Severe condensation

[Tail Chaser 661]

This is the second time this happened. Doing multiday trips on the water.
I get water in the valve covers. Turns all pasty white on the filler cap.

I show no water on the dip stick or signs of water in the oil.
But the oil filters oil is a light brown not quite milky but looks like a water contamination to me.

Someone told me this is normal. Happens to there race boat every time.
Last time this happened I showed a sample of the whiteish brown oil to a mechanic..
He said, I was just overdo on a oil change.
I had just dumped the oil out of my filter. Thought it was full of the nasty looking oil. Looks like maybe filter was 50% full of the nasty stuff.

Can water work its way into the oil through a leaking riser?
Or is this just maybe condensation problem?
Ive had a seeping riser forever. Outside only hopefully.
Four attempts at a fix, But still seeps.

My next thread may be Best Quality aftermarket risers.
Too much work dropping in my 8.1 at this time.

 

[douglee25]

Does you engine have a pcv valve or a breather assembly? If it's clogged or not working correctly, the gases will not be vented properly from your valve cover area.

Another thing to do is a pressure check. You could have a bad head gasket or leaky riser gasket.

Doug

 

[Tail Chaser 661]

Here's the contaminated oil pics

 

[Tail Chaser 661]

Does you engine have a pcv valve or a breather assembly? If it's clogged or not working correctly, the gases will not be vented properly from your valve cover area.

Another thing to do is a pressure check. You could have a bad head gasket or leaky riser gasket.

Doug

PCV valve is good.
I do have a leaky riser.

 

[douglee25]

I would go towards the leaky riser. You could risk hydrolocking the engine as well.

That oil definitely doesn't look good.

Doug

 

[tobnpr]

What kind of (4) attempts were made at fixing the leaking riser? Did you replace the manifolds/risers with new?

If your mechanic looked at that oil and just said you were due for an oil change, you need to find a new mechanic. That's definitely water-contaminated, and I wouldn't want that stuff lubricating my engines.

I've done several replacements of manifolds and risers and never had an issue with leaking. Are you trying to re-use old ones, or are you having problems with the new ones leaking?

As Doug said, that riser could "let go" and dump a bunch of water- then it's new engine time. I wouldn't run it until it's fixed.

 

[Tail Chaser 661]

Ive changed the riser gasket three times.
Resurfaced the risers gasket surface once.
Just keeps developing a weep.

Normally I would have replaced everything.
But I knew I was going to repower. So I kept trying gasket changes with different sealers to stop the leak.
You cant seal a warped riser. :huh::lol:
At least I didnt pay someone 100.00 hr with the same outcome or worse. :wow:

I met three boaters that mentioned what a genius this one Mechanic is.
I tried giving him the benefit of the doubt.
(Maybe take a short break from some wrench turning)
I showed him water contaminated oil two years ago. He said it was only dirty :huh: BS
Two years ago he said he charges 1000.00 for a repower.
Buy my new engine. Now he wants 2300.00 for the repower.
Bought my engine hoist today, Like always, If I want it done right. Got to do it myself.
Thank goodness, Ive only had mechanics touch my stuff like 6 times in 36 yrs.

Thanks for the tips,
Your right, Theres no way i'm going to sea again with that riser. Ordering a new one on Monday.
Not replacing everything because I have another engine waiting to drop in.