SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: mstrader77 on October 07, 2013, 08:08:43 PM
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I recently bought a 1973 19' Fiberform Jet (Malibu?). The engine is a Berkeley Pack-a-jet. There is water leaking out of the water pump weep hole when running. Is there a source for marine water pumps for the 455? I can't seem to find them anywhere. Thanks.
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most jets do not use a water pump. that big white thing hanging off the back of the boat is a giant water pump. you should have a block off plate where the water pump would usually be. then its just routing a couple hoses from the pump, to a valve, thru the exhaust manifolds, into the motor and back out the exhaust for cooling.
(https://www.socaljetboats.com/index.php?action=dlattach;topic=2611.0;attach=10256;image)
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You can use an automotive pump. Figure for a 455 equipped 1975 Olds station wagon or Delta 88.
Just put the water pump back on and drive it like you stole it.
Jmho.
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I am thinking of throwing a cheap water pump on for now. Has anyone ever used an automotive pump? How long would it last? It appears to be my only option other than removing the pump. I wouldn't mind removing the pump, but all the cooling diagrams I see involve running the lines through the exhaust first, then into the motor. I have the original Berkeley logs with only one water input in the front and the only outlet is out the risers into the threw hulls. Can this setup be made to work?
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Do you have pic of this water pump
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I am thinking of throwing a cheap water pump on for now. Has anyone ever used an automotive pump? How long would it last? It appears to be my only option other than removing the pump. I wouldn't mind removing the pump, but all the cooling diagrams I see involve running the lines through the exhaust first, then into the motor. I have the original Berkeley logs with only one water input in the front and the only outlet is out the risers into the threw hulls. Can this setup be made to work?
There is virtually no difference in an automotive pump vs. a marine one. Not even sure a marine specific Olds pump exists. It should last several years.
In all honesty they run more consistent temperatures with a circulation pump. Plus you wont have to worry about belts and pulleys....
What we call a two-fer. 8)