[DeTomaso] Happy for 50 miles or so then not

[Will Kooiman]

If it sits overnight and doesn't improve, it isn't heat related.

My car used to die like that, and I thought it was heat related, but it was
the fuel filter.  It was plugged with rust debris from the fuel tank.

But it would go away after about 30 minutes, and the a/f ratio wouldn't have
gone to 10.

Fortunately, there aren't many things it can be.  Can't you borrow a
carburetor, distributor, coil, etc. from someone?  Change one part at a
time, and you'll find it.

If I were still in town, I'd let you borrow all the parts needed.
--
Will

From:  Sean Korb <spkorb at gmail.com>
Reply-To:  <spkorb at gmail.com>
Date:  Monday, October 28, 2013 10:50 PM
To:  "detomaso at poca.com" <detomaso at poca.com>
Subject:  Re: [DeTomaso] Happy for 50 miles or so then not

Do you have electronic ignition?  That happened on my Chevy Sprint,  The
distributor module was going bad and it only took 50 miles at first but my
intervals were shorter and shorter.  I could let it just cool all the way
down and make it home.  It could well be just a bad ground or connector or
even a wire. 


On Mon, Oct 28, 2013 at 10:38 PM, Robert Pink <robpink2012 at gmail.com> wrote:
> Would appreciate some thoughts.
> 
> When I first start my car and drive it runs great for 50 or 60 miles. At 3000
> RPM cruising the air/fuel ratio is high 13 to 14. The vacuum is 18 to 20 and
> the car runs smooth.
> 
> After about 60 miles the air/fuel ratio drops to low 10, the vacuum drops to
> 13 and the car vibrates and runs rough.  It appears to be missing and I
> suspect the ignition system.
> 
> What is confusing is that if I stop for lunch or even after one night the
> problem continues. But if  the car sits for a week or so it goes back to
> running fine . The problem never occurs unless I drive 60 miles or so.
> 
> Thanks for your thoughts
> 
> Rob
> 
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-- 
Sean Korb spkorb at spkorb.org http://www.spkorb.org
'65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera #1382
"The more you drive, the less intelligent you get" --Miller
"Computers are useless.  They can only give you answers." -P. Picasso
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