Redoing Cylinder Head on a 2002 Glastron 18

[Rich_V174SS]

A job I started yesterday, a poor running engine (Volvo Penta 3.0 GM) no compression on cylinder #4 and evidence of water in both #3 and #4. In under 2 hours I had it apart and the cylinder head removed. I can't understand why it wouldn't run right.

[75starflight]

wow that thing has ingested a lot of water!

[Rich_V174SS]

This happened mid season last summer. The customer told me the engine overheated then all his problems started happening. The head gasket looked ok but there was water in the exhaust manifold which led me to think the manifold/elbow joint failed and caused it to ingest water into the two rear cylinders. I'm taking the head to the machine shop tomorrow and I'll be inspecting the manifold for any problems.

[dorelse]

What does the white chalky stuff mean?  (I get the other 2 cyl's have water in them...)

[Rich_V174SS]

That would be my consensus too, only not as bad.

[Rosscoe]

Must have been running real nice! Was that valve stuck open?

[Rich_V174SS]

Yep, rusted stuck valve, hence the no compression on cylinder #4.

[california special]

dont u love that stud they put in the exhaust manifold between the y pipe?

[Rich_V174SS]

Yeah, that was fun getting that out. What I did was lift the head with the manifold together then once high enough I slid the manifold off the stud. After that removing the stud was easy. I got the head back from the machine shop, it looks brand new.