Put new bushings into the swingarm, when going to install to the cradle the spindle seems very tight, i was warming thing with a heat gun (a little gun shy since it was all just powder coated) i get the spindle maybe half way into the first bush then it gets stuck.
swing arm spindle, how tight?
- Thread starter kevbo82
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UGh. if the spindle passes through each bush ok but not pass through both mounted in swingarm, then you have big issue with tweaked swingarm that may not be able to solve w/o buying another. I wasted some money having GT Enterprises try to straighten pre-Ms Peel's but when it came back it still would not pass the spindle all the way through. I bought an 850 swing arm and spindle went in fine on Ms Peel to live through the worse of her antics on & off road and now on Trixie just fine.
took the new bushings out of the swingarm, one slides very easy, like the old one's do over the spindle, the other is a tad tighter, and takes a small amount of force to slide around, but not much. reinstalled the bushings, and same result, i get maybe the first 1/2" of the spindle into the bushing and it stops. If i twist, or put any force on it by hand it pretty much gets stuck and i have to use a socket on an extension from the other end to tap it out. i think next i'm going to reinstall the old bushing and see if the spindle slides in with them.
kevbo82 said:
Remember, these bushings are soft and down right fragile. The lip can fracture quite easily. Push and pull, yes. Pound and tap, no. Any undue force could cause deformity. How are the old bushings. I have reversed my installs before, using my old bushing that were simply in good condition and i was swapping them out as a course of precaution unnecessarily.
Did you soak them in oil over night?
Dry fit spindle in bushing in the swingarm on the bench before setting into cradle.
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Probably set for Line Reaming , to fit ( bushes ) . should be naff all clearance there .
Doesnt want ANY clearance in cradle. In fact should be pressed in INTERFEARANCE ( 3 1/2 thou ? ) with hydraulic press . Not a pansey one , either .
Cradle of machine , obviously. for beat handleing .Obviously.
Doesnt want ANY clearance in cradle. In fact should be pressed in INTERFEARANCE ( 3 1/2 thou ? ) with hydraulic press . Not a pansey one , either .
Cradle of machine , obviously. for beat handleing .Obviously.
Yeah I soaked them for like a day and a half, then left them in the freezer for probably six hours or so before install. I don't think the old ones are bad, I just thought I should change them while apart. I've considered using the old ones but now I want to know what the heck is causing these problems and if there is a bigger issuepvisseriii said:
DogT
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If it were mine and the old bushings work without undue play, I'd use them. I did the same with my forks, the new bushings and bottom bushes were real tight and the old ones didn't have much play, so I re-used them. It's how comfortable your are with old stuff. It may be that your new bushings are not exactly lined up for who knows what reason. I sent my cradle and swing arm out to Nithberg in CAN, I'm not sure they're still doing them, and got an over sized SS spindle, installed extra bolts kinda like the kiegler mod and he reamed the bushings to fit in situ, so they went right in.
If the spindle is not worn and the old bushes either, it's not like that area gets a workout unless something gets loose or no oil.
Dave
69S
If the spindle is not worn and the old bushes either, it's not like that area gets a workout unless something gets loose or no oil.
Dave
69S
I've bought new bushings for the swingarm that were out of spec. The spindle fit in the bushing before the bushing was installed in the swingarm, wouldn't fit after. Got new bushings from a different source and they were fine. If they have a significant interference fit then you can remove material from the outside of the bushing and see if it can be made to fit, but why bother? Just get new bushings and check before you soak'em, so you can send them back if you need to. I've had the exact same problem with fork bushings too.
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OH just hung in one new bush, that's a relief. As stated these thing are fragil so maybe its just gotten out of round like forks bushes then to come so just needs some tender hammer rapping all around on spindle till spindle passes just fine. I was told these are such simple machines anyone can fix em right off.
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Some would be sized for LINE REAMING after fitting . The Crush being inevitable with a press fit . Honed to 1/2 thou clearance on pin .
Pre lubed all surfaces with PTFE or the like . And theres the lateral endfloat . Set to 2/10 of 5/8 of stuff all , as in just about zero .
Hammers should be left elsewhere during assembly process , please .
The big issue is the fit of the spindle to the cradle .If its a 3 1/2 thou or better interfearance and pressed in with a hydraulic press
you can start to consider it tight. Maybe.
Pre lubed all surfaces with PTFE or the like . And theres the lateral endfloat . Set to 2/10 of 5/8 of stuff all , as in just about zero .
Hammers should be left elsewhere during assembly process , please .
The big issue is the fit of the spindle to the cradle .If its a 3 1/2 thou or better interfearance and pressed in with a hydraulic press
you can start to consider it tight. Maybe.
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