Original '75 350 owners
Thread Starter
Racer
Joined: Jan 2003
Posts: 294
Likes: 0
From: Rochester NY
Original '75 350 owners
I'm trying to figure out why my tachometer spins backwards. If you have original tach wiring, could you please check the color of the two wires to the tach? Is the forward wire black and the rear wire red? Anyone have any thoughts as to any other wiring that might have gotten transposed and caused the reversal?
TIA as always!
TIA as always!
Racer
Joined: Jul 2004
Posts: 420
Likes: 1
From: Lapeer MI
Man I'd love to help you. My tach is hanging out on my 75 just waiting for me to look at it and answer the question. I'm deployed and won't be home for 2 months. Ask me then if you still need to know. I'd be happy to go look for you. Good luck
Intermediate
Joined: Jun 2001
Posts: 28
Likes: 0
From: Lake Saint Louis MO
I just walked outside and looked at my '75. The tach wiring at the distributor is a brown wire coming through the firewall , connected to the tach filter, then plugging into the HEI distributor in the connector marked Tach. The larger Pink wire is the 12v source for the distributor. Plugs into the connector marked BAT. The only other thing I can think of is actually switching the wires at the actual Tachometer. I replaced the circuit board on mine this past winter and was careful to reconnect the wires properly to the spade connectors, although I believe it was a single connector with three wires.
