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Happiness Is A Fresh Main Shaft Seal

Discussion in 'Norton Commando Motorcycles (Classic)' started by Tornado, Sep 22, 2018.

  1. Tornado

    Tornado VIP MEMBER

    Dec 5, 2017
    Did the seal yesterday after a primary full of engine oil overflowing out the drive sprocket opening, getting over everything.
    The bike had wet sumped to below the oil tank pick up sieve. I kicked over engine 20-30 times to help start the return feed and added just a bit of fresh oil to cover the sieve before real start up. Ran good but noted the spew some 50 miles later.

    Here's what the 44+ year old seal looked like:
    Completely blown in half as I found in shaft.

    Put fresh one in (same OEM type, not a full plastic type some recommend) and used Locktite 515 gasket sealant tween metal flange and casing. This stuff is basically Krazy glue with a filler. Should be as good as JB Weld epoxy some advocate here.
  2. gtiller

    gtiller VIP MEMBER

    Nov 5, 2012
    @Tornado I think you’ve got your monies worth out of the old oil seal!
    Tornado likes this.

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