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long time at cold start,petrol and white smoke.
Posted: Mon Sep 10, 2007 12:01 pm
by ssornerrad
My 320i is turning too long at start when it's cold. Also theres a cloud of white smoke in the morning combined with a string petrol smell.
It's a pity as the car looks refined but really feels like a banger first thing in the morning and when it's been sitting for a while.
Could there be fuel problems? Or should i just accept that a 20 year old M20 engine will be rough sometimes?
Re: long time at cold start,petrol and white smoke.
Posted: Mon Sep 10, 2007 12:22 pm
by siddiqi1
im having this probelm tooo, though once its started its ok, mines a 325 sport......i changed my ICV and AFM with no great resolution....
i havent yet checked the CO reading so may need that adjusting, could be you need to try that?
Also, some suggest recheck and adjustthe tappets?!
Saboor
Re: long time at cold start,petrol and white smoke.
Posted: Tue Sep 25, 2007 6:54 pm
by siddiqi1
Any solution to the above problem?
Re: long time at cold start,petrol and white smoke.
Posted: Tue Sep 25, 2007 8:16 pm
by hongkongfuey
check spark plugs, leads , cap and rotor. clean or replace then retry
Re: long time at cold start,petrol and white smoke.
Posted: Tue Sep 25, 2007 8:36 pm
by Brianmoooore
ssornerrad wrote:My 320i is turning too long at start when it's cold. Also theres a cloud of white smoke in the morning combined with a string petrol smell.
White smoke = water.
Long time to start and petrol smell = possibly plugs not sparking = possibly wet plugs (with water).
My theory is that a small quantity of coolant is entering the combustion chambers when the car is parked up with the cooling system pressurised.
Try slackening off the coolant pressure cap when you stop the car, and see if this improves things. Take great care doing this, as the coolant may boil when the pressure drops.