Author [expand]	[Modern View]
donald schlickau 09-29-2006 16:53:39 67.59.37.56 21676 Report to Moderator	I'm restoring a 1972 Chevy C20 and I have added a tach to the instrument panel. The tach factory wiring harness is connected to the tach and the distributor but there is another wire with 2 female ends with the harness, where do they to? Where might I get a good wiring diagram for the truck, I presently have a Chilton book but the wiring diagram is not complete. [Reply]  [Send Email]
sdkid 10-02-2006 22:21:37 71.38.25.102 21738 Report to Moderator	Re: 1972 Chevy C-20 tach wiring in reply to donald schlickau, 09-29-2006 16:53:39   There is some great info at 67-72chevytrucks.com   [Reply]  [Send Email]
Joe(TX) 10-02-2006 17:16:16 209.210.56.56 21727 Report to Moderator	Re: 1972 Chevy C-20 tach wiring in reply to donald schlickau, 09-29-2006 16:53:39   The factory manual has the tack wiring in the optional equipment part of the manual. The brown wire goes to the negative side of the distributer and the pink wire goes to the the ignition terminal in the fuse block. It has a y connector to allow other things to plug into it.   [Reply]  [Send Email]
RB/CT 10-01-2006 06:02:45 71.234.202.14 21698 Report to Moderator	Re: 1972 Chevy C-20 tach wiring in reply to donald schlickau, 09-29-2006 16:53:39   Looked under the dash of my 71 Chevrolet Pickup with factory tach. The tach has two terminals on the rear, the left one goes to the fuseblock for power and the right one goes to the distributor. Of course these wires have been replace, probably the factory tach dash board added later. Looked in my 71 sevice manual, and it does not show a dash with tach in it on the electrical diagrams. If it works accurately, your set, If worried check for current with a test light in the female ends, to see if their live. Good luck. Tried but could not answer.   [Reply]  [No Email]