Overheating

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Jun 2, 2015 | 05:46 PM

#21

Gary's '66

Melting Slicks

Joined: Jun 2012

Posts: 3,115

Likes: 196

From: Wilton Ca.

Guess you don't wish to address the possibility of plugged water jackets, huh?

Gary

Jun 2, 2015 | 06:23 PM

#22

LDB C5

Drifting

Joined: Sep 2006

Posts: 1,757

Likes: 13

From: Stillman Valley Illinois

My Money is on the combination of higher ambient temps combined with the stuck thermostat

Just a side note; dont put any thread sealer or Teflon tape on the sending unit. It gets it ground through the threads.

Jun 2, 2015 | 08:03 PM

#23

JohnZ

Team Owner

Joined: Oct 2000

Posts: 38,897

Likes: 1,925

From: Washington Michigan

Quote:

Originally Posted by LDB C5

Just a side note; dont put any thread sealer or Teflon tape on the sending unit. It gets it ground through the threads.

Doesn't matter - that's another "internet legend" - the sharp pipe thread form will cut through any sealant with no effort at all, and even if it doesn't and resistance is increased as a result, that would make the gauge read lower, not higher. Read the paper below to see the testing done by this forum to address this issue.

Attached Images

Temp Sending Unit and Gauge-CF-Members.pdf (794.0 KB, 132 views)

Jun 3, 2015 | 09:50 PM

#24

JLSmith

Thread Starter

Racer

Joined: Jul 2014

Posts: 355

Likes: 119

From: Phoenix AZ

Success!

A new 180* t-stat did the trick. 97* here today and the car never got above 185* measured with an IR gun. I also learned that my dashboard temp gauge indicates 180* at the first mark - A good thing to know. Thank you to everyone for your suggestions and help.

Kurtibm, thank you for the lower radiator seal. I'll be putting it to good use.

- Jeff