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by **MIKESMONZA** » Thu Jul 26, 2007 12:19 pm

Zeke;

What do you think it would cost to make a small package :arrow:

with this for h-members for the factory tach ? :arrow:

It would be nice if it looked like the original,,,LOL,,,,Yeah right :roll:

,,But would it be possible ?????Mike

by **zeke** » Thu Jul 26, 2007 9:53 pm

I haven't a clue what it's supposed to look like cuz my car had no tach. Two resistors and two capacitors should be no more than 5 bucks tho.

by **zeke** » Thu Jul 26, 2007 11:08 pm

A quick search of google...

http://www.rodneydickman.com/CorvetteTachFilter.html

by **Len** » Fri Jul 27, 2007 12:52 am

Thats great Zeke !!!! Now we just need the values of the capasistors ??
Any one ???????
Len

by **zeke** » Fri Jul 27, 2007 7:26 am

I'd try about 0.1 microfarad, 50V capacitors. Just a guess on my part, if I had a factory one, I could measure it.

by **MIKESMONZA** » Fri Jul 27, 2007 2:37 pm

Len wrote:Thats great Zeke !!!! Now we just need the values of the capasistors ??
Any one ???????
Len

Just remember to check to see if "cap" has sister"s" :arrow:

LOL

I am no electrical genius but,,,, I thought they had bred a new capacitor with a resistor and came up with new name. :arrow:

Thank's Len,,,For making my day,,,and Zeke,,,I spent 2 hours month's ago looking in all of the wrong place's for the Tach Filter,, even in corvette trouble shooting forumns, and their want ad's,,,Seem's like we could have a solution,,Mike

by **Dannyboy** » Fri Jul 27, 2007 2:53 pm

my experience tells me that it is the orange resistor shown on pic
that fails on the monza tach EVERY TIME!..........
Have replaced it several times

by **MIKESMONZA** » Fri Jul 27, 2007 3:30 pm

DANNYBOY;

See some one who is in the know,,, Thank's that may be the one thing that no body's thought of. :idea:

What were your symtom's,,,#1 redline at start and stays that way ,#2 shaky needle,,, or dead needle sitting still??? Mike.

by **Dannyboy** » Fri Jul 27, 2007 3:41 pm

My tach needle "stuck" half way up from Zero
even if you turned off the ignition.
then it moved up slowly when I started the car
then just moved around ghostlike.
but did not respond at all to the engine revs.
//Dan

by **MIKESMONZA** » Fri Jul 27, 2007 6:39 pm

Well that might be a lot of other's symptoms,also,,, :?:

Any one else have a simular type of tach not doing what's it is supposed to :?:

.,,,

My went to redline stop then back to zero as I turned the Key and started, then sat there doing nothing, but with other tach's that the new owner has no movement at all, Or it just will not work, The internal fix is probaly the one that a lot of us need after a voltage spike thru the tach filter,on it's way out!,,,Thanks Dannyboy,,, Mike

by **Len** » Sat Jul 28, 2007 12:18 am

Hey people do we know the GM part NO# ? For the tach filter

Len

by **Len** » Thu Aug 02, 2007 11:31 pm

Finally found this one in the red spider it wasn't on the firewall, but hidden along the wiring harness that runs down the rt valve cover.
Len

by **MIKESMONZA** » Sun Aug 05, 2007 12:02 am

Len;,,,,,

try Clyde Biagi,, :arrow:

He has a lot of contact's,,,NOS stuff and used :arrow:

He looked before and found someone with one for me but ttttt(The guy wanted a small fortune) and Clyde probaly know's the #'s for the part's,,,,Mike

by **OldsStarfire** » Fri Aug 10, 2007 11:17 pm

Where does this Tach filter mount? My car had the tach added and has no filter.

Thanks Jeff

by **Len** » Fri Aug 10, 2007 11:33 pm

Well on my 80 spider one of the lead was attached to the tach terminal at the dist the other end to the wiring harness near the alt. I have yet to find it in the 75 skyhawk.
Hey zeke are these filters to protect the tach or only for rfi interferance on the radio ?????

Len

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