Just started stripping down the two LS 400 engines so we can replace cam belts and water pumps before we install said engines into the two Cobra's and we have come up against a simple problem.
From new, the water pump has a black plastic/ silicone gasket both to the engine block and to the thermostat housing. Looks like it is simply squeezed onto the mating surfaces in the factory and bolted up tight.
The new water pumps have been supplied with a thick paper gasket for the block face and no gasket whatsoever for joint between the thermostat housing and the water pump.
The question is, what do we use to seal the joint between the water pump and the thermstat housing. Is there a factory "goo" we need to use or will any instant gasket stuff work?
Other than that working on these engines is a joy, although the crankshaft pulley bolts took four hours and a load of swearing to shift !!
Cheers,
Tony
From new, the water pump has a black plastic/ silicone gasket both to the engine block and to the thermostat housing. Looks like it is simply squeezed onto the mating surfaces in the factory and bolted up tight.
The new water pumps have been supplied with a thick paper gasket for the block face and no gasket whatsoever for joint between the thermostat housing and the water pump.
The question is, what do we use to seal the joint between the water pump and the thermstat housing. Is there a factory "goo" we need to use or will any instant gasket stuff work?
Other than that working on these engines is a joy, although the crankshaft pulley bolts took four hours and a load of swearing to shift !!
Cheers,
Tony
