Hi Brian,
Probably the po installed stranded copper ignition wires rather than
resistance wires. The tradeoffs are: copper wires will last for many
years, and probably will give you a hotter spark. But -- they will allow
your ignition to not only interfere with your radio, but also to radios in
cars near you as well. Resistance wires will suppress radio interference,
but my experience has been that they will only last 2 or 3 years and then
have to be replaced. I used to buy them from the "big 3" but now I just get
them from Auto Zone and cut them to size myself.
Replacing the wires will solve your problem, and it's not a bad solution.
When doing it, don't forget the coil-to-distributor wire.
Also, make sure the radio case is well grounded.
Sumner Weisman
62 TR3B
Hi Gang,
I am so glad to be asking these questions instead of the " where does my
camshaft go" questions.
I installed a new radio in the TR4. One of those 70's retro ones from
Kenwood. The reception and sound is perfect with engine not running.
Some noises start coming at idle but when the engine is revved to normal
level the radio signal is overcome by ignition noise.
I have changed to negative ground. And the ignition wires are as they were
when I bought the car last year... but they show no sign of wear.... and
they look very period with orange-red rubber boots on the plugs.
I am using the NGK BP6ES plugs which I am guessing are not resistor type
plugs. What do I have to do to get the noise out.
I remember this battle has an original TR4 owner.
Brian Sanborn
62 TR4 CT16260L - Groton, MA
My TR4 Restoration Web Site
http://www.net1plus.com/users/sanborn/Home.html (Big Update on 6/13/99)
E-Mail:
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