Why does my tach stick?
Thread Starter
Racer
Joined: Dec 2005
Posts: 399
Likes: 0
From: Kearns UT
Why does my tach stick?
I have a 78 Vette and my tach usually sticks at 2500 RPM. It will always "unstick", but sometimes takes a while. I can drive it one time and it won't work, then the next time it works just fine.
I have an Accel distributor, with MSD module inside. It has a 6AL box which fried, so I put the MSD module in the distributor.
I'm not sure if any of the mods are causing it or if it's a sticky tach, but hopefully someone can help.
When it works, it works just fine, all the way up to 5000 grand (I don't take it over that).
I have an Accel distributor, with MSD module inside. It has a 6AL box which fried, so I put the MSD module in the distributor.
I'm not sure if any of the mods are causing it or if it's a sticky tach, but hopefully someone can help.
When it works, it works just fine, all the way up to 5000 grand (I don't take it over that).
Burning Brakes
Joined: Jun 2005
Posts: 764
Likes: 2
From: THE OLDER I GET THE BETTER I WAS! NORTHERN ONTARIO
I just wnet through some tach problems mine turned out to be the tach board...yours sounds like (Now I am not by any means an authority) but it seems to me I've heard that the dampining fluid inside the tach assembly can go dry this may be your problem.
