I purchased a water pump from ******** for my 92 400E. The sealing surfaces for the 2 paper gasket are as cast. One of the as-cast sealing surface is between the block and pump, the other one is between the top block and the pump. Traditionally, all sealing surface is machined to provide a good flat surface with good surface roughness. Has anybody uses their as-cast seal surface pump and has success?

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93 Toyota Corolla 177K
95 S 500 coupe 82K
92 400E 180K (SOLD)
94 E 420 150, blown gaskets (SOLD)
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