BB fans...
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
Last year I had a problem with my 69 heat spiking afer driving a while. It had dual electric fans, aluminum radiator, higher flowing water pump, pretty much the works. Couldn't figure it out, I replaced the thermostat a few times thinking it was sticking, without any luck. Wired my fans, key on power rather then switched, still had the problem. I started thinking my problem was either a thermostat that didn't flow well enough or I was getting some sort of air pocket stuck below it not letting the coil on it get hot enough. I pulled the thermostat and drilled three small holes it and reinstalled and filled. I test drove it and it did much, much better, now it was only a small spike to 210 then back to 180 and would stay at 180 after that. Pulled it back out and drilled three more holes in it, problem was solved. Now what actually caused the problem may never be determined(low flowing thermostat or air pocket), but the solution worked. Just something cheap and easy to try before you go into more expensive options.
Pat Kunz
Pat Kunz
Also, guys it's very easy to test a thermostat for proper function, as I've posted before...
Melting Slicks
Joined: Jun 2001
Posts: 2,340
Likes: 2
From: Moro IL
Pat Kunz
