I have problem with worm start

[igi_steel]

Hi
first,apoligize on my bad english
I have problem with worm start.Here Now its about -11°C,and my BMW E30 320i start perfect.Ther is no any problem.When I turn off the engine,and if I try to turn on afther 10 - 15 min.I need long time to turn on the engine.
Please,help

[marti5]

Hi, This chap had the same problem and fixed it with this:

Warm start problem e30 DIY - BMWBoard

[igi_steel]

Thanks
Not a bad idea...So,this valve will noth allowed the fuel back in the tank from fuel line(Its one way valve?).I try to find that in serbia,but...this is serbia...Anyone know is that valve original BMW parts?...Price?
One more question...why now the fuel go back in the tank,and before is not?

[dark_islight]

Originally Posted by igi_steel

Thanks
Not a bad idea...So,this valve will noth allowed the fuel back in the tank from fuel line(Its one way valve?).I try to find that in serbia,but...this is serbia...Anyone know is that valve original BMW parts?...Price?
One more question...why now the fuel go back in the tank,and before is not?

The Check Valve (one way valve) is used to stop the fuel from draining back into the fuel tank because the original one in the fuel pump is old and leaks.
Easier to install external Check Valve than to change fuel pump and costs less.

Yes, it is an original BMW part. Part is $2.25USD from Steve Haygood in the US but should be able to find in Europe at BMW dealer or order from dealer.



it' s a retrofit part for a 1990 bmw 735 IL

P/N is 16149068988 Check Valve for Fuel Pump

[igi_steel]

Thanks on information.Not sure yet where is the problem.Today,chek air inteake manifold,ajust spark plug clearens...I think that the basic problem its idle speed...Actualy,I have couple of problems.I have install on my car LPG(Liquid Petrol Gas),and when the engine its on idle speed,sometimes just die,or start to go up and down from 600 to 1200 rpm.Maibe Idle valve its problem,not sure.

[marti5]

Try cleaning the throttle body, may also be your MAF.

[igi_steel]

Maf?

[marti5]

Originally Posted by igi_steel

Maf?

Mass Air Flow sensor, #1 here:

RealOEM.COM * BMW E30 320i VOLUME AIR FLOW SENSOR

Give it a clean with metholated spirits

[silversled]

nope...none of those are the answer to the problem....

[witeshark]

Originally Posted by silversled

nope...none of those are the answer to the problem....

Drum roll And the real answer is...

[silversled]

LPG - he said it....it's a modified BMW to some goofy fuel...that's why....think about it....a BMW engine home modified to LPG? damn

[silversled]

furthermore...that's not what LPG is an acronym....

[witeshark]

True, LPG is liquefied petroleum gas, not liquid petrol gas...

[igi_steel]

?...I have this car 5 years,and from the begigning I install LPG becouse its half of price of gasoline.I go on the Job every day with my BMW.Its 90 km every working day.In one year its about 30.000km.In five years its 150.000 km.The engine its in great shape,and so far never have a problem with LPG.LPG its god for the engine,gives longer life, and for the nature also.So,my problem its not becouse I install LPG,definitly.

[witeshark]

Okay, so is it starting nicely from warm now?