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Temperature Sender, Wells TU5 Worked for Me

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Old 03-15-2016, 02:56 PM
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Ron Miller
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Default Temperature Sender, Wells TU5 Worked for Me

Just wanted to make a quick post to let folks know that the "apparent" overheating problem caused by incorrectly calibrated temperature sending units that is or has been quite common to C2 owners was corrected in my case with a Wells TU5 sender, sold by Autozone for about $15.00. This replacement put my gauge right on the money.

I provided more of a write-up in post #34 of a previous thread
(https://www.corvetteforum.com/forums...t-problem.html), but since this was quite an old thread from 2008 may have contributed more to confusion than clarification by reviving such an old thread.

The long and the short of it is that the Wells TU5 worked well for me, as it has for a few other forum members in the past. Sorry for the confusion!

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ironheadvette (05-20-2016)
Old 03-15-2016, 03:24 PM
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Mr D.
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I installed a Wells TU5 Temp Sender on my 65 w/ 427 and its accurate too.
Old 03-15-2016, 04:07 PM
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ChattanoogaJSB
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Thank you Ron!
Old 03-15-2016, 06:42 PM
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59BlueSilver
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Won't work on a C1...
Old 03-15-2016, 06:56 PM
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Jalopy31
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The TU-5 worked well in our '64 also.
Old 03-15-2016, 09:52 PM
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427390HP
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Originally Posted by 59BlueSilver
Won't work on a C1...
Why won't a TU-5 work on a C1??? I remember reading several times that the TU-5 is the best sender to use unless you have an NOS sender available.
Old 03-16-2016, 04:31 AM
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59BlueSilver
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Originally Posted by 427390HP
Why won't a TU-5 work on a C1??? I remember reading several times that the TU-5 is the best sender to use unless you have an NOS sender available.
I don't know, there's something funny going on. Had my gauges restored in 2012 and the sender worked fine. I changed to an aluminum manifold and then it read too high. I've tried several senders, mostly TU-5's, and they all read too high. Finally installed a 15 ohm resistor inline, but I don't like it. Afraid it won't give me enough notice of an overheating condition.
Old 03-16-2016, 01:50 PM
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65 vette dude
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Tu-5 worked on my L79

Last edited by 65 vette dude; 03-16-2016 at 01:50 PM.
Old 03-16-2016, 02:28 PM
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Originally Posted by 65 vette dude
Tu-5 worked on my L79
Yes, they seem to work fine on C2's, not so much on C1's.

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