Raw Sea Water Pump Upgrade – Ford Lehman 120HP

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In this video, I replace/upgrade the OEM Jabsco raw seawater pump with a Johnson ordered from American Diesel Corp. The upgraded pump is a one-piece design, increasing reliability. The AD kit includes a longer oil cooler hose and a small metal pin to block pressurized hot oil, preventing leaks around the gasket. Mating surfaces and the pin get coated with Permatex #2 Sealant.

Related Links

Raw Seawater Pump Upgrade Ford Lehman 120HP Marine Diesel Engine

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