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Swing Arm Bearings

Discussion in 'Stelvio Chat & Tech' started by Tracey, Feb 9, 2019.

  1. Tracey

    Tracey Just got it firing! GT Contributor

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    Location:
    Canton, OH
    With the winter in full swing in Ohio I have been performing maintenance on my 2014 Stelvio NTX with 24,000 miles. My fist full winter season with this bike. Adjusted valve lash, all fluids, spark plugs & boots, injector balance. Also had to replace rear break pump and pads, and a few broken bits hear and their.
    Surfing this forum I also followed some excellent suggestions for removing the carbon canister and cross connected the throttle bodies. Nordicnorms procedure for inspection and greasing the swing arm and shock linkage may have saved me some serious problems. After buying Todd's CARC wrench I was able to give it some much needed attention. My bearings wher dry and staring to form some rust. A good cleaning, inspection and ample grease and I'm good to go, just in time.

    I sent my ECU to Todd today for a reflash, I'm looking forward to the riding season.

    Thanks to the people on this forum for taking the time to post suggestions and procedures. They have been a big help to me. Yes, I have contributed and will do so again.
     
  2. jdub

    jdub Tuned and Synch'ed

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    Bay area CA
    I intend to tackle the linkage and swingarm bearings when my rear wheel comes off for a new tire. I'll hopefully get to it next weekend as I"m down to the wear bars. Keeping my fingers crossed for finding grease in those bearings!
     
  3. Lannis

    Lannis Cruisin' Guzzisti

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    Hope you find some too! I took my swingarm off my 2009 to check the bearings at 40,000 miles, and luckily found them with some grease on them (not a lot) and undamaged. Greased them up well, greased the drive shaft spline, and am riding on with confidence. Many people have found the bearings dry, red with rust, and coming apart .....
     
  4. jdub

    jdub Tuned and Synch'ed

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    Finally got around to checking the bearings in the swingarm and shock linkage. At 20k miles and after a particularly wet winter season, I was pleasantly surprised to see both swingarm bearings were in good shape and still greasy. The outer seals don't look like they would do that good of a job, but I'm not complaining. I cleaned the cages and regreased the best that I could, but in hindsight I probably should have ensured more grease got into the caged portion.

    I think there were 5 of the needle bearings in the linkage. One was toast and two were marginal. I had bought some spares and replaced the worst one. It turned out to be a major pain to remove. I should have tried finding a socket that could engage the cage but I opted instead to work it out with a punch, which was very tedious. The pin that rides on the needles had surface corrosion on the side with the bad needles, but I didn't think to buy any of the pins so I had to reuse it.

    I ended up cleaning and regreasing the two marginal bearings because the one I replaced was such a pain. Interestingly, there were 4 needle bearing seals that needed replacing, but the one for the corroded bearing looked to be in good shape, while the 4 that I replaced had shredded sides.

    The new seals are mostly metal and should be more durable compared to the original rubber seals. However, those metal seals just love to get crimped as you try your hardest not to drive them in cockeyed.

    After putting everything back together, I hung a rubber sheet between the battery tray area and swingarm to create a hugger of sorts that should keep tire spray away from those bearings. You'd have to look very closely to even see it with all of the bodywork in place.
     
  5. John Warner

    John Warner Cruisin' Guzzisti GT Contributor

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    Always a good idea to fit Grease Nipples wherever possible.
    Linkage.jpg Linkage4.jpg

    Design of the Frame around the Swing-Arm Bearings means it's not possible to fit them there, you have to be a bit more 'creative'.
    SwingArmAxle1.jpg SwingArmAxle2Dia.jpg
     
    boscoman likes this.

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