[DeTomaso] Why is it hard to start cars that have beensitting for months?

[asajay at asajay.com]

okay, so if it smells like fuel, then my bet would be an over-rich  
mixture when cold.  Probably fouling the plugs.  However it could  
still be a bit of oil leaking past the valve stem seals if they are  
the umbrella type.

Over time, more oil ends up dripping down the stem until it's  
exhausted, maybe a few days, maybe several but not a four month  
buildup.  Only so much sticks to the valve stem and once it's all  
leaked past the guide, it's done.

So then you go to start it up and an overy-rich mixture when cold ends  
up masking the problem.

Maybe, maybe not.  Either way the problem is most likely either too  
much fuel or too much oil in the cylinder.

Don't wait four months this time, wait one week and see if the problem  
is the same.


Asa Jay

Quoting Charles McCall <charlesmccall at gmail.com>:

>
> What color was the smoke that filled the garage?
> What did it smell like?  Oil or fuel?
> ***It wasn't oil smell, it was fuel.
>
> Typically this would be caused by a bit of oil leaking into the
> cylinder which makes it harder for the spark to ignite the air/fuel
> mixture.  After a few minutes it all burns off and you're good again.
>
> As I recall, you had the heads serviced a while back. I presume it got
> all new valve stem seals, did they get the stock umbrella seals or
> positive lock type?
> ***Nope, my heads were built, rebuilt, and built once more back in 2001 or
> so. I'd have to look and see what kind of seals he used, but since the smoke
> isn't oil smoke I'd assume that they are in good shape
>
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