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- - Factory tach wiring (https://67-72chevytrucks.com/vboard/showthread.php?t=598266)

Rubble

09-27-2013 10:05 AM

Factory tach wiring

Trying to get my factory tach working in the 81 K35. There was a thread a while ago with some diagrams,but I can't seem to find it.Any help would be great,TIA.
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hatzie

09-27-2013 10:54 AM

Re: Factory tach wiring

The 81 diagrams are in the back of the service manual. Look in my sig.

Twisted78SS

09-27-2013 11:19 AM

Re: Factory tach wiring

Here you go, I posted these on another thread some time back, adding to the list as I get time

http://www.2heeldrive.com/Chevrolet/...ng_Diagrams%2F

Jonboy

09-27-2013 11:55 AM

Re: Factory tach wiring

There are only 3 wires to the tach itself. You need a signal wire from the distributor to the tach, switched 12V+, and ground. The back of the tach is labeled as well.

Rubble

09-28-2013 04:29 AM

Re: Factory tach wiring

Thanx guys,that should work...
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