Engines run great. boat handles awesome.

4 or 5 days ago when we drove it last, I thought there was a problem with the engines creating to much condensation. They were building up a lot of moisture under the valve covers, but nothing in the crankcase...

Added T stats, put it in the water today with new guages and sender, Now I am generating water.

1 engine was obvious wen it came out of the water. oil pan was a quart heavy and looked like a chocolate milshake. The other engine looked fine with condensation on the dipstick, but oil looked pretty clear. after it sat for a couple hours, I drained the pan and the second engine also had water in the pan.

Pulled coolers, pressure checked, no leaks.

Keep in mind that the engines run really strong. Headers were P checked before instalation.

Intakes were double checked, No water leakse there.

The T stats are letting the engines build up more water pressure than before and this is obviously triggering the problem to be worse, but where is the problem??

Engines have been sitting idle for 4 years. Never had water in them until they were recently dynoed. Never even had the valves opened until they were dynoed. No problems with water showed up during dyno runs.

The only thinkg I can think of at this point is to start tearing them down until I find a leak, but what can it be.

Head gaskets?? That problem should have showed up prior to now.....

What in the rigging can cause this to happen.

I have never had a water problem in an engine and I have built quite a few of them???

God thing I don;t have much hair to pull out, because this one is just killing me.

??????????????

Sorry to hear about yoru troubles. Although 1 may seem worse than the other, it is unusual to see it happen to both engines!! Since you say the oil coolers are good, I would start be pulling all the plugs and look for any signs of water. That may narrow down your search. If the plugs are either wet or washed clean, at least you will know the water is entering via the cylinders and not just pumping into the engine, say through an intake gasket. Next I would pull the headers and check for signs of water. If you dont find anything, I would start taking the engines apart. Good luck..

since both engines are doing it and I suspect both were built at the same time, wrong head gaskets?

That is what we are thinking on this end now??? Not realy enough time to tear them down and change everything out before KW, so I gues I'll worry about it in a couple weeks.

How much water pressure are you running?

Do you have oil temp thermostats?

If no oil t-stats, are you using very large coolers with cold lake water temp? I had a problem years ago running large coolers running in the spring on Lake Michigan and generated so much condensation (two motors, both doing same thing) I thought I had blown head gaskets. I tore the motors down and found nothing wrong. Changed the oil cooler setup and all was good.

Kris Vogt

we were thinking about bypassing the coolers for a test run..... But while we were out running,,, the oil temp was holding at 190..

Reversion? What are the cam specs?

Like has been said above, head gasket, intake gasket, oil cooler, reversion.
Reversion will usually just trash your oil and condensate. It should not raise the oil level.

this could explain why.........

Reversion,,try and run the water in the pipes over board if you can..did the cylinder heads have valve guides put in them??