68 Temp. Sending Unit Part #?
Thread Starter
Intermediate
Joined: Jul 2002
Posts: 46
Likes: 0
From: Little Rock Arkansas
Originally Posted by 68rdstr
Try a Wells TU5 sending unit. Should read about 700 ohms at room temp. You can get them at most auto parts stores.
Le Mans Master
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Not to be smart, but with a 68 engine why not just go into NAPA and ask for your application? The problems come in with swapping later engines in early cars, then use an 82 sending unit. They have smaller bosses in the heads than the early engines.
Thread Starter
Intermediate
Joined: Jul 2002
Posts: 46
Likes: 0
From: Little Rock Arkansas
Ok , earlier its said to be 700 ohms at room temp. Are all (68 to 82) our temperature Gauges set to use this? I've tried once last year and ended up with something close. It went to a late 80's chevy truck. If one is reading to high by about twenty degrees, can I add a resistor to it to drop the reading?
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Melting Slicks
Joined: Oct 2001
Posts: 3,025
Likes: 12
From: Pleasant Grove AL
If you add a resistor you may well end up with an accurate reading in one range and very inaccurate in another. Remember that the real purpose of the gauge is to warn you of an overtemp condition, not to give a certain reading at normal temps.
Try the Wells TU5 from Autozone. They cost $6. Mosy people who try them report good success. I discovered these about 5-6 years ago and started recommending them on the NCRS board. Since then, probably 2 dozen people have emailed me to tell me the TU5 worked in their car. All the Vettes from 57 to about 76-77? use the same sender. It will work with the 56 also, but the wire connector is different.
Try the Wells TU5 from Autozone. They cost $6. Mosy people who try them report good success. I discovered these about 5-6 years ago and started recommending them on the NCRS board. Since then, probably 2 dozen people have emailed me to tell me the TU5 worked in their car. All the Vettes from 57 to about 76-77? use the same sender. It will work with the 56 also, but the wire connector is different.
Melting Slicks
Joined: Dec 1999
Posts: 2,157
Likes: 0
From: Pensacola FLA
The Wells TU5 is what I am using in my original 327 and it has been reading accurate. I read about it on the NCRS board. I also had to replace the pin type connector on the wiring harness with a mushroom head type connector.
