Re: Cold engine and smoke
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Re: Cold engine and smoke



When I see white smoke the first thing I think of if it doesn't clear 
up in a few minutes of running is a cracked head or blown head gasket 
usually due to overheating. This is not too common on Deloreans but it 
can happen. Pressure test the cooling system to rule out. With 
pressure on while running the pressure should't drop and the amount of 
smoke comming out shouldn't change. There are also more involved tests 
such as testing for products of combustion in the coolant, compression 
tests on the cylinders, and leakdown testing. Does the cooling system 
always produce bubbles, and are you adding coolant? On the other hand 
are you adding motor oil and do you know what your fuel 
consumption/mileage is. All of these factor into a diagnosis. Put your 
finger into the exhaust pipe, is it dripping wet, black and flakey, or 
just oily? Make sure the motor oil level is not "over full". This 
could cause oil burning.


--- In dmcnews@xxxx, "DMC Joe" <dmcjoe@xxxx> wrote:
> If the smoke has a blue tint and smells oily John is correct, on the 
other
> hand if the smoke is pure white it may be caused by un-burnt fuel in 
the
> combustion chamber. This problem is usually a result of a 
malfunctioning
> cold start valve, fuel distributor, or out of tolerance CO 
adjustment.
> 
> "We're here to help you"
> 







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