From the sound of it... you need a small capacitor added to
the + coil terminal. I usually raid older 60 & 70s wrecking yard
cars, but it is just a small capacitor with a metal tab that
bolts down (usually under the ignition coil hold down screw),
and has a wire up to the ignition coil.
Radio Shack sold them at one time (haven't look in ages...
no idea if they are still stock them).
Also If you find a whine (as opposed to a buzz), the same
type of capicator is commonly found on the back of the
alternators.
Something along the lines of a 4700ufd 25V electric capacitor
works fine. Note the polarity. They like "popping" with a bang
if installed backwards (sounds like a 22 being shot!) Anything
from a 2200ufd on up should work fine, just make sure they are
rated at least 25V.
Tom
mtyler wrote:
> Are there any tricks for reducing the ignition noise coming in over the
> stock radio? Is there some grounding I've left out, or some inline filter
> that can be added? Thamks in advance.
>
> -Marc T.
>
> ==========================================================================
> Marc Tyler TDROC Sisterdale TX
> 1970 1600 #SPL311-31016
> 1965 L-320 #L320 013642
> http://datsun_marc.tripod.com/cgi-bin/datsun_homepage.html
>
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