79 Tachometer problem. New C3 owner.
Thread Starter
Racer
Joined: Jun 2003
Posts: 368
Likes: 1
From: Lititz PA
79 Tachometer problem. New C3 owner.
I just bought a 79 coupe. The camshaft needs replacing. Before I do this, I need to fix the tach. I think I need a new circuit board. With the battery disconnected, the tach reads zero. When I connect the battery the tach slowly rises, when I start the engine, the tach pegs. Does this sound like the board, or a problem with the wiring from the distributor? Thanks for any and all advice.
Le Mans Master
Joined: Oct 2001
Posts: 6,925
Likes: 0
From: Paradise City
Re: 79 Tachometer problem. New C3 owner. (pik)
Welcome to the Forum :cheers: I have the same problem on my '79-but after I've started it, it returns to normal. When I reconnect the battery, the needle rests in the extreme clockwise position. I would guess it's a problem with the circuit, because I've replaced my distributor and checked it a few times, although I could be wrong.
Team Owner
Joined: May 2001
Posts: 29,745
Likes: 3
From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
CI 6-7-8 Veteran
CI-VIII Burnout Champ
St. Jude Donor '06-'10, '13
Re: 79 Tachometer problem. New C3 owner. (79Corvette02)
Welcome to the forum.
Yes, this sounds familiar from others who said they replaced the board. You can get the new boards from Mid America Vette and I think Ecklers as well.
Yes, this sounds familiar from others who said they replaced the board. You can get the new boards from Mid America Vette and I think Ecklers as well.
Burning Brakes
Joined: Dec 2002
Posts: 1,205
Likes: 1
From: "Too Low, Too Fast, Too Loud" TX
Re: 79 Tachometer problem. New C3 owner. (BSeery)
Welcome aboard bro, and am sure that one if not more will chime in with some assistance or tips on getting your tach on the road back to working..!
Instructor
Joined: Nov 2001
Posts: 231
Likes: 0
From: Burlington NC
Re: 79 Tachometer problem. New C3 owner. (pik)
Pik,
I've recently pulled the tach out of my '79. I'd be happy to donate my old tach and pcb to your cause, provided you pay shipping. When I pulled it out it was functioning fine, I've updated my guages to the AutoMeter Ultra-Comps and have no need for the old guage. Send me an email offline if your interested.
Later, David
I've recently pulled the tach out of my '79. I'd be happy to donate my old tach and pcb to your cause, provided you pay shipping. When I pulled it out it was functioning fine, I've updated my guages to the AutoMeter Ultra-Comps and have no need for the old guage. Send me an email offline if your interested.
Later, David
