[DeTomaso] 1972 pantera slow starting

[doug351c]

Bob,

The best way to troubleshoot this is with 2 people.  One to crank the engine
while its hot and the other to man a voltmeter to look for voltage drops
during cranking.  Start by connecting the voltmeter across the negative
battery post top (not the clamp) and one of the starter's mounting bolts.
This may require some additional wire to make the proper connections for the
voltmeter.  If you measure more than 1 volt drop during cranking, you need
to improve the ground.  Do the same test between the positive battery post
and the starter's positive stud.  These tests will tell you where the weak
link is.  If you find a large voltage drop, the best way to cure it is with
a product called kopr-shield and/or a new starter solenoid if you find a
large drop in the positive leg.  If you don't find over a 1 volt drop in
either of these tests, then you should buy one of the inexpensive gear
reduction starters on eBay (contact me for the part number if needed).

Doug Braun
blue 73L #5505

-----Original Message-----
From: detomaso-bounces at realbig.com
[mailto:detomaso-bounces at realbig.com]On Behalf Of Dave Londry
Sent: Friday, November 19, 2010 8:36 PM
To: LEVITT1946 at aol.com
Cc: detomaso at realbig.com
Subject: Re: [DeTomaso] 1972 pantera slow starting


Because of the headlight thing I think the electrical guys are going to
start talking grounding to you.
Otherwise it should be starter or too much advance.
dave

--
Dave Londry
Embedded Spaces Inc. (ESI)
davel at emspace.com

604 589 9183 phone/fax
6O4 72l 2278 cell
Skype:embeddedspaces


On 11/19/2010 8:20 PM, LEVITT1946 at aol.com wrote:
> Hello Friends ,
> For those of you that last followed my clutch saga /I ended up replacing
> bent linkage and the master cylinder .
>
> Now here is the new problem. From a cold start the car starts fine.  When
I
> drive a few miles and the car is fully warmed up I pull over and shut
down
> the engine. I try to restart the engine and its like this . chug chug chug
> almost like the battery is dead and the car starts.
>
> Is it the timing ?
>
> The starter is fairly new so i do not think its the starter . Is it
> possible to connect the wires incorrectly on the starter to cause the
starter to
> turn slower when hot?
>
> I also noticed that when i start the car at night the headlights will  not
> come up for a few minutes . Wierd?
>
> Maybe this is all related . The alternator was recently upgraded to
100amp.
>
> All help is greatly appreciated
>
> Bob Levitt
> Gumball3000 #56
> Team Pantera Racing #3196
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