24-04-15, 04:42 PM
Finally finished it today and just in case anyone else has this problem, it wasn't the o ring. There was slight corrosion between the inside edges of the thermostat housing. Cleaned them up, a little lubrication, all back together and no leak.
Not the easiest of things to get to though.
Not the easiest of things to get to though.
I could change my opinion, but then we'd both be wrong.