[DeTomaso] Slow cranking when hot

[j R]

My car did the same thing! the fix was the starter solenoid. 

    On Friday, July 14, 2017 6:12 AM, Mike Drew via DeTomaso <detomaso at server.detomasolist.com> wrote:
 

 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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-------------- next part --------------
   My car did the same thing! the fix was the starter solenoid.
   On Friday, July 14, 2017 6:12 AM, Mike Drew via DeTomaso
   <detomaso at server.detomasolist.com> wrote:
   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 <[1]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
   >
   >
   > _______________________________________________
   >
   >
   > Detomaso Email List is not managed by POCA
   > Posted emails must not exceed 1.5 Megabytes
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   >
   > To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.
   >
   > Members who post to this list grant license to the list to forward
   any message posted here to all past, current, or future members of the
   list. They also grant the list owner permission to maintain an archive
   or approve the archiving of list messages.
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References

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