Re: TR do you have to have condensor?
*I do get a crackle in my radio that goes up and down with the engine RPM. Would a condenser
on the coil help*
OK, Here is the rub, bub...
If you get radio noise in both the AM and FM band, but not the Tape Player or CD, it's probably ignition noise. (Radio Frequency Interference- RF or RFI for short)
The AM Band in particular will amplify air gap RFI.
RF is created when an electrical charge is emitted to open air, like when the spark energy has to jump from the carboned up rotor nose to the corroded up sparkplug terminals inside the distributor cap, that has no shielding.
Bad plug wires or bad plug wire connections will do the same thing.
Spark plugs gone bad outside of the heads will do it too.
(Correctly working spark plugs DON'T do it because they are encased in a solid iron engine block, and the RF can't penetrate the 'Ground' field)
Try putting a little dab of dielectric grease on the rotor nose, and if that doesn't help, get a good set of plugs, plug wires, cap and rotor, because you have an open in the field somewhere...
If you can hear the noise when the Tape Deck or CD is playing (like the blank spot at the end of an album, or between tracks, it's a power circuit.
When high draw things like the ignition coil switches on and off real fast, it will cause a noise in the electrical system that can be heard through your speakers.
A capacitor will help this condition by buffering the On/Off cycling noise from the electrical devices.
*and if it would where do I go about getting one. I tried some parts stores one time
with no luck. Only thing they had was a condenser looking thing that goes on the alternator and it did nothing.*
Go to the parts store, and ask for the condenser that goes on the ignition coil for say, a '92 Ford Tarus, and see what they come up with...
The Ford dealership, or the junk yard may be a source if you can't find one anywhere else.
Some other tips...
Twist your wiring from the distributor pick-up, and keep it close to the engine block if at all possible.
Keep the Pick-up wiring away from the spark plug wiring and the coil and coil wire.
Keep your spark plug wires away from each other, and any ground. If at all possible, keep them separated by at least 3/4".
Keep the plug wire boots greased with a good dielectric grease ('Tune Up' Grease).
Don't use metal wire looms to separate your spark plug wires.
Use the plastic type with plastic risers.
If it is metal, it's a ground, and too close to the plug wires.
Make sure your distributor cap and plug connections 'Snap' into place.
If you don't get the 'Snap', then you bought too cheap a set of plug wires, or you didn't install them correctly.
Never bend a spark plug wire at 90 degrees or more, and never kink a spark plug wire.
You will break or damage the inner conductor.
Bends should be done at a 3" radius if possible (but not always possible).
Never pull or stretch a plug wire for the same reason, always pull on the boots.
If it slides up the wire, pull on the connector, but never pull on the wire.
Never allow your plug wires to touch the exhaust manifold.
(or anything else metal or hot)
"I Have The Body Of A God... Buddha"