Water/condensation in valve head cover area

[edp]

I have a 1999 4.3 liter mercuiser engine. I am getting a lot of condensation showing up in my valve head area. The problem isn't acting like a cracked block, I have no performance problems, there doesn't seem to be water/creamy oil on the dip stick, the oil level isn't rising with use and nothing leaking out of the block. Has anyone experienced a similar problem or have an idea where I should start looking first.

 

[Bondo]

Re: Water/condensation in valve head cover area

Has anyone experienced a similar problem or have an idea where I should start looking first.

You've Already Looked Far Enough..........<br />It's just Condensation.....Very Normal....<br />It's Nothing that a Boat Ride for about an hour, at Cruising rpms Won't Cure...... <br /><br />Oh Ya,<br />Welcome to iboats.com Forums.........

 

[DHPMARINE]

Re: Water/condensation in valve head cover area

While it is normal,it may be due to a poorly ventilated engine compartment.Or over insulated,to keep the noise down.<br />Some morning just open the cover,and look for the condensation.If you see lots,next try leaving the cover open a bit when not using the boat.<br />If you can cut down on this condensation,You won't have to pay me to replace your timing gear cover,oil pan,or rocker covers.<br />Todays boats are nice,but I feel the manufacturers<br />are dropping the ball in this aspect.<br /><br />DHP

 

[crazy charlie]

Re: Water/condensation in valve head cover area

Though a small amount is considered normal such as on the reverse side of the oil filler cap more than that may not be so normal.I had a creamy residue on the reverse side of my oil filler cap and took it for normal since that was the only residue there was.A year later I had to remove the valve cover to replace a retaining clip for a valve which was riding with the piston.A relatively simple repair.The mechanic wanted to pull the head to check the blind side of the valve.When i had the head checked it seemed fine until it was magnafluxed.There were a few cracks around a valve that were not even visable but it was recommended that I replace it.So I replaced it and guess what???I never saw another drop of cream anywhere again.It ran fine before and after so you never know.You certainly have more condensation than I did.Charlie

 

[Scaaty]

Re: Water/condensation in valve head cover area

I would go halfway between DHPMarine and Crazy Charlie. Open up and ventilate first, then see if it needs more.<br /> I also am a firm believer in ventilation. Rust never sleeps.