350 front crank seal

Discussion in 'Small Block Tech' started by 72Skylark!, Jan 6, 2019.

  1. 72Skylark!

    72Skylark! New Member

    Can someone please advise me on the installation of a front crank seal. I have a gasket kit with a rope gasket and I also have the type that looks like a grease seal. I'm not sure which one to use, my concern with the grease seal type is the three indentations in the timing cover where the seal goes. I'm afraid that if I just press the seal in, the outer rubber of the seal will get damaged. I've never installed a rope seal and cannot find any information anywhere.

    Any advice will be greatly appreciated.
     

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  2. alec296

    alec296 i need another buick

    those indentions wont hurt the seal. but check where seal rides on harmonic balancer after installation, as rubber seal can get shredded by knurl on balancer if it contacts it. you may need a speedisleeve for balancer then.
    the rope seal you would need to put back in the metal retainer and cramp the rope seal in, leaving the ends toward the top of the cover. then oil it up.
     
  3. hugger

    hugger Well-Known Member

    You can ease the stake marks down then apply a thin film of sealer on tbe od of seal then install
     
  4. telriv

    telriv Well-Known Member

    Remove those 3 indentations on the inside surface with a Dremel tool to make a smooth transition when pressing the seal into place or else you stand the chance of distorting the seal. Clean the seal surface sealing area with a wire brush on the end of a Dremel tool. Apply a finger swipe of silicone sealer to the outside diameter of the seal to help prevent leakage around the outside diameter of the seal/timing case cover & also to help aid in the installation of the seal. CAREFULLY install the seal trying not to distort it. ALSO as mentioned if there is any kind of non smooth surface on the harmonic balancer hub get & install a Readi-Sleeve.

    Tom T.
     
    Mark Demko likes this.
  5. BuickV8Mike

    BuickV8Mike SD Buick Fan

    Do you have some dial calipers? When I pressed mine in I didn't get it fully seated . I'm sure to bore had some taper which caused me to not get it fully seated.
     
  6. Mark Demko

    Mark Demko Well-Known Member

    That's what I do, very carefully file those stake marks level with the rest of the bore.
     
  7. 72Skylark!

    72Skylark! New Member

    Thanks for the help guys!!!
     

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