Oil In Coolant

We’ll I checked the bolts as you said, and of the 3 bolts 1 bolt took a small fraction of a turn and another bolt (rear bolt) took 1/4 -1/2 turn. It is slightly oily near that area due to my hy-lo pump that slung some hydraulic oil there. I guess it’s a possibility. I had changed the t-stat 2 years ago from a 160 to 180 since I mainly use it in the winter. I’ll have to check those bolts more often and put some more loctite I them.

 

Haha…I hear ya.