impeller issues

I did preventive maintenance to change impeller myself - used non-OEM Sierra to replace previous Sierra impeller that lasted over 100 hours with no problems and no previous overheating. Boat alarmed (high temp) on 1st outing after changing impeller. Pulled belt and turned pump by hand and...

My new to me 2001 Sea Ray 380DA with Caterpillars 3126s ran at 180 degrees on plane for her first 12 hours of use. I put her in mud (at idle speed) coming into the new to me slip she is now in. Both engines overheated. Both sea strainers were packed, and I mean packed, full of black crude...

I have a 93 Sea Ray 240 Overnighter with 7.4 Merc with Bravo One drive. I was trying to winterize the boat engine myself and had problems getting the antifreeze to go into the drive, and I may have ran the motor too long without water. The motor started to overheat, so I shut it down and let...

Why does the impeller on the Kohler 5w need to be replaced so often. Seems very tight. is the an off brand impeller that works better