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Front end gear box seal


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  • Front end gear box seal

    Had a bottom seal blow on a sweep gear box. Happen towards the end on league. Gear box still ran with no oil. Looking at gearbox and seal I'm not seeing a reason for failure outside of looks like no sealant on the cap. Could I reseal the bottom cap and put the gearbox back in services
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  • #2
    Is the circlip in the right position ? It looks loose on the second picture.


    • #3
      The gearboxes have a venting port on top as part of the cap, It allows the pressure inside the gearbox to remain stabile as the gearbox heats up from running. If they get clogged (or the check ball inside gets stuck) then the pressure inside the gearbox can possibly build up enough to pop the expansion plug out.

      As long as the plug isn't deformed your should be able to reuse it but I would put a new one on anyway. And use a gasket sealant like the one that ships with the rebuild kits.

      -- Larry


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