Reply To: Leak down test 7.5

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March 21, 2021 at 8:45 am #234474
Don
Participant

    US Member

    Well, these “clam shell” gearcases are pretty tough to seal properly. Get a big bucket that you can submerge the gearcase totally under water… Set the pressure at abot 5-7PSI and submerge it in the water…Look for bubbles rotating the shafts and shifting the gears…
    CAUTION:
    You will need to have the impeller housing in place (no impeller) and screwed down securely before pressure testing. The pressure will just push the upper bushing/seal hsg off its gasket if not secured properly…