Update:
Got new EM gaskets, pump rebuilt, fresh oil.
Is there a difference of running it on the hose vs water? I ran it before leaving for a good 15 minutes and oil was still oil color.
After 30 min ride, I beach it and find white fluid on oil cap. Check dipstick and oil is tan but still thin. We spent 4 hrs out in the water which was great.
Boat ran like it should. Gets on plane, cruises at 30mph, turns 7000k. I got 35 at one point. The new pump bearings made it sound so much quieter.
When boat was up trailer the whole bottom and under swim platform was covered in black soot.
It got me thinking of all the fluids I poured into crack case during my previous oil transfusion. Boat was never ran hot during oil transfusion as EM were off. As good as the oil extractor is I'm sure I left some contaminated oil. It mixed with new oil and burned off the MM/Seaform during todays outing.
I stopped at Discount for crank case flush bottle (diesel and kerosene) on the way back home. Poured it in and starting flushing engine and let so called treatment work
Extracted contaminated oil and flushed again with 5gal and have clean oil running through extractor. The contaminated oil did not look like before.
It still had oil consistency but darker shade of brown and not so translucent. Almost dirty like.
Going to run it tomorrow on hose again to see if changes colors. Will change oil and filter again ready go back out Friday to test a 3rd time.
If I can't get oil issue solved is off to dealer to have head removed and pressure checked for leaks. I've read and seen the cracks by the valve due to poor casting. Hopefully they can read ECM and see if there was ever an over heat code and can give me history about boat.
Boat has 140hrs and it runs and looks great. I don't want to feel discouraged or think it something more serious. I'll keeping changing oil if it continues to run like it did and pray oil gets cleaner every outing. I just can't wait in b/w outings.
I tried to do leak down test but was getting wrong readings. After failing on
#3, I did other cyl's and got same failing result.
Finding TDC is a little more difficult than I have been trying according to service manual. I'll let the pros look at it if oil does not get clean at neat outing