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C20XE Head Gasket


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Looks like the head gasket might be on it's way out as water has been coming out of the radiator overflow during the last few journeys.  The car hasn't overheated.  The engine has done around 2000 miles in 4 years since a rebuild with new thermostat, rad cap, water pump, etc.  

Are there any known problems with the early Coscast head and are some gaskets better than others?

What pressure rad cap should I be using on the standard Manta rad with the C20XE I think the one I've got at the moment is 13.5psi?


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