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Old 04-25-2021, 09:30 PM
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ndutton ndutton is offline
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  1. Relocate the pump: More like abandon the inaccessible engine mounted pump and install a PTO pedestal mounted pump driven off the flywheel, same as the Moyer fresh water cooling system uses. There is nothing to re-engineer, all the parts are available. If I were considering this, I'd remove the original pump for good and fashion a blank plate in its place, gasketed of course.
  2. Electric raw water pump: I'll repeat the point Ron made, depending on exhaust type you may require proportionate flow to the engine RPM and corresponding exhaust flow. If your exhaust is a straight pipe, stand pipe or water jacketed, no problem with full flow regardless of engine RPM. If it's a waterlift, proportionate flow becomes critical.
  3. Automotive cooling system with a radiator: You won't have sufficient air flow to keep up with the engine heat. It's not like your radiator is cruising down the highway with 80 MPH worth of air running through it.
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1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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