Hi guys, new here!
I've got a pretty weird problem with my 15hp evinrude late 80's or early 90's iirc.
It has had problems with cooling, the waterways were probably filled with salt residue, the engine was 99% used in the sea, it has been flushed out regularly, but it was sitting up for a few years due to lack of funds
The waterways were cleared with diesel by my mechanic and it worked fine for a few days, then it stopped pumping water again
I tried using a foot pump up the telltale pipe to force air through the system, and it is pumping water again, but if I have it running for about 2 minutes the telltale starts to get pretty warm, as does the block.I haven't had it running for any longer than that incase blows up!
The engine was fully serviced not long ago.
Any help is appreciated!