I discovered water in my motor oil after an oil change. I believe the water is leaking through the intake manifold gasket. I replaced the manifold intake gaskets two years ago because of an oil leak in the back of the intake. I fixed the oil leak, but maybe the coolant ports of the intake did...
Thanks..No salt water. The exhaust manifolds looked good a couple of years ago. I did a pressure test a couple of years ago as well. That is a good suggestion. What pressure should I put thru the system? I forget what I did in the past. If I remember correctly, I sealed off the exhaust at the...
Thanks...Motor runs great...No dieseling...It does appear that Vortec motors do have issues with water leaking into the motor from the intake. I did replace the intake gasket in the spring because of a small oil leak and noticed a small amount of pitting around the water ports. I did not use any...
It was a summer of boating hell. The drive locking up was random and very frustrating. It would lock at high rpms and then move freely afterwards. Before I knew it was the drive, I would pull the plugs and water was in the cylinders. I would turn the motor over without the plugs and water would...
I replaced the intake gaskets because a small oil leak in the rear of the intake. I replaced the head gaskets because I thought the engine was Hydo locking (misdiagnosed). The Hydo locking turned out to be my stern drive locking-up at high rpms and sucking water thru the exhaust manifold...
I change my engine oil today in preparation for winter storage and noticed the oil was milky so there is water in the oil. I don't believe there is a lot of water since I check my oil regularly though-out the season and did not notice the oil level rising.
I replaced the intake manifold...
Got out on the water tonight and it appears the issue was timing. I did also replace the plugs, distributor cap and rotor to be safe, but moving the distributor around fixed the problem. Thanks!!
I was very careful in torqueing the intake bolts. Followed the Mercruiser Shop Manual word for word. Thanks....I will check for a vacuum leak. I have not checked that.
Sorry..I should have kept my original thread. Thank you for the information...Any suggestions on how to get distributor closer to the mark? It appears if I go to the next gear on the distributor the tang points too far to the other side of the mark.
I did remove the distributor to replace the intake manifold gaskets and marked the placement of the distributor. I believed I got it back in the correct orientation. I just want to make sure it looks right.
Thanks for the info!!...I ordered a new cap and rotor to eliminate any issues with them. My plan for the distributor "phase issue", is to go to TDC on cylinder 1 and check if everything lines up correctly without removing the distributor. Make any adjustments if needed... I believe this should...
