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How exactly do you hook up a water temp sending unit? I have the unit plugged into the side of the block, I also have the gauge in place. What do I use to run between the two? Also what is danger hot once this gauge is working? Im running a 69-350 4 spd, if that helps any. I figure its pretty basic, I just cant figure it out.
The original is not there. The wires going to the gauge are yellow black and grey. I'm doing a rat rod type wiring. I dont have the engine harness. So I need to hook a direct line to the gauge. Any ideas
Last edited by patraw03; Jul 31, 2011 at 11:41 AM.
Hi p03,
You also asked about at what point hot temperatures become a danger.
The 71 owner's manual indicates "210 degrees for normal operating temperature".
"During hard driving, heavy traffic stop and go, and prolonged idling in hot weather the temperature may rise to 230 degrees".
"Whenever the gauge reaches 250 degrees , stop engine and determine cause of over heating or reduce speed to allow engine to cool".
I'd think the range would be about the same for your 69.
My 71, no a/c, sb, runs around 190 degrees at idle, with an aluminium radiator, rebuilt water pump, fan shroud, and all seals.
Regards,
Alan