Welcome to JA!
How many miles or hours on the engine
were the cam and bearings flaking or pitting (parts replaced)
was the spacer plate removed between the head and block?
The engine has 500 miles on it since rebuilt but has never been ran hard, just back and forth on test drives, it was done about 2 months ago and I am just getting the truck back on the road. The cam and bearings were pitted and flaking so we did have to mike and turn the crank and use oversize bearings. All this was done at a reputable machine shop. I am not sure if the spacer plate was removed. Originally we just did a head gasket, then ran the truck 150 miles and noted low oil psi, I decided to replace main bearings at that time and noticed the pitting so thats when we decided to take the engine down to the cam and crank. We did not dissasemble the head gasket or top of the engine again, all was done without removing head gasket a second time because we took engine out of the truck to do repairs. I took the blow by tube off of the truck today and looked inside, looks like assembly lube and slime build up a little bit inside, not bad. I put a dixie cup below the blow by port and in 2 hours it filled about 1/2 the cup with a clear liquid, looks like water. I assume if the head gasket is leaking again, it would use water and fill the oil pan with antifreeze but it is not. Some are telling me this is just condensation from assembly? Engine seems to run fine and has good power but there is condensation coming out of the dipstick tube and the fill tube when engine is running. I tasted the oil and cannot detect an antifreeze taste in the oil and oil is not milky or green.
Thanks for the information.
How many miles on the engine before the problems started?
is there anything going on with the antifreeze,,,,,,,,,, example
when you remove the radiator cap there is a buildup of stuff on the cap?
Do you do oil sample testing on this during any PM services?
Thanks again for the update.
Sense were not using any coolant
we don't have any fuel getting pumped into the radiator,
so we know the head is ok,
if there was still some contamination in the block this would be cleared up by now.
the low oil presser will come back in time i think with the crank case making h2o and possible co in the crank case
Here is my experience with this problom
i asked about pitting in the bearing surfaces this says h20 has been in the crank case for a while
a oil sample test right now will tell you what is going on in the crankcase
we can have a problom with
the spacer plate between the head and block there is a bunch of o rings between this and the block a cracked o ring on between the spacer plate and cylinder jug will let burnt compressed gases into the crank case this will cause h20 watter in the crank case
also a cracked o ring on the top of the cylinder jug between the jug and block will do this too
and then there is pitting of a cylinder jug not enough to let antifreeze into the combustion chamber but let the compressed burnt gases into the crank case and doing what your experiencing,
if you pull the oil fill cap and hold your hand over the filler tube and it is pushing your hand away
i would pull the head and spacer plate and push out all of the cylinder packs
you can have just one of these problems or all described.
Let me know if i can help more!