Help changing my motor !!!

Discussion in 'Mechanic and Repair' started by Amco Landscaping, Sep 7, 2006.

  1. Amco Landscaping

    Amco Landscaping LawnSite Member
    Posts: 80

    I am trying to change my motor on my 48" wb bobcat and i need to know how to take the pulleys of the shaft of the motor. Everytime i turn the nut on the bottom the shaft turns also. I dont have an impact wrench any other ideas?

  2. pugs

    pugs LawnSite Gold Member
    Posts: 3,022

    I would suggest investing in an impact wrench.
  3. khouse

    khouse LawnSite Bronze Member
    Posts: 1,465

    can you lock the flywheel? can you get a socket on the flywheel bolt to counter your wrench on the pto side.
  4. Amco Landscaping

    Amco Landscaping LawnSite Member
    Posts: 80

    ok I got the nut off the end now i am having trouble getthiing the pulleys and clutch off the shaft? they seem to be loose and slide up and down on the shaft but something seems to stop it from coming off. any clues?


    I MOW ALONE LawnSite Bronze Member
    Posts: 1,904

    the clutch should slip right off and the pulley has a set screw in it that you have to remove.
  6. J&R Landscaping

    J&R Landscaping LawnSite Fanatic
    Posts: 5,096

    It always helps to soak the $hit out of them pulleys before you remove them. Just make sure to make a note of the clearnce of the pulley before you remove it!
  7. fly-4-fun

    fly-4-fun LawnSite Member
    Posts: 0

    There might be a burr on the shaft not allowing the clutch to slide off, check that and file the burrs off the crankshaft. That will allow all the parts to slide off.
  8. ChadsLawn

    ChadsLawn LawnSite Bronze Member
    Posts: 1,110

    is it a variable speed clutch? If so there maybe a C clip holding it on. M y 36 has a C clip after the nut.

    Electric? Do said above check for burrs.
  9. Dirty Water

    Dirty Water LawnSite Fanatic
    Posts: 6,799

    Sometimes pulleys will have 3 set screws in them that you can tighten and it will pop it off the shaft.

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