Originally Posted by Delancey
Spot on with that assessment my friend. I wasn't paying attention but you can see the white aluminum
oxide on the face, hence the broken bolts. Doubtful the cover has ever been removed.
I notice the goo is on the non-flow side. Suppose that is a factor in its accumulation as this sort of concentrated jelly? Does it affect the performance of the thermostat?
I would think if the engine
was running regularly the oxide would not be a problem.
problem comes when the engine stands without running,oxide should dissolve once there is a bit of flow if it is still "jelly" like.
seen this many times on outboards,where the cooling
galleries have become totally blocked by oxide and salt
which will quickly overheat an engine.
the oxide crystalises if it dries out and becomes hard but should stay soluable in liquid