Stripped Threads on OEM Jabsco Head Pump


Tag: head

After reading the May issue of Mainsheet, Australian C-320 owner Mike Cole, Mio Dio, #421 passed on this tip applicable to stripped threads or broken bosses on the OEM Jabsco Head Pump, a common occurrence when getting a bit assertive in reassembly. Mike writes:

Some years ago I also over tightened 2 of the screws holding the pump top and broke off the raised bosses. I didn't replace the body assembly but used a 1/8 inch drill and drilled thru the pump top and body top flange. I then inserted 1/8 inch bolts long enough to assemble with a lock nut on the underside----it works fine. Underneath each of those raised bosses there is a cavity which I think was probably formed when the bosses were pushed upwards during manufacture--the lock nut sits neatly in the cavity. I think they should have been made that way originally not using the self tapping screws originally supplied.


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