Re: 23 Series - Overheating 288 engine

Posted by Paul E. Gallagher On 2008/7/23 20:32:50

I installed a 160 degree thermostat today and it seemed to help. The temp gauge didn't spike to hot at idle like it did before. The thermostat had in fact been removed when last serviced before I bought it. I'm glad someone pointed out about the retaining ring because I then knew to look for it. Thankfully, they left it in the outlet so I only had to get the thermostat itself. I went with the 160 degree at Jay's suggestion, and also the AEA tune-up sheet I downloaded said that it could open at 148 to 156 degrees.

It was only about 80 degrees here today, but it ran just a little higher then center on the gauge, came to normal at about 40 mph, and I let it idle for 10 to 15 minutes after it was hot and the gauge only went to about halfway between center and hot. It cooled back down to center after driving a bit.

We'll see what happens on a hotter day, but at least
I had no problems with hard restart when it was running a while.
Thanks again for all your interest.