Very old bunton walk bhind!

Discussion in 'Lawn Mowing' started by Evan528, Apr 8, 2001.

  1. Evan528

    Evan528 LawnSite Silver Member
    Messages: 2,144

    Yesterday I bought a old bunton 48" walk behind with a 12.5 kawasaki for 300 bucks! This mower starts in 2 pulls and runs very good. It does need some work though which I plan to do on rainy days. Today since its raining I decided to take the far right spindel of to prep the machine to a new one... I unbolted everything but I can not get the belt pulley dinsconected form the spindel... can anybody help me? Once i get this mower all fixed up with gonna be a champ. These old commercial mowers weigh half what new commerical mowers weigh. Even if I put 1,000 bucks into this machine and completly rebuild it I feel its worth it over a new mower because of its light weight! Thanks for your help! Jason2 this mower is almost exact to the old bobcat you recently bebuilt! Im sure you can help...

    PS. This machine also needs a new muffler! kawasaki is out of there mind... 90 bucks!!!

    [Edited by Evan528 on 04-08-2001 at 03:34 PM]
  2. Guido

    Guido LawnSite Silver Member
    Messages: 2,087

    The one thing that I will always remember was when I worked for my neighbor here and there he had a 15 year old bunton 48" belt and a brand new scag 48" hydro. Our pick every guessed it, we would fight over the old bunton!!(believe it or not ;) )

    It was so quiet you could here that awesome sound of the grass cutting. It was a really smooth mower for its age.

    Good Luck with it, I'm sure you'll be happy.

    Sorry I can't help you with the spindle. :(
  3. Evan528

    Evan528 LawnSite Silver Member
    Messages: 2,144

    Guido, this Bunton is at least 15 years old! Ill take a picture and post is later on!
  4. jason2

    jason2 LawnSite Member
    Messages: 243


    Congrats on your new Bunton! Those old Ransomes/Bobcat/Bunton's are sure overbuilt. I haven't had the pulleys off of my spindles. So I can't help you there. Still haven't finished mine yet. It was moved to the backburner last year. Since I have no shop I didn't really want to work on it outside this winter. Once the spring cleanups slow down I'll probably finish it up. I built an OCDC for my Lazer this weekend so maybe next weekend if it's rainy I'll get back to the Bobcat.

    Post some pics if you get the chance. I'd love to see your new toy.
  5. Dillon

    Dillon LawnSite Member
    Messages: 32

    Evan, You need a gear puller to get the pully off the spindle. If you unmounted the spindle from the deck remount it. Take the blade bolt put it thru the top of the spindle, so that the head of the bolt is on top.The gear puller has 2 or 3 jaws that mount around the pulley and a center bolt that will mount on top of the blade bolt. Once you have the gear puller it's pretty self explanatory from there. Hope this helps.
  6. Jason Pallas

    Jason Pallas LawnSite Bronze Member
    Messages: 1,335

    STOP! Before you use the gear pulley, there's one thing you need to do - or you'll cause heavy damage. I'm very familiar with these machines. The pulley has a set of screws/allen wrench style hex screws that holds the pulley in place on the spindle. There are almost always two - one goes directly into the lead keyway on the spindle, the other is at a 90 degree angle on the pulley to that (i.e. 3 or 9 o'clock). You access these screws by feel - by putting an allen wrench in the belt groove of the pulley and poking around. I think most are 5/16 hex. A bit of advice - these screws strip easily (the hex). Use lots of WD-40/bolt loosener and a very sharp/new allen wrench. Because you can't see these screws, this job can be real difficult if the screws are stripped/rusted in. You can't drill them out if they're frozen there - because you can't get at them with a drill. Heating them up is also a marginal operation at best.
    After you get the screws loose, use the 3 jaw gear puller to get the pulley off as described by Dillon. Do remount the spindle to the deck before trying all this - it'll make the job much easier. Good luck, if you need more help, don't hesitate to ask, I change (and re-build ) about 6 of these spindles every week.
  7. Runner

    Runner LawnSite Fanatic
    Messages: 13,497

    Thanks, Jason. You beat me to it, I was going to tell him the same thing. I also own two of these machines; they are the John Deeres, but that was what Deere was using back in '83 and '84. One other thing to look out for on these machines is the snaprings on the spindles that hold them up in the housings. They have a tendency to wear out and loosen up, allowing the spindle to drop, resulting in an uneven cut. Some times, you may even have to clean the snapring groove out a little with the hacksaw to deepen it a bit. This seems to help.
  8. snow

    snow Banned
    Messages: 114

    Look in Evan's signature and click on the link to see the photo of his bunton.


  9. Jason Pallas

    Jason Pallas LawnSite Bronze Member
    Messages: 1,335

    Runner - that's a good idea to keep those snap rings in place. I've had that same problem too - I'm gonna regroove the sprindles with a hacksaw. Never thought of that -THANKS.
  10. Evan528

    Evan528 LawnSite Silver Member
    Messages: 2,144

    Went to the dealer today to order the new spindal assembly. Turns out this mower is a bobcat not a Bunton. This mower has been painted so many times and is so old there are no markings! It looked like a bobcat to me but I took the guys word who I bought it from that it was a bunton. Im glad I didnt go ahead and order a bunton spindal out of a parts catalague ;) ! I didnt take the spindel off myself, my neighbor down the street is a handy man and said he would take care of it. When I came in form work yesterday it was done! today I installed a new muffler and changed all the filters since it was raining. Parts sure are expensive for this mower!! I hope to have it up and running like new by friday!

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