, the car owner needs to know some rules for its use.
This knowledge will ensure long service life of gas equipment and increase engine life. You need to understand that the engine was initially designed to consume traditional fuel. Its physical properties, octane number and delivery rate to a car engine, differ from gas fuel. Immediately after installation, instructions are provided on the features of operating a gas-powered vehicle. Address where HBO installation is professionally carried out: Voronezh, st. January 9, 87G.