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'01 246 W/8.1GSi wrote: Sun Jun 16, 2019 3:30 pm I've been getting an intermittent alarm beeping for awhile now but not showing an over temp issues. Sometimes I could go out for a ride and no alarm, sometimes it comes on after 30 minutes, sometimes after 5 minutes and other times right away. The last time it go hot and went into limp mood. So I replaced impeller and t-stat today but still overheating. All the blades were gone on impeller. Captains Call on there’s no water coming out through hull exhaust. I pulled the lower hose on the pump and blew in one of the hoses from the T-sat and a lot of blades came out, but no where else. I ran a hose out to my boat and ran water through every hose I could find and or get to. There appears to be no obstructions in the engine. I ran the water through the top hose at the pump and water was coming out the lower drive, but slowly. While doing this I put lower unit in the water and when I removed the water hose, water continued to come out the hose by the pump. I think it was siphoning from the lake and did not stop until I raised the hose up. So it there appears there’s no blockage there. But when I hooked up the muffs there was no flow at all from any of the hoses. I hooked everything back up and ran the engine with the muffs on and no flow any where.

'01 246 W/8.1GSi wrote: Sun Jun 16, 2019 3:30 pm I've been getting an intermittent alarm beeping for awhile now but not showing an over temp issues. Sometimes I could go out for a ride and no alarm, sometimes it comes on after 30 minutes, sometimes after 5 minutes and other times right away. The last time it go hot and went into limp mood. So I replaced impeller and t-stat today but still overheating. All the blades were gone on impeller. Captains Call on there’s no water coming out through hull exhaust. I pulled the lower hose on the pump and blew in one of the hoses from the T-sat and a lot of blades came out, but no where else. I ran a hose out to my boat and ran water through every hose I could find and or get to. There appears to be no obstructions in the engine. I ran the water through the top hose at the pump and water was coming out the lower drive, but slowly. While doing this I put lower unit in the water and when I removed the water hose, water continued to come out the hose by the pump. I think it was siphoning from the lake and did not stop until I raised the hose up. So it there appears there’s no blockage there. But when I hooked up the muffs there was no flow at all from any of the hoses. I hooked everything back up and ran the engine with the muffs on and no flow any where.

Big Block Power wrote: Tue Jun 25, 2019 9:32 pm If your impeller came apart your blockage is after that not before that.

Big Block Power wrote: Sun Jun 16, 2019 3:36 pm There is a power steering cooler on the starboard side rear of the engine. The cool fuel pump, the manifolds, yep plenty of spots for the pieces to get stuck