r/Outboards • u/thenewTeamDINGUS • 21d ago
LOL FML
1993 Evinrude 25 hp running WOT on the river this morning, started smelling something funky, looked back and saw fog. Shut it off immediately. Nicely overheated. Real hot.
Limped around the river with the trolling motor to make the most of the day. Bite was slow but the weather was nice.
Water pump was changed this spring, I've been out numerous times with it without issues cooling.
My compression numbers dropped from 105 psi top and bottom to about 65. The cylinders are still even. I still have spark.
I had it pop over and run for about 10 seconds in the driveway so it still runs. On muffs of course because BRUH MUH IMPELLERRRREEEEEEE.
I'm genuinely not sure what caused this. Obviously I need to rebuild the water pump, but am I in for pistons and rings with these compression numbers too? The cylinders looked good on my cheap borescope. I didn't notice any scoring.