Is it possible/common for a grenaded impeller to warp the housing? Boat is a 2007 Centurion Typhoon with the 5.7 Black Scorpion. Impeller shredded on the trailer during spring cleaning and setup—no problem, I thought. Cleaned out the housing (have all 8 splines) and found no debris in the transmission cooler or anywhere else downstream. Backflushed everything I could. Installed new impeller and upgraded plastic pump housing cover with the wear plate. Also R&R’d the thermostat while I was at it.
The issue is that the impeller is not priming/pumping water. With the engine running and water flowing into the pump (installed T and hose fitting in the output of the V-drive), there’s no water reaching the transmission cooler. This tells me it’s one of two things:
1. an ill-fitting impeller
2. the pump housing was warped when the original impeller shredded
Is there anything else I should be checking? I DO get a lot of water flowing out the thru-hull intake as it goes backwards through the v-drive, but the pump still wasn’t drawing water when in the lake, either. I have NOT tried to rev the engine to get the pump to prime, but maybe that’s the next test? I certainly don’t want to overheat again.
I’m at my wit’s end trying to figure this out and get us on the water. Appreciate any other ideas you have.
*** Cross-posted @ Centurion Crew ***
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