I suspect that it was just marginally off to begin with, but as you put
some miles on it the distributor cap posts started to corrode a tiny bit
and the rotor tip did also, creating slight resistance and then some
cross firing. With everthing just right with the points setup, you can
tolerate this small corrosion and subsequent increase in resistance. I
have an Allison unit in my daily driver Morris that gave me this problem
early on until I figured it out and rotated the assembly on the breaker
plate so the rotor was in the correct location in relation to the posts
in the cap. That was over 250,000 miles ago. Have never needed to set
the timing since. Try that with points. BTW, the car now has 560,000
miles on it.
Paul
Paul Asgeirsson
Morriservice
9123 N Clarendon Ave
Portland OR 97213-2750
503-978-3998
PAsgeirsson@juno.com
On Tue, 15 Sep 1998 23:50:01 -0400 Frank Clarici <spritenut@exit109.com>
writes:
>Paul A Asgeirsson wrote:
>>
>> Most likely cause from a miss with an aftermarket electronic
>ignition is
>> the rotor is not in the right place when the spark fires. Wants to
>cross
>> fire to another cylinder. As the spark advances with high vacuum or
>> higher speed, it tends to miss more regular. When you put the old
>points
>> set up back it went away as everthing was lined up right inside the
>> distributor. Ala factory setup.
>>
>> Paul
>
>This makes sense but why all of the sudden did it start acting up?
>It was working fine (at least I thought so) since last February.
>It started missing just tonight.
>Maybe spark jump? I don't know but I guess I will stick to points
>only.
>They can be figured out and repaired easily enough.
>
>Thanks
>Frank
>
|