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I went to the local auto parts supply only to find out that Autozone uses a Wells temp sending unit p/n TU-22 which is no where close to the one I need. It was smaller, I could drop it through the hole in my engine, plus the connector was a threaded rod vs. mine has a flat round top on it that my connector slides around.
Right, that's the '64-up sender, which not only won't fit but won't work with your '61 gauge. Get one of the ones I called out by part number, and it will fit and work.
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Napa says they can get me one in a day for 10.49. I dont know until it comes in if it is correct either.
Well, if it's an Echlin TS6463, then yes. If it's a TS6178 ('64-up sender), then no.
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Can anyone explain to me how this thing could have gone bad and be showing too hot? I normally understand when it quit sending a signal at all, but this perplexes me.
It's an element whose resistance varies with temperature. If the engine was ever heated up (not even severely overheated), this can throw off the calibration of the variable resistor. They had a few problems with the OE sending units in '60-'61 not making the gauge read where it should...customers were coming back to the dealer complaining of overheating which didn't actually exist...the initial fix prescribed by the factory was for the dealer to install a plain resistor in the sender wire, and tuck it out of sight, to reduce the gauge readings for any given coolant temp! Eventually they released a revised sender and customers got that one.
One further question: How accurate is your gasoline gauge?
I have not checked the timing, though right before all this happened, I messed with the carb a bit to get it running better, but other than that, I havent touched anything. The carb is a single barrel. My car was puttering and idled high, so I slowed the idle down, and adjusted the screw on the bottom of the carb as instructed, turn clockwise until the car wants to die, the turn left half. It seems to run great now.
I have not checked the actual temp yet either, I can say that my radiator is not overflowing so I consider that a good sign, and yes, I beleive that the cap is good.
Thanks for all your help on all the threads![/quote]
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