I also replcaed my ignition ( Allison) with a Pertronix, not for starting but
for just plain bad, rough running and intermittant when hot. Carb was fine.
Allison box was extremely hot. Now runs really great. In fact I also had
problems getting the high revs as well. At the VTR autocross in August it was a
case of redlining all the way round in first. I don't think I could have done
that with the old Allison unit. In fact I got a 3rd place with standard ZS carb
suspension and tyres (OK there was not a big class). Only upgrades were to the
ignition. I also have a Crane PS20 coil and 42 thou gap on regular plugs, new
rotor, leads and distributer cap.
Alan
Original Message:
-----------------
From: RIBJEN@aol.com
Date: Tue, 21 Nov 2000 09:05:39 EST
Subject: Re: Hot Start Problem, 1980 ZS carb
I have another possibility for your not starting when hot.
Do you have the original electronic ignition?
Is it the style that has the module attached to the distributor?
If you answer yes to both of these questions then there is the possibility
that the module gets overheated and then quits working. This is what
happened to me in my '78... after the engine was good & warm (45 min drives)
I would be cruising along and the car would just quit. If I sat on the side
of the road for about 20 minutes - trying the whole time to find the problem
with by carb. The car would have cooled off enough to start. After a couple
of weeks driving like this I finally broke down and took it to a mechanic.
The solution was to put a petronix module in it. this cured the not starting
when hot problem.
Bob Berger
78 Spitfire
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