Quote:
Originally Posted by fintstone
You can use oil plug sealant on the threads, but that will not help if the nuts are not tight enough due to the threads being boogered up (and it is coming out from the back of the nut)
Also, check for a crack in the thermostat. I circled a spot (in red) I would check in the photo. Also, the hoses must sit perfectly straight in the thermostat housing to seal. In this photo (see blue arrows), it looks canted a bit (might just be the photo angle).

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Looking at the photo, just to the left of your red circle, the thread looks buggered up.
I'm planning to loosen up all the connections so I can get all the fittings seated correctly.
Dave