Temp Sender Resistance
Safety Car
Joined: Jul 2002
Posts: 4,269
Likes: 3
From: St. Charles IL
Cruise-In 5-6-7-8-9-11-12 Veteran
A CI-6 Car Show Winner
Don't know the resistance, but I do know that even GM has had problems supplying the correct one. The only one I have had any luck with is the unit sold by Lectric Limited
Safety Car
Joined: Oct 2004
Posts: 3,924
Likes: 736
From: Youngstown Ohio
I don't know the resistance for a '71 , as it's different than a '69 (mine), & there is a slight variance in each individual unit. Clocks by Roger sells the CORRECT units for each year. I bought mine for around $25.00. Link...www.corvetteclocks.com
Thread Starter
Instructor
Joined: Oct 2002
Posts: 147
Likes: 0
From: Hiram GA
The problem I'm having is, my new heads only have 3/8 port while the stock heads are 1/2. So I'm not sure if I can find a sensor that will work with the stock gauge. I'm starting the engine for the first time and I also installed new electric fan, so I want to make sure the temp is alright.
Safety Car
Joined: Oct 2004
Posts: 3,924
Likes: 736
From: Youngstown Ohio
Originally Posted by Simul8
The problem I'm having is, my new heads only have 3/8 port while the stock heads are 1/2. So I'm not sure if I can find a sensor that will work with the stock gauge. I'm starting the engine for the first time and I also installed new electric fan, so I want to make sure the temp is alright.
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
U could plot ur own temp graph up to 212*>
Originally Posted by Simul8
The problem I'm having is, my new heads only have 3/8 port while the stock heads are 1/2. So I'm not sure if I can find a sensor that will work with the stock gauge. I'm starting the engine for the first time and I also installed new electric fan, so I want to make sure the temp is alright.
Try a thermometer in a pot of wtr and slowly heat to graph the resistance up to boiling. And really 212* is the important temp here and the rest can just be close for good enough (for me) and used for reference. Relocating that sender in the intake is the next best thing but i suspect will have different average temp.
All my gauges were calibrated when Corvette Instrument Service rebuilt my gauge cluster with a new bezel. Very nice work and all gauges respond great but haven't start engine yet and can't verify temp gauge reading. U may want to email corvette inst service for a correct sender or calibrtation.
cardo0
Drifting
Joined: Dec 2002
Posts: 1,861
Likes: 2
From: New Zealand
Originally Posted by Simul8
The problem I'm having is, my new heads only have 3/8 port while the stock heads are 1/2. So I'm not sure if I can find a sensor that will work with the stock gauge. I'm starting the engine for the first time and I also installed new electric fan, so I want to make sure the temp is alright.
Let us know if you find a 3/8 with the correct thread and calibration, as I'd like to install a temp unit on my heads for a more accurate reading...........
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