New Tach board fail
Thread Starter
Pro
Joined: Jan 2009
Posts: 526
Likes: 90
From: Kings Park NY
New Tach board fail
I recently installed a new circuit board for my tach from Wilcox along with the filter and It didn't last 500 miles. What causes the spike in voltage and how to stop it. I just ordered another board and filter.
Burning Brakes
Joined: Feb 2011
Posts: 850
Likes: 12
From: Shakopee MN
Check the quality of the solder joints
I'd check the quality of all of the solder joints on the board. I first bought a replacement board for my 75-77 housing as I was converting my '71 mechanical to electric.
I bought the board from Willcox but could clearly see that it was defective even before I put it in. Check out the 2nd and the 3rd from the top right in that line near the word "Common" and you can see the issue:
I contacted Willcox and they promptly sent out a replacement.
I bought the board from Willcox but could clearly see that it was defective even before I put it in. Check out the 2nd and the 3rd from the top right in that line near the word "Common" and you can see the issue:
I contacted Willcox and they promptly sent out a replacement.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,853
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Malicastasr-
We have very few problems with the tach boards, but accidents do happen.
Stingrays board as do all our boards, must pass two test before they are put on the shelf for sale. The last test is a function test emulating an installation.
If you would like to send the original board back to me I'll be more than happy to check it for you... if it's defective I'll refund you the other board. If it's not I'll tell try to tell you what went wrong.
Willcox
We have very few problems with the tach boards, but accidents do happen.
Stingrays board as do all our boards, must pass two test before they are put on the shelf for sale. The last test is a function test emulating an installation.
If you would like to send the original board back to me I'll be more than happy to check it for you... if it's defective I'll refund you the other board. If it's not I'll tell try to tell you what went wrong.
Willcox
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
I am assuming its an 82 but the later C3s had a inline fuse to protect the board from spikes...it may have started in 1978. You may want to check that out as well
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
You still gotta figure out what is spiking the voltage if indeed it is and the spike is taking out the board.
I am assuming its an 82 but the later C3s had a inline fuse to protect the board from spikes...it may have started in 1978. You may want to check that out as well
I am assuming its an 82 but the later C3s had a inline fuse to protect the board from spikes...it may have started in 1978. You may want to check that out as well