1983 V6 Tachometer
Thread Starter
Junior Member
Joined: Dec 2009
Posts: 5
Likes: 0
1983 V6 Tachometer
So Ive been readin' this forum quite a bit and I see that Tachometers in these 3rd gens are all f'ed up when they get older. Now with that being said... My tachomer is reading but it isnt staying pegged.when at Idle it reads about 4000 rpm and when I rev it pegs. It seems as if its reading way too high. I have a 1983 Camaro with a 173 2.8 2BBL think anyone can help give suggestions on how to maybe fix this without buying a replacement tach?
Joined: Aug 1999
Posts: 5,259
Likes: 459
From: RI
Car: 1984 Camaro Berlinetta
Engine: LT1
Transmission: T56 6-speed
Axle/Gears: 4.11 LS1 Rear End
Re: 1983 V6 Tachometer
It really sounds like your Tach has simply failed.
You should be able to locate a V6 Tachometer pretty cheap and they can be installed quickly with a couple simple hand tools. Finding one that's 83-84 V6 specific might take a little longer than finding a 85-89 style Tach ! ) When getting a replacement,........ be sure the oil pressure gauge reads 40/80. That indicates the tach was made for a V6. ( V8's had 30/60 oil pressure gauges )
You should be able to locate a V6 Tachometer pretty cheap and they can be installed quickly with a couple simple hand tools. Finding one that's 83-84 V6 specific might take a little longer than finding a 85-89 style Tach ! ) When getting a replacement,........ be sure the oil pressure gauge reads 40/80. That indicates the tach was made for a V6. ( V8's had 30/60 oil pressure gauges )
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Tach Pack
Your problem is in the circuit inside the dash that moves the pointer.
It’s contained on a small plug-in PCB or integrated in the main board.
On the PCB you’ll see a resistor chip.
Desolder pins 4 & 10.
Use a 500K potentiometer.
Solder it across traces 4 & 10.
Move the potentiometer to half way.
Start the engine and compare the tach reading with a test equipment quality tach.
Dial it in, unsolder one side of the potentiometer, measure it and buy the matching resistor.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If People Drove Any Slower They’d Be Going Backwards
When you see fog lights on in good weather beware. Low performance driver ahead.
How bout those nitwits too scared to drive without headlights in the daytime, and the nitwits that need headlights for a little rain
.
.
It’s contained on a small plug-in PCB or integrated in the main board.
On the PCB you’ll see a resistor chip.
Desolder pins 4 & 10.
Use a 500K potentiometer.
Solder it across traces 4 & 10.
Move the potentiometer to half way.
Start the engine and compare the tach reading with a test equipment quality tach.
Dial it in, unsolder one side of the potentiometer, measure it and buy the matching resistor.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If People Drove Any Slower They’d Be Going BackwardsWhen you see fog lights on in good weather beware. Low performance driver ahead.
How bout those nitwits too scared to drive without headlights in the daytime, and the nitwits that need headlights for a little rain
.
.
Thread
Thread Starter
Forum
Replies
Last Post
