Thread: coolant in oil help!!!!!!

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350 chevy engine car had set for some time about a year or so, oil pan full of water and milky white oil, changed oil and filter, filled radiator fired it up, radiator immediatly drained into oil pan and of course turned milky white. so i removed both heads, checked for cracks, looks ok, nice flat block deck, cleaned off head surface, everything looked good, no water in cylinders, flat head surface, all clean installed new head gaskets, intake gaskets etc, correctly torqued, fired it up, radiator immediatly filled up oil pan????????? doesnt seem to be in cylinders? what am i over looking? i have not done a leak down test but that is next, so what am i not seeing here????

I'm no expert at this but it sounds like a cracked block possibly???

If the oil pan was full of water & milky white oil initially could that be why it was sitting idle for a year or more? Sounds like it froze and cracked the block down low, opening up the coolant passages to the inside of the block and into the pan. Sounds like the block is scrap unless you find a miracle.....

Check for a miss match of the intake manifold check to be sure the intake and head angles are parallel and the manifold is not bottoming out on the front and rear of the block do you have freezing conditions where you live in az. it could be roger is right but I think it must be a awfully big crack to fill the pan that fast maybe it is ,,,,,ted

Originally Posted by ted dehaan

Check for a miss match of the intake manifold check to be sure the intake and head angles are parallel and the manifold is not bottoming out on the front and rear of the block do you have freezing conditions where you live in az. it could be roger is right but I think it must be a awfully big crack to fill the pan that fast maybe it is ,,,,,ted

Looks like Buckeye's a suburb of Phoenix, so a frozen block is not going to be the problem unless it "sat" somewhere else or got busted some other way? Ted's right, if it's not a busted block then the intake to block interface is about the only place that could put that much water into the pan quickly. Sorry for the bad info...

No need to apologize Roger your first post could very well be correct!!

January 13th was the coldest day of 2013 in Buckeye AZ with a temp of 23 degrees.

That would have been the “official” temperature. The actual temperature may have been even colder where the car was parked. I live in a small depression between 2 hills. In the winter the cold air settles in the depression and we are usually 5-10 degrees colder that the official temperatures taken at the top of the hills…..that could also be the case for this car.

Depending on where the car was parked and if it had any antifreeze in it I would definitely not discount a cracked block due to freezing.




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I know that usually the head will crack from over heating also but couldn't that also crack the block?
AND? couldn't the cause for that overheating still be lurking in the shadows?

meller

I would drop the pan if possible and see if the rod ends were soaking in the water too......hate to see a bunch of work done only to learn the bearings are rusted and pitted on the crank and rods.

Head gasket in really sad shape?

Jim

My Jeep did that once, luckily for me it was just the blown head gasget! Let us know what you find out.

Sounds to me like it's time to magnaflux the heads, block and manifold if it is iron . Either that or begin with known-good parts and sling what you have over the fence.

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