I got a 5" Autometer tach/shift light from a friend of mine out of his 4 banger ***** and hooked it up in my car in place of my old broken tach.But this one reads about 2000 rpms higher than my old Autometer Tach.There's no way of adjusting/setting it from a 4 cylinder to 8 is there?

 

Check the back. There is usually a switch that lets you use it on a 4, 6, or 8 cyl.

 

Yes there is. I just bought a new Autometer with shift light and it came with directions on how to wire it for 4, 6, and 8 cyclinder cars. I don't have the directions now but I will a little later. I'll post them.

 

Thanx.If you could get back with the instructions,that would be great.

 

There will be 3 sets of wires that stick out the back... usually orange, green and red...(?) but if u have a v8 u need all of those wires connected (not cut) but for a 4 cyl... u cut 2 of those wires and thats why ur tach is off. U will probably need to open up the tach and solder the wires all back together.

 

Thanks alot guys for all of your help.