My 1971 38 commander is overheating it will cool down with more throttle but now that isn’t cooling enough it doesn’t show more than 225 on the temperature???? This is a new one for me!!?????

I have a 10 Kva gas Kohler gen 4 hours on rebuilt motor new rewound gen it already has a bad bearing we think the mechanic didn’t put it back on the motor right my friend I bought boat from had it re done he said it started shaking really bad before he shut it down it’s in my garage now I can see the gap in the bearing through the plate I removed on back now emergency services in Tulsa wants 700 dollars to trouble shoot it any ideas??????it almost sounds like I could buy a new diesel gen for the same price of all repairs on the one I have? I mean????????

This is my first vaccuflush head I replaced duck bills and bellows I have literally taken apart and put back together a dozen times still no pressure I finally heard a gurgling leak sound right on top of bellows I smeared Vaseline on all duck bills and bellows top still hearing the noise.i think my clamps on my bellows the c clamps is leaking from one side where clamps come together the Vaseline did not help.can(http://help.ca) I silicone the clamps all around and on top of clamps??this thing is making me lose my mind!!