MY SEWAG on this!!
Looking at photo one.
1. I would look for freeze damage and cracks
in the roof of valve chamber.
2. Also ALL of the water
needs to be removed from main bearing feed tubes and camshaft bearing feed holes in floor of valve chamber!
Water in the oil feed tubes will prevent oil getting to bearings and will damage them.
3. Post 19 photo #2:
Reason number 657 for not using water and for using antifreeze. Looks like maybe the water leaked around the several studs and collected near the nuts at top of studs.
This water rusts the threads on top of studs.
Then when re torque is done the nut jams on the rusted stud and clamping force value is way short of what it should be. Result is leaking gasket.
If anti freeze had been used then if there are leaks it does not rust everything.
Quote:
Originally Posted by Bob from Northport
To answer asapguy question. The cooling system was completely drained as well as the oil before any disassembly took place. No water could have come from any loose nuts. We found the three nuts that surround the distributor not as tight/torqued as they should have been.
These are photos of the inside of the valve cover assembly, and for some strange reason a great deal of rust spray under the drivers side of the engine pan and side of the oil pan.
That area was clean and black when it left the shop several years back.
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