Скачать или смотреть Replacing Water Pump Impeller in Mercruiser Alpha 1 Stern Drive - 250 HP 4.5 Liter V6

It's time to inspect and replace the water pump impeller in my Mercruiser Alpha 1 Gen 2 stern drive. This is in a 2018 Chaparral with a 250 HP 4.5 liter V6. I am using a Mercury impeller replacement kit part number 47-8M0100526 that includes the impeller, gaskets and seals to complete the job. I must remove the lower unit or lower gear case, disassemble the water pump to remove the impeller, reassemble and reinstall the lower unit.

NOTE: THIS VIDEO IS AN UPDATE TO A PREVIOUS ONE TO CORRECT AN ERROR IN REASSEMBLY PROCESS

I must be careful regarding safety because the parts are heavy and the water pump is critical to operation. If the pump does not operate correctly, the engine can overheat and be damaged and leave the boat stranded.
 
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