Water in the oil! The next chapter in the burnt up exhaust series

[jdeeewp]

So new problem new thread! YAY

this happened this summer http://forums.iboats.com/showthread.php?t=508540.

I finally take her for a test drive last Friday and i notice steam coming from the Valve cover vents.
Now i have water in the oil, all milky in the valves and dipstick.

Also it starts really hard, starter seems to be struggling to crank, but i think the starter may be going, mainly because i get the click click and no starter kick a few times.

I am planning on a double change of the oil, this weekend (wedding and recovery last Saturday and Sunday) and a compression test to start the trouble-shooting.

Any other advice? anything to look for?

 

[svxtech]

Re: Water in the oil! The next chapter in the burnt up exhaust series

So new problem new thread! YAY

this happened this summer http://forums.iboats.com/showthread.php?t=508540.

I finally take her for a test drive last Friday and i notice steam coming from the Valve cover vents.
Now i have water in the oil, all milky in the valves and dipstick.

I am planning on a double change of the oil, this weekend (wedding and recovery last Saturday and Sunday) and a compression test to start the trouble-shooting.

Any other advice? anything to look for?

Last question of your last post- exhaust bellows won't sink a boat.

don't waste the money on double or triple oil changes- you need to tear that motor down. My bet is warped heads, or worse smoked block (unless you want to sleeve the cylinders/new rings the whole nine yards)...that was a serious overheat.

 

[jdeeewp]

Motor Strip down

Motor Strip down

I Pulled the motor and removed the heads, nothing is jumping out at me inside the engine....

So prior to changing the oil I cranked it over without the plugs removed. The rear two cylinders on the starboard side fired water out of them (and maybe the front as well but hard to tell).


Next I strip it down to pulling the heads off, This is what I find:

-I take off the starboard exhaust manifold and there is water (quite a bit) in the exhaust ports (on top of the valves). I don't think there was any in the front cylinder, but not sure. Port side manifold is dry.

-Intake manifold comes of (what a PITA), nothing major noticed, little bits of milky oil here and there above the cylinders.

-Valve covers didn't hide anything, no soft serve, just bits of milky oil here an there, in the low spots.

-Heads come off, Lots of water in the Starboard cylinders, and light surface rust on the pistons. Head Gaskets Look fine!

-I looked over the block, heads and manifolds, no cracks that I can see. exhaust manifold is quite corroded, but she's a salt water boat.


It was a great day for pulling a motor though, no sweating and still tee-shirt weather. It got me excited for the upcoming engine swap on the girlfriends '71 MGB.

Thanks for the reply!

-Dewey

 

[boattoy]

Re: Motor Strip down

Re: Motor Strip down

My 4.3 had the Same water in oil issues and the exhaust was getting to hot. I replaced the manifolds and risers and now there is no more water in oil. I've put about 4 hours on motor since then. Mine does have a little vapor coming out of breather since its still burning off some of the water

 

[jdeeewp]

Block storage

Block storage

Still getting around to testing the manifolds, but i need to decide on my next action.

If its the manifolds...
Should i reassemble engine and run it, or store the engine for the winter?


I was thinking of storing all the parts with a pail of damp rid, in a plastic tote, sealed with packing tape. hopefully locking out all moisture in the air.
Similar plan for the engine block, only I would use 4 ml plastic and leave it on the stand.

My main concern is the water in and around the engine, I don't want moisture in the air rusting the internals of the engine.

If i re-assemble there is still the concern that I can't get all the moisture out of the crank case.
How long would i have to run it?

Thanks for the help!