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Old 04-29-2003, 08:13 AM   #1 (permalink)
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Question FXR rear wheel bearing spacer

Hey guys!

Looking for a little input here. Just had the rear wheel off of my '90 FXR to get a new rear tire installed and new bearing races put in. Went to reinstall last night and noticed that when the axle nut is just snug there is ABSOLUTELY no side to side play in the bearings and when I get even a small bit of torque on the nut the bearings become noticeably tighter. Seems to me the bearing spacer is too short. I guess I would have thought that the spacer could be used, but apparently the new bearings and races (matched Timken) are not the exact same size as the old. I'm assuming that the H-D shop would have longer spacers. My question is, does anyone know if they supply a range of spacer sizes or just one "cut to fit" length? If I had a lathe at home I'd cut one myself, but no $$$$ for that right now. On this FXR there is no way of using shims, the spacer itself needs to be thre right length to get 0.004"-0.013" of bearing play. 0.013" seems awfully loose, so I'd like it on the 0.004" side. Any help here from people who've experienced this same issue....
Thanks!!
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Old 04-29-2003, 08:18 AM   #2 (permalink)
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I put a new rear wheel on a 95 Dyna Superglide. I had a hell of a time getting the preload to be correct, I ended up using a spacer from an old shovel head. To just replace the rear tire, I wouldn't think that you would have to do anything.
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Old 05-01-2003, 06:18 PM   #3 (permalink)
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HDMD88 is reading this now saying WTF is this? HDMD88 is reading this now saying WTF is this?
There are 3 different size spacers if my memory serves me right. One thing to remember over torquing the axle nut will mushroom the spacer and there goes your end play.
I don't undserstand why you can't use shims in your FXR.
If you just had bearings replaced by a shop, be sure that the bearing races are fully seated in the wheel. If they aren't the brg. spacer won't touch the brgs. and your end play will be zero. I seen bearing races installed like this several times. Be carefull!
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Old 05-02-2003, 07:27 AM   #4 (permalink)
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Smile

I thought the same thing about the races not being seated, so I put the axle togther and slowly applied more and more torque to the nut while turning the wheel. This normally seats any race I've ever messed with, but not this one. I've ordered the longest spacer that they make for this application, about 0.014" longer than what I have now. I will install and check endplay. The cycle shop that sold it to me knows a guy right across the street that can turn the spacer down to the length I need. I suspect that if the bearings are original, they may be slightly different than the new ones, requiring the resizing of the spacer. I too figured I should be able to use shims of some kind, but I have had no luck finding any of the correct O.D. and I.D. to fit. J&P, Custom Chrome, and even Harley don't carry any of the correct size. It was either and eralier or later style axle that used shims, so I'm not sure why mine was of this design. Seems like a PITA sort of design. Oh well, spacer should be here today or Monday, so hopefully she'll be rolling soon!!!!
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