Seal Question - not the singer or mammal

Discussion in 'Mechanic and Repair' started by bob, Dec 13, 2011.

  1. bob

    bob LawnSite Platinum Member
    from DE
    Messages: 4,260

    I'm replacing the crank shaft leaking seal on my mower. Should I coat the outer edge of the new seal with oil before installation? I saw this on an automitive repair show.

    272 seal 002.jpg
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    No, Install dry.....
  3. piston slapper

    piston slapper LawnSite Platinum Member
    Messages: 4,319

    Ditto. Restrorob.
    If you lube the outer edge it will pop back out.

    A little butter for that biscuit, Rob ?
    Posted via Mobile Device
  4. BigFish

    BigFish LawnSite Gold Member
    Messages: 3,938

    I always install seals with a fingertip smear of sealer on the OD. Usually Permatex non hardening.
    It's also a good idea to lube the lip/s with some grease before the install.

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