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76 Tach Filter

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Old Dec 27, 2007 | 08:53 AM
  #1  
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Default 76 Tach Filter

Hello. Wanted to change out tach filter while I had my dash apart.....Where is it?....I had some tach fluctuations before ...Thanks, Pete
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Old Dec 27, 2007 | 09:28 AM
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It's not under the dash.

It is a condenser looking thing with a short wire on it right next to your distributor on the driver side rear of the intake manifold.
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Old Dec 27, 2007 | 09:30 AM
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I think it's gonna be on or near the distributor. A cylinder with a wire coming out of each end.
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Old Dec 27, 2007 | 09:41 AM
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This might help locating it and what it looks like:

http://www.ecklers.com/Illusrate_pop...jpg&text=46137
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Old Dec 27, 2007 | 09:47 AM
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Originally Posted by karol
This might help locating it and what it looks like:

http://www.ecklers.com/Illusrate_pop...jpg&text=46137
Thanks for the info. Always wondered where that sucker was.
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Old Dec 27, 2007 | 09:52 AM
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I've always kind of wondered if I should put one back on mine. My engine didn't have one when I got it.
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Old Dec 27, 2007 | 09:54 AM
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Originally Posted by Durango_boy
I've always kind of wondered if I should put one back on mine. My engine didn't have one when I got it.
You know the old saying, DB, if it ain't broke, ...
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Old Dec 27, 2007 | 09:55 AM
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Originally Posted by Jud Chapin
You know the old saying, DB, if it ain't broke, ...

I do, know that very well, but...

I have a pesky RFI problem that I'm having trouble isolating and a tach filter is about the only thing I have not tried.
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Old Dec 27, 2007 | 09:59 AM
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Originally Posted by Durango_boy
I do, know that very well, but...

I have a pesky RFI problem that I'm having trouble isolating and a tach filter is about the only thing I have not tried.
What's RFI?
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Old Dec 27, 2007 | 10:05 AM
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Originally Posted by Jud Chapin
What's RFI?

Radio Frequency Interference.

It's a high pitched wine that can be heard through after market or amped stereo systems. It's when a component of the stereo system is picking up noise from either the alternator or distributor. Ground loops can cause a similar noise but it's not RFI. Mine even does it when the head unit is off, the amps are disconnected, and the terminals to the tweeters register a 0.00V on a DMM. It's puzzling to say the least and it's stumping everyone including me. Like I said, the tach filter is just about the only think I haver not tried.
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Old Dec 27, 2007 | 10:06 AM
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Originally Posted by Durango_boy
Radio Frequency Interference.

It's a high pitched wine that can be heard through after market or amped stereo systems. It's when a component of the stereo system is picking up noise from either the alternator or distributor. Ground loops can cause a similar noise but it's not RFI. Mine even does it when the head unit is off, the amps are disconnected, and the terminals to the tweeters register a 0.00V on a DMM. It's puzzling to say the least and it's stumping everyone including me. Like I said, the tach filter is just about the only think I haver not tried.
Thanks.
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Old Dec 27, 2007 | 12:26 PM
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I get RFI from the misses sometimes - wonder if that filter would work on her???????
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Old Dec 27, 2007 | 12:34 PM
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Originally Posted by karol
This might help locating it and what it looks like:

http://www.ecklers.com/Illusrate_pop...jpg&text=46137

Thanks!....I'll look into it....Pete
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Old Dec 27, 2007 | 12:36 PM
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If you know how to solder, you can get the components from radio shack and build your own tach filter, that is what I did and only cost about 5 bucks and 30 min. It works great too.
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Old Dec 27, 2007 | 01:27 PM
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Originally Posted by 66roadster427
I get RFI from the misses sometimes - wonder if that filter would work on her???????
Try it and let us know the results!
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