Re: Hot Start Problem

["Marc Peterson" <mpeters6@rochester.rr.com>]

Doh! Guess I shoulda read more closely.
Sorry.
Marc
----- Original Message -----
From: "Brian Haygood" <Scirious@hotmail.com>
To: "Marc Peterson" <mpeters6@rochester.rr.com>; <scirocco-l@scirocco.org>
Sent: Saturday, September 08, 2001 5:55 PM
Subject: Re: Hot Start Problem


> This is not the hot start relay I was talking about.  I realize there is
an
> overlap in terminology here.  The relay I am talking about basically
allows
> a larger wire to the solenoid via a relay, whose power is controlled by,
not
> routed through, the ignition switch.
>
> Thanks.
> Brian
> ----- Original Message -----
> From: Marc Peterson <mpeters6@rochester.rr.com>
> To: <scirocco-l@scirocco.org>
> Sent: Saturday, September 08, 2001 2:30 PM
> Subject: Re: Hot Start Problem
>
>
> > The hot start relay basically causes the cold start injector to pluse
once
> > every few seconds, dumping extra fuel into the intake.  Should help the
> > engine fire on warm restarts.  It doesn't have anything to do with
> cranking
> > speed.  If you did have an issue with cranking speed on a hot engine, I
> > would assume that the starter was getting heak-soaked, or the starter
> itself
> > was going.
> > Most California FI MK1's have a hot start relay wired in parallel with
the
> > thermo time switch.  This allows the cold start injector to pulse even
> > though the thermo time switch isn't calling for it.
> > Of course, this is all for MK1 8V's.
> >
> > Marc
> >
> > ----- Original Message -----
> > From: "Brian Haygood" <Scirious@hotmail.com>
> > To: "Scirocco-l" <Scirocco-l@scirocco.org>
> > Sent: Saturday, September 08, 2001 1:58 PM
> > Subject: Hot Start Problem
> >
> >
> > > I searched the archives, and I'm wondering whether a hot start relay
> will
> > > help this problem.  It's an '87 16v.  I've followed Bentley's checks
for
> > the
> > > cold start injector and rest position of the air flow plate.  Once
> started
> > > the car always runs well and strongly.
> > >
> > >  My car's ability to start varies with temperature.  On colder days
> (70's
> > or
> > > so) it fires on the first turn or two.  When it's around the mid 80's
it
> > > takes a several turns for a cold engine to fire.  If I drive the car
> > around
> > > a while (up to operating temps) on a warm day, and try to restart it
> > within
> > > about 5 minutes, it will start very reluctantly.  If I let it heat
soak
> > for
> > > 30 minutes or so, it will turn over forever and never fire, though
> > > occaisionally it will sputter on the first crank or two.
> > >
> > >  I have tried push starting it twice and both times it started right
up,
> > > though the cranking speed of the engine seems pretty good, and I can
> crank
> > > it for quite a while (10 seconds) without it slowing down.
> > >
> > >  So it sounds to me like something in their doesn't like being heat
> > soaked.
> > > The archives mention that putting a hot start relay in the ignition
> > > somewhere fixes a heat soak problem, but it sounded to me like this
was
> a
> > > fix for cars that refused to turn over.  Mine turns over pretty well
in
> > any
> > > condition.
> > >
> > >  I don't believe this is a fuel accumulator problem because it relates
> > more
> > > strongly to temperature than to time.  If the car is allowed to cool
it
> > > starts well.  I have not checked the screw on the back of the
> accumulator
> > > for leaks, yet.
> > >
> > >  If anyone can verify that I need a hot start relay, could you also
tell
> > me
> > > where to get the relay, where it wires in, etc.  Also, would this same
> > > problem disappear if I just replaced some wiring and didn't put in a
> > relay?
> > >  Thanks for your help, listers.
> > >
> > >  Sincerely;
> > >  Brian Haygood
> > >
> > >
> > >
> > > --
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> > >
> >
> >
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