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| Water in engine oil cntd... |
| Author |
Message |
    
Marc terHorst
Member
Username: mpt
Post Number: 8
Registered: 05-2007
| | Posted on Monday, October 19, 2009 - 12:31 pm: | 
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Well, after I got the sludgy water infused oil out of the engine(see previous post), I put in new oil and filter. I performed a compression check on all 6 cylinders. The numbers I got are as follows- #1 cyl- 172psi, 3-174, 5-172, 2-178, 4-178, 6-181. I think the numbers looked good, but it didn't answer my problem on where the water was coming in! I now have the engine stripped down to the heads(removed intake manifold) and found a little more sludge in the valley between the heads, and a lot under the valve covers. I'm thinking about pulling the heads. I hope maybe there is a breach in the head gasket some where between the cylinders. Otherwise, I will be stumped about where the leak is. BTW, when draining the block, some sludge, instead of water, was slowly dripping out of the drain plug. My biggest fear is that my block has a crack in it, or it's rusted out in side where oil and water are mixing. |
makomark
Senior Member
Username: makomark
Post Number: 1713
Registered: 09-2008
| | Posted on Monday, October 19, 2009 - 04:25 pm: |
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Your numbers look good, maybe a little bit high (probably due to some carbon build up) but nice and consistent.
The sludge indicates the interconnect between cooling and oil passages has been there a while.
If there was NO water in the cylinders when you pulled the pulls, the problem is likely due to one or two items. The first is the intake gasket leaking. Since you have removed it, it will be hard to confirm this as the source. the other likely cause is the crack you mentioned, in the intake, the heads, or the block.
Ideally, you could have pressure tested the cooling system before the intake came off. If the water jacket wouldn't hold pressure, you'd know that was the source for the water (but not exactly where). That said, you could take the intake and the heads to a machisne shop and get them to inspect those parts for cracks. If those aren't cracked, the block is about all that is left, sad to say.
How old is the block and does it have closed cooling? |
Marc terHorst
Member
Username: mpt
Post Number: 9
Registered: 05-2007
| | Posted on Monday, October 19, 2009 - 04:45 pm: |
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It's a 1999 block with outside raw water cooling. If it had a fresh water heat exchanger system then I would have checked it. I will pull the heads next then report what else I might discover. Thanks for replying,
Marc |
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