AD31P Overheating

[Flybrain]

My AD31P was running at about 90 degrees.

I had the boat out of the water for a month to have the drive and engine serviced. Also had the heat exchanger cover cleaned and refitted as it had a small leak.

When I launched the boat a few weeks ago it overheated as soon as the engine was put under load.
The engineers thought it was a thermostat problem or air in the system. But this hasn’t resolved the issue.
I don’t want them to waste too much of their time if anybody has had a similar problem?
Any help appreciated.
Can these engines be run for long periods with the thermostats removed?

 

[Scott Danforth]

check for flow.
check the sea ****
was the raw water pump serviced?

 

[Flybrain]

Thanks, impeller housing and exhaust elbow are cool to the touch.
Water comes in through the drive, could it be a squashed hose or something in that?
Raw water pump wasn’t serviced.

 

[Bondo]

Thanks, impeller housing and exhaust elbow are cool to the touch.
Water comes in through the drive, could it be a squashed hose or something in that?
Raw water pump wasn’t serviced.

Ayuh,...... Welcome Aboard,...... If the impeller wasn't changed, I'd start there,....

 

[Flybrain]

It was changed (just checked the paperwork)

 

[Scott Danforth]

It was changed (just checked the paperwork)

My guess the two hoses are swapped

 

[Flybrain]

My guess the two hoses are swapped

Thanks for the reply. Just checked and they aren’t swapped