Good day everyone, I'm new in the boating world and have an issue with my generator. I have a Carver 38 year 1990 and inside original generator Kohler model 9C63. the generator was working well and two days ago while on a voyage we went through 45 locks and the last lock was a rail lock where they take the boat out of the water and rail it to the next lake. Since then I've been having issues with the generator, it start really well runs between 5 min to 45 min and then stops. then it starts again and stops after about 1 minute. It looks like it is over heating. Is the I can see there is a pipe with a valve at the bottom of the hull looks like it is cooled by the water? if so how do I Bleed the line to get the water going in to cool it?

Since the day they took to boat out of the water I'm also having issues with the air conditioning. I turn it on and I get message STAND BY a few seconds after the air conditioning starts and a few second after I get the message FLT DLY HIGH PS.

I'm assuming again it has something to do with the boat being taken out of the water, how do I resolve this. It was working before the lock system.

I did go down under where the motors are and found 6 valves connected at the bottom of the hull. I tried to close them and open them but the problem is out of the 6 I was only able to open or close three, the other are all seized up and I mean can even bring the handle down, I thought I was going to break one so I stopped.

hopefully someone will be able to help.

thanks in advance.
RS