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Broken Drive shaft???

Discussion in 'Rush/Switchback' started by NorthMoose, Oct 7, 2019.

  1. NorthMoose

    NorthMoose New Member

    Messages:
    8
    Location:
    Yellowknife
    Country:
    Canada
    Years Snowmobiling:
    20
    Snowmobile:
    2016 Polaris Switchback 800 Pro-S
    I have a 2016 Switchback 800 pro-s and on the last ride of the season I thought I snapped the drive chain as the machine stopped moving but both clutches and the brake caliper were spinning. I finally pulled the chain case cover last night and the chain and both sprockets are fine.

    i started it up and gave some gas, when the clutches engage both sprockets are spinning but the track doesn't move, when i looked underneath everything looks fine and when i hit the gas you can see the track just barely starts to move and then stops even as the RPM's increase.

    Anyone have any thoughts before I continue pulling it further apart?
     
  2.  
  3. MrSled

    MrSled Administrator Staff Member Admin

    Messages:
    825
    Location:
    Weston, WI
    Country:
    USA
    Years Snowmobiling:
    29
    Snowmobile:
    SideWinder
    Sounds like the lower drive shaft is sheared.
     
  4. NorthMoose

    NorthMoose New Member

    Messages:
    8
    Location:
    Yellowknife
    Country:
    Canada
    Years Snowmobiling:
    20
    Snowmobile:
    2016 Polaris Switchback 800 Pro-S
    Thanks, i have a feeling you are correct, i will continue the disassembly this weekend and let you know what i find out.
     
    MrSled likes this.
  5. MrSled

    MrSled Administrator Staff Member Admin

    Messages:
    825
    Location:
    Weston, WI
    Country:
    USA
    Years Snowmobiling:
    29
    Snowmobile:
    SideWinder
    Perfect!!
     
  6. NorthMoose

    NorthMoose New Member

    Messages:
    8
    Location:
    Yellowknife
    Country:
    Canada
    Years Snowmobiling:
    20
    Snowmobile:
    2016 Polaris Switchback 800 Pro-S
    So the cap that is welded into the housing on the gear side of the driveshaft had broken the welds and was spinning in the housing! drive 1.jpg drive 2.jpg drive 3.jpg
     
  7. MrSled

    MrSled Administrator Staff Member Admin

    Messages:
    825
    Location:
    Weston, WI
    Country:
    USA
    Years Snowmobiling:
    29
    Snowmobile:
    SideWinder
  8. NorthMoose

    NorthMoose New Member

    Messages:
    8
    Location:
    Yellowknife
    Country:
    Canada
    Years Snowmobiling:
    20
    Snowmobile:
    2016 Polaris Switchback 800 Pro-S
    I sent the pictures to Polaris to see if I can get some kind of replacement due to factory defect but I am not really expecting anything
     
  9. MrSled

    MrSled Administrator Staff Member Admin

    Messages:
    825
    Location:
    Weston, WI
    Country:
    USA
    Years Snowmobiling:
    29
    Snowmobile:
    SideWinder
    I would think they would help. If you have a good dealer, they may help as well.
     
  10. NorthMoose

    NorthMoose New Member

    Messages:
    8
    Location:
    Yellowknife
    Country:
    Canada
    Years Snowmobiling:
    20
    Snowmobile:
    2016 Polaris Switchback 800 Pro-S
    unfortunately the dealership here closed it’s doors three months after I bought this sled, the next closest one is 500 miles away.

    so far I haven’t gotten a lot of help from Polaris but hoping for something!
     
    MrSled likes this.
  11. MrSled

    MrSled Administrator Staff Member Admin

    Messages:
    825
    Location:
    Weston, WI
    Country:
    USA
    Years Snowmobiling:
    29
    Snowmobile:
    SideWinder
    Keep us posted and what happens.
     
  12. NorthMoose

    NorthMoose New Member

    Messages:
    8
    Location:
    Yellowknife
    Country:
    Canada
    Years Snowmobiling:
    20
    Snowmobile:
    2016 Polaris Switchback 800 Pro-S
    Polaris thanked me for the photos and said they would forward to their engineering department and that the warranty on the snowmobile was over and that the part would not be covered
     
  13. MrSled

    MrSled Administrator Staff Member Admin

    Messages:
    825
    Location:
    Weston, WI
    Country:
    USA
    Years Snowmobiling:
    29
    Snowmobile:
    SideWinder
    Well that blows!!
     
  14. Chiefcheese

    Chiefcheese Active Member

    Messages:
    231
    Location:
    Wisconsin
    Country:
    USA
    Years Snowmobiling:
    45+
    Snowmobile:
    15 Anny Rush 800, 16 PRR LE Switch 800
    First one I have heard of failing like that. My dealer would have found a way to get it replaced.
     
    MrSled likes this.
  15. NorthMoose

    NorthMoose New Member

    Messages:
    8
    Location:
    Yellowknife
    Country:
    Canada
    Years Snowmobiling:
    20
    Snowmobile:
    2016 Polaris Switchback 800 Pro-S
    The dealer where I lived closed down three months after I bought the sled and the next closest dealer is 500 miles away so I didn't have an option of going to a dealer, just with Polaris
     

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