The TCSA switches vacuum in and out quite suddenly, which rotates the points
plate inside the distributor, which can cause misfiring if either the
points/coil wire or braided ground wire are broken internally.
A very large points gap Insufficient dwell) can also cause back-firing under
load.
PaulH.
----- Original Message -----
From: Don Walton <dhw@pinehurst.net>
To: <mgs@autox.team.net>
Sent: Wednesday, April 19, 2000 2:15 AM
Subject: Re: Maybe carb problem is not?
> I don't know if this could cause backfiring, but I did the same swap on my
> 77B that you did on your car and had strange symptoms like a steady speed
> miss and a jumpy tach. When I put my overdrive in I had to disconnect the
> TCSA switch and my problems went away. The car is driven almost daily and
> has not missed a beat since Christmas. Anybody out there know if this TCSA
> switch could cause backfiring?
>
> Don Walton in NC 77 74 73 B's
>
>
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