I have a question about changing cylinder head gaskets. I read several good advice documents on how to do it, but I never see anything about how to clean the mess in the engine, will an engine rinse with new oil, probably 2 oil changes close to each other after re assembly will be fine? What about , before disassembly, a rinse with those engine cleaners(in a can, one can and 5 min at iddle, then rinse off oil)...work fine? Should I take the oil pan off and clean it or will a couple oil changes will take care of all that after reassembly?. The radiator and block will be flushed at a shop with pressured hot water and other radiator shop chemicals they might use(upon reassembly, will drive car to radiator shop.).
I've noticed some surface rust inside the valve cover and the pushrod adjusters, clean up will be enough provided it gets clean or should new adjusters be used. I have these questions because I never changed a head gasket for the reason of water leak, never saw what I saw today. I noted , on piston #4 (gasket/piston ring on gasket, facing the back of the cyl head, towards the heater outlet)... that the gasket was knicked, I think that was the culprit, the gasket just rotted right there , perhaps whoever torqued it before it was my car, overtorqued it at the end. Last, my head says H72, seems like an oval ported head,what is the difference between a H72 GX and a H72 low compression?
Cheers.

Jaime.
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