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Rear Wheel Wobble - Swing Arm Bearing???
- HerrDeacon
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Is it hard to replace these bearings? Any special tools needed?
Also, are these the correct bearings?
www.z1enterprises.com/detail.aspx?ID=1550
If so, they are showing out of stock at the moment, would these be much more expensive at the dealer?
Thanks
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- FloridaBiker
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All you need is a vise, a drift and a good hammer to change them.
It should only take 5 minutes once the swing arm is on the bench.
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- Bluemeanie
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1980 KZ650F1, Bought new out the door for $2,162.98!
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- RetroRiceRocketRider
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- ...bring in the machine that goes PING!
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And both SR models offered in '78 (D1 and D1A) used these bearings.
Not to steer (no pun intended) you away from buying from Z1 Ent, but since they are currently out of stock on those bearings, if you can locate a bearing supply shop near you they should have them.
A few years back I bought some for my 650 from a bearing specialty shop near me, and they only set me back $24 for all 4.
The bearings you'll want to ask for are HK2216, and as shown on Z1 Ent they measure 22X28X16mm.
Most likely you'll need to heat the old ones up and use a BFH and a metal drift, because after 30 years they're likely stuck so solidly in there like mine were that they'll destroy an average bearing puller. :pinch:
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- HerrDeacon
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I just took the rear wheel off but I don't have a socket big enough to take off the swing arm nut. Anyone know what size socket I'll need for this so I can pick one up? Is it 22mm?
Thanks again.
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- FloridaBiker
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RetroRiceRocketRider said: "Most likely you'll need to heat the old ones up and use a BFH and a metal drift,.."
What works for me is to use a propane torch to heat the outer diameter of the swing arm (surrounding the bearing) with a ice cube applied to the inside of the bearing. That increases clearance by several thousandths and simplifies removal.
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- OnkelB
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I just took the rear wheel off but I don't have a socket big enough to take off the swing arm nut. Anyone know what size socket I'll need for this so I can pick one up? Is it 22mm?
24 mm.
77 KZ 650 B1, 82 GPz 1100 B2.
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- FloridaBiker
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Use an adjustable wrench.
PepBoys has the big sockets very cheap.
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- Rob Cremains
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here is a link to the info, off of Z-power but through Google...(about 12 paragraphs from the bottom--its a HUGE article.)
209.85.141.104/search?q=cache:s-bx7-i9cA...n&ct=clnk&cd=8&gl=us
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- HerrDeacon
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The problem now is that the bearing housings are still in the arm, and I'm not sure how I'm going to get them out. They are fused to the arm with rust. I have them soaking in PBBlaster now. This is not going to be fun.
I'm going to try the local bearing dealer tomorrow and hopefully I can get the bearings from them.
Thanks again for everyones input.
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- HerrDeacon
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However, the sleeve ends are a bit worn so I think I'm still going to have some play even with the new bearings. I'm going to use it for the time being but was wondering if these are easy to come by? Would dealer carry this item?
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- HerrDeacon
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I picked up the bearings from a local bearing dealer using the code provided by RetroRiceRocketRider (they shipped them in over night for me). Thanks RRRR.
Before attempting to put them in I put them in the freezer for a few hours, then just prior to installation I heated up the ends of the swing arm with a torch. The bearings went in pretty smoothly with this method. I then greased them up and put everything back together. One tip the bearing salesman told me was to make sure I put them in with the stamped number side of the bearing facing out. The reason being that this side is stronger than the other and so there is less chance of damaging the bearing when pressing them in.
Took the bike out for a spin and what a great feeling. No wobble at all. Prior to this the rear wheel would wobble when braking, letting off the gas or cornering. All of these problems are now gone. One less problem to worry about.
Thanks again for everyones help with this problem.
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