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08-07-2014, 08:07 AM | #1 |
Registered User
Join Date: Mar 2011
Location: Elizabethtown, Kentucky
Posts: 322
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Tach Filter Question
I know this has been burnt up on other threads. I am still not finding what I am looking for. I am installed a factory tach, which was obviously junk, didn't know it at the time, so I purchased a new repo tach from Classic Parts and stated that I had to use a tach filter. I have read threads where some say it's needed etc. I figured since they recommended it wither for functional purposes or for a sale, I would use it. I just need the sime question of how to hook it up exactly. The tach like a factory one has the 12+ and coil terminals on the back along with a added ground post. I am just curious as to the proper way to get the filter inline with all this. Not quite sure I understand the directions. Call me stupid, just need some direction. I have managed to build this truck from the ground up, but stumped here.
I pulled pictures from other posts to show filter and directions.
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Thanks, Casey 71 Chevy C-10 SWB 350/400 PS, PB The Build http://67-72chevytrucks.com/vboard/s...d.php?t=584045 The Brake Upgrade http://67-72chevytrucks.com/vboard/s...d.php?t=695699 |
08-07-2014, 08:09 AM | #2 |
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Join Date: Mar 2011
Location: Elizabethtown, Kentucky
Posts: 322
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Re: Tach Filter Question
I know where the ground goes. I am thinking that the yellow goes to coil post on tach and that the red leads back to the coil itself? Do you all think this is accurate?
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Thanks, Casey 71 Chevy C-10 SWB 350/400 PS, PB The Build http://67-72chevytrucks.com/vboard/s...d.php?t=584045 The Brake Upgrade http://67-72chevytrucks.com/vboard/s...d.php?t=695699 |
08-07-2014, 09:25 AM | #3 |
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Join Date: Apr 2014
Location: Lafayette, LA.
Posts: 105
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Re: Tach Filter Question
whats up Casey? yeah that's a head scratcher! the only thing I'm not 100% on if it go inline with the tach signal or just piggy back on the tach itself
this is the way i would do it black to ground red to (-) coil yellow to tach did it come with any other fittings that might help figure it out? Chris
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"They Don't write songs about Hondas " 1972 C10 "Ole Red--blood, sweet & beers" USMC 1989-1997 1st Anglico |
08-07-2014, 09:31 AM | #4 |
Senior Member
Join Date: Feb 2010
Location: Kennesaw, GA
Posts: 288
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Re: Tach Filter Question
Yes, the filter needs to be inline between the coil, red wire to (-) on coil, and yellow to the tach input on the tachometer, and black goes to ground.
The filter is used to cut down on 'rpm noise' on the radio coming from the coil. With a modern radio, or radio block-off plate, I doubt you even need one.
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-- '67 Chevy Stepside 250 Inline 6 Megasquirt Fuel Injection T5 5 speed conversion Ferric Oxide impregnation throughout Last edited by Zeke's Garage; 08-07-2014 at 09:32 AM. Reason: Color clarity |
08-07-2014, 09:35 AM | #5 |
Cluster King
Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: Tach Filter Question
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Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C |
08-07-2014, 10:27 AM | #6 | |
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Join Date: Mar 2011
Location: Elizabethtown, Kentucky
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Re: Tach Filter Question
Quote:
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Thanks, Casey 71 Chevy C-10 SWB 350/400 PS, PB The Build http://67-72chevytrucks.com/vboard/s...d.php?t=584045 The Brake Upgrade http://67-72chevytrucks.com/vboard/s...d.php?t=695699 |
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08-07-2014, 10:35 AM | #7 | |
Cluster King
Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: Tach Filter Question
Quote:
That's what we are here for Casey. Glad it helped you. Keep up the good work on the truck. It is looking great. Take care, Tom
__________________
Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C |
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08-07-2014, 10:17 AM | #8 |
Registered User
Join Date: Jul 2012
Location: Ft Wayne Indiana
Posts: 1,204
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Re: Tach Filter Question
I hooked my factory tach to my HEI without the filter and it works just fine.
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71 K20 64 GMC mud truck |
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