Re: Peculiar starting problem

[Night Shadow <soltwede@ucsub.colorado.edu>]

On Wed, 17 Feb 1999, Mark Madison wrote:

> >Michael,
> > That sounds just like Vapor Lock-- and it's usually caused by a bad Fuel
> >Pressure Accumulator.  What happens when the accumulator goes is that the
> >fuel pressure in the lines drops within a couple minutes of the car being
> >turned off.  Then, the fuel in the line (which is hot by the engine
> >compartment) evaporates and creates vapor lock, a situation where the fuel
> >cannot be pumped effectively through the system.  Once the engine cools
> >down completely, the fuel re-condenses and all is well.

Jason, it's remotely possible that it is caused because of what you say,
but I replaced my fuel accumulator and I still had the problem, thats when
I heard about the fuel pressure regulator (front of the block, 2 lines go
to it) being heat soaked.  The aluminium in the accumulator transfers heat
at a faster rate than the iron in the block, it basically soaks up the
heat from the block....making the pressure regulator think your engine is
way hotter than it is, so it leans the mixture....once you get the engine
started, coolant flows again, cold fuel runs through it, and cools it back
to normal temps, allowing it to work properly.  To fix this, fabricate a
plate to put in between the block and the pressure regulator to act as a
insulator, and boom, design flaw go bye bye.

Eric



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