TAC help for 76 L48
Burning Brakes
Joined: Apr 2000
Posts: 1,207
Likes: 1
From: Cave Creek AZ
Re: TAC help for 76 L48 (RED76)
Yup, mine stays at 3500 all the time. More then likely the tach circut board at the rear of the gauge. A real PITA to replace as most of the dash has to come out to get to it. The part can be had for about $50.
JoeB
JoeB
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
Re: TAC help for 76 L48 (RED76)
You can check the wiring connection at the HEI; these can get loose or dirty, or both. That might help and it's cheaper than replacing a printed circuit.
:)
:)
Pro
Joined: Jun 2000
Posts: 668
Likes: 1
From: KY
Re: TAC help for 76 L48 (Easy Mike)
could be the tach filter. It's a little canister that is in-line between the distributor and the tach. It bolts to the top of the intake manifold right behind the carb (toward the firewall side).
They're not being made, but sometimes they turn up on ebay (I got one there last summer). Also, I believe Zip is considering making them but not on the market yet.
Jeff
They're not being made, but sometimes they turn up on ebay (I got one there last summer). Also, I believe Zip is considering making them but not on the market yet.
Jeff
Le Mans Master
Joined: Feb 2000
Posts: 7,032
Likes: 2
From: Newburgh NY
Re: TAC help for 76 L48 (jeffnles1)
could be the tach filter. It's a little canister that is in-line between the distributor and the tach. It bolts to the top of the intake manifold right behind the carb (toward the firewall side).
They're not being made, but sometimes they turn up on ebay (I got one there last summer). Also, I believe Zip is considering making them but not on the market yet.
Jeff
They're not being made, but sometimes they turn up on ebay (I got one there last summer). Also, I believe Zip is considering making them but not on the market yet.
Jeff
