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I have an 88 470 Mercruiser Engine. It doesn't overheat but the coolant boils out of the radiator cap and I can't find a new one. Does anyone know where to find one?
I have an 88 470 Mercruiser Engine. It doesn't overheat but the coolant boils out of the radiator cap and I can't find a new one. Does anyone know where to find one?
Right here: http://www.mercruiserparts.com/Show...EXHAUST+MANIFOLD+AND+EXHAUST+ELBOW+(ALUMINUM) (a standard 13 psi auto cap should also do) But I think you have other problems. If it is not overheating, it will not "boil over". It sounds like you are pressurizing your system. Maybe a head gasket leak. IMHO you need to do a engine compression test and cooling system pressure test to check it out. You can borrow tools for both (free) from Autozone. Hope I am wrong, but good luck.
