How to install "Radio Interference Capacitor"

[LT-102]

I'm getting a whinning noise thru my radio that is in relation to the engine rpm and I believe it is caused by the alternator. A suggestion was to install a "Radio Interference Capacitor". Since they don't cost very much I figure I don't have a lot to lose if it doesn't work. Only problem is I have no idea how or where to install it. Help please,

[Longhorn Man]

Install it on the hot wire, the one that has constant power. Also, find a better ground, normally that does a better job of 'cleaning up' the sound.

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'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio

[BubbaGreen]

You can install both a 'capacitor' style
filter, but be sure and install one on both
the +12BATT & the +12V-ignition....one or
both of these could be a source of noise.
Also beware that you may need to also install
a 'choke' basically a transformer thing..
a coil of wire wrapped around a magnet of
sorts "an inductor" Just make sure if you
install this, to get one rated for the amount
of current you device draws (amps). Moving
the ground can also help...as well as making
sure your antennna lead is not routed next to
say the fan motor and that it too has a good
ground at the fender mount.


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71 Chevy C-10 SWB Fleetside WAS:307w/3-on-the-tree NOW:350TBI/700R4/3.73
See it at www.prismnet.com/~grzanich

[nroden]

Isn't there somthing for that built into the voltage regulator? Could be that needing to be replaced. Its a little piece inside the regulator case. I belive its a cylinder with a wire attatched to it. Maybe held down by a screw if I remember.

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Nick Rodenberg
Wellington, MO
http://nickrod.port5.com
You can click on "My 72 Chevy Truck"
I have a 72 Cheyenne 10 with a V8 350 and a TH-350 auto-tranny.
Ochre/White/Ochre
Runs well... working on body.
Plan to get painted weekend before memorial day weekend.
Planned to be done March 7 when I turned 16. Didn't happen. Chose to do better job and be behind schedule instead of 1/2 doing it and it looking like junk.

[Frank_Zeller]

Where you buying the capacitors from?

[LT-102]

I looked them up on Advace Auto's website. That's where I buy a lot of my parts.

[71Chev]

Is your factory R.I.C still hooked up at the voltage regulator? it is mounted to the reg, not inside it.

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• 71 Chevy CST Long Fleet 350/350/3.07 leaf rear.

[BubbaGreen]

That R.I.C. is usually just a 1000uF capacitor in a metal can (aluminum, with
a wire coming out the center and a clamp or
strap wrapped around the can, and it must
be attached to a ground to make it work)
If you go out junk-yarding, they are easy
to find...on older cars, just look for one
that is not melted/weathered too bad. But
again, its just a heavy duty capacitor. You
may still need to a 'choke' to your radio if
its sensitive to alt-wine.

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71 Chevy C-10 SWB Fleetside WAS:307w/3-on-the-tree NOW:350TBI/700R4/3.73
See it at www.prismnet.com/~grzanich