[DeTomaso] Slow cranking when hot

[Charles McCall]

One more for the "start with the basics-basics" category. 

Mine had been getting harder and harder to start when hot. Making a long
story short, then it got harder and harder to start when cold. At the last
safety inspection I had to get a push to start the engine :-( 

Bought a new battery and it spins like mad, both hot and cold! Doh! 

Conventional Wisdom also suggests running a heavy duty ground wire from the
starter, since this is a common weak area. Two suggestions from here...

-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf
Of Mike Drew via DeTomaso
Sent: viernes, 14 de julio de 2017 13:13
To: Robert Stroj <npdrs at maui.net>
Cc: detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Slow cranking when hot

Robert,

My Pantera did that when I first bought it and it drove me nuts. It would
spin like crazy when cold, but wouldn't turn over when hot. It took at least
20 minutes to get gas as a result, and when I stood on the brakes stopping
for a red light and the motor flooded and died, I would then block the
intersection for a good while--not fun!

In my case the culprit was a bad battery. I had it tested when I first got
the car and was told it was still good so I spent months searching for
another explanation. I eventually circled back and had it tested again
elsewhere, with a better tester, and this time it tested bad. 

A new battery would have fixed it but I sent the car off for restoration
instead so it had a new everything. 

Your car has a hot motor with forged pistons, no? Those expand at a greater
rate than the iron block so they need to be set up a bit loose when cold. So
your starter has a much easier job then. After they heat up and expand,
piston ring drag on the cylinder walls increases and that might explain the
difference?

Try jump starting when it's hot. If it turns right over, that's a good sign
the battery is toast. 

Mike

Sent from my iPhone

On Jul 13, 2017, at 23:36, Robert Stroj <npdrs at maui.net> wrote:

> Hi, I am just touring trough Dolomites and car is running fantastic!
> One annoying thing I never experienced before is very slow cranking if car
is hot (for example after refueling). It cranks so slow that it barely
starts.....when cold or if left 30 minutes to cool down it cranks great!?
> Any experience with similar behavior, what to look for?
> Already got the hi torque starter and 180 degree headers, so my headers
are pretty far from the starter.
> 
> Thanks, Robert 
> 
> 
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