The thermostat housing is made of aluminum which bends and gouges easily. It can get damaged, and that commonly results in coolant leaks.
Most people say to put a bead of RTV on the surface of the housing cover where it contacts the base, then button it up at the proper torque spec. This works for a while, but it's messy to clean up when you have to open it up again to change the thermostat down the road.
Has anyone had success cutting a paper gasket for the therm housing? I would expect that to be a better solution.
If that works, then I wonder why the hell BMW didn't take that approach from the get go?
Thanks!
Most people say to put a bead of RTV on the surface of the housing cover where it contacts the base, then button it up at the proper torque spec. This works for a while, but it's messy to clean up when you have to open it up again to change the thermostat down the road.
Has anyone had success cutting a paper gasket for the therm housing? I would expect that to be a better solution.
If that works, then I wonder why the hell BMW didn't take that approach from the get go?
Thanks!
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