oil/dust seal leaking.

Discussion in 'Mechanic and Repair' started by TClawn, May 3, 2005.

  1. TClawn

    TClawn LawnSite Silver Member
    Messages: 2,036

    this is on a kohler command CV18s.

    the oil seal (where the power take off comes through the oil pan) is leaking.

    how do I go about changing the seal? do I have to take the oil pan off? or can I do it with it on there? do I need an special tools to do this? thanks.
     
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    I replace these seals all the time,I use a automotive seal popper which is probably something you don't have. A standard screw driver will do,With the engine on its side take the screw driver and insert it at a angel with the handle a couple inches from the pan between the inner part of the seal and the crank,LIGHTLY tap the driver with a small hammer untill its under the metal lip of the seal and push the handle down against the pan. Do this in several places around the seal and one of the times will pop it out of the pan.
    To install the new seal I use a piece of PVC pipe the same size as the seal with a cap on one end.
    (Be careful not to gouge the crankshaft)
    I use this method on all engines.




    14yr Briggs & Stratton Master Service Technician
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  3. TClawn

    TClawn LawnSite Silver Member
    Messages: 2,036

    so the screw driver goes between the inner part of the seal and the pto?
     
  4. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    (blade)
    You are calling the pto the crankshaft are you not ? one side of the driver will be facing the seal and the other side will be facing the crankshaft !
    (blade)
     
  5. TClawn

    TClawn LawnSite Silver Member
    Messages: 2,036

    well isn't the crankshaft and the pto (power take off) the same thing? what I am trying to get at, is that the screw driver goes on the INSIDE of the seal, and not on the perimeter, right?
     
  6. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    Yes they are I just wanted to make sure I was on the same page with you,and yes put it on the inside.
     
  7. TClawn

    TClawn LawnSite Silver Member
    Messages: 2,036

    thanks a lot.
     
  8. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    Glad to be of help :cool2:
     
  9. RoyZ

    RoyZ LawnSite Member
    Messages: 2

     
  10. RoyZ

    RoyZ LawnSite Member
    Messages: 2

    Sounds like some great info there! I'm new here and wish I had read this post before I pulled the oil pan/rear housing off my mower. I'm dealing with a major oil loss to the tune of one quart in three hours. I just found that the seal I ordered is incorrect and I need help determining what to order. I have a Z-Master with engine ch740s-0054 or so I'm told. The mower is a model 74246 ser. 250000488. All of the decals on the engine seem to have been pressure washed off. I've ordered two seals now and they are too small on both the inner and outer dimension. Hoping some of the experienced folks out there can give me a clue
     

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