Take out bearings.

  • gordone
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22 Oct 2017 07:11 #773450 by gordone
Take out bearings. was created by gordone
I need some inputs how to take out the 4 bearings inside the swing arm, please see attached photos.
First I tried to use a flat screwdriver and take it through and hit the screwdriver with a hammer.. I got out the roller of the bearings, but not the "frame" of the bearings... and then I tried to use a screwdriver to collapse it without any success, I also tried to saw it, but was to hard.

SO before I damage something will I got some advise from you people first :)

Please see attached photos.

1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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22 Oct 2017 11:04 #773471 by baldy110
Replied by baldy110 on topic Take out bearings.
Those can be a real pain if their needle bearings and have been in awhile. I ended up using heat and pounded them out with a long punch and large hammer.

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  • gordone
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22 Oct 2017 11:42 #773474 by gordone
Replied by gordone on topic Take out bearings.
hehe okey :) so no easy way :)

1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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  • Tyrell Corp
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22 Oct 2017 17:16 #773491 by Tyrell Corp
Replied by Tyrell Corp on topic Take out bearings.
no lots of heat and a 10 ton press, after the usual pleasantries with a club hammer beforehand.

1980 Gpz550 D1, 1981 GPz550 D1. 1982 GPz750R1. 1983 z1000R R2. all four aces

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22 Oct 2017 18:41 #773498 by Daftrusty
Replied by Daftrusty on topic Take out bearings.
I use a blind-hole bearing puller and lots of heat.
It’s the only way I could get those roller bearings out of aluminum swingarms without destroying everything in the process.
They are invaluable for removing the wheel bearings as well.
Autozone has them in their free loaner tool program.
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  • gordone
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22 Oct 2017 22:04 - 22 Oct 2017 22:06 #773517 by gordone
Replied by gordone on topic Take out bearings.
but how was you able to insert these tool? I mean the bearings is on both sides, you was not "draging"/hammer" it out by forceing the bearing through whole swingarm? Please see attached picture (hope you understand) so I understand you correct.

You need to get the tool beyond the bearing, but how ?

Sorry for not understand.

One question more, on partzilla it`s indicated two bearings one on each side, but as fair I can see are there 4 on my swing arm 2 on each side?

1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
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Last edit: 22 Oct 2017 22:06 by gordone.

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23 Oct 2017 16:44 #773570 by TexasKZ
Replied by TexasKZ on topic Take out bearings.

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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23 Oct 2017 16:58 #773574 by TexasKZ
Replied by TexasKZ on topic Take out bearings.
Hmmm, the parts diagram for the 1979 650D2 clearly shows 4 bearings.

www.kawasaki.com/Parts/PartsDiagram/143145/1979/KZ650-D2

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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  • Scirocco
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23 Oct 2017 17:47 #773580 by Scirocco
Replied by Scirocco on topic Take out bearings.
To your understanding for the recommended tools, (bearing puller)






www.cmsnl.com/kawasaki-kz650e1-ltd-1980-...t/57284.html#results

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  • SWest
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23 Oct 2017 19:06 #773590 by SWest
Replied by SWest on topic Take out bearings.
The spacer fits losly between the bearings. I use a drift to drive the spacer against the bearing until it comes out. After that it's easy to drive the other one out using the spacer again.
Steve

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23 Oct 2017 20:59 - 23 Oct 2017 21:04 #773600 by Dr. Gamma
Replied by Dr. Gamma on topic Take out bearings.
Best way I found to get the swing arm bearings out is make up a nice long tool that comes in from the opposite side of swing arm and catches on the lip of the bearing. Then with a good size hammer knock them out. The tool that I had made does not normally leave a groove when removing the old bearings. If you have any type of grooves or gouges inside the swing arm, you will have a real hard time getting the new bearings in place. The bottom tool in photo is the tool I use to remove the old bearings. If you do have any type of grooves or gouges, I would sand the inside of swing arm to it is smooth again.



The other tool is what I use to install the new swing arm bearings. Notice this tool distributes the force of pressing the bearing in place on the whole 360 degrees of the bearing edge. I insert this tool through the swing arm with a new bearing, and place a new bearing on the other end of tool to make sure the new bearing is centered as I install it. I have never damaged a new bearing when I used this tool to install my swing arm bearings. After you install the new bearings make sure the inner needle bearing spins freely inside its outer cage. If not, you have to start over with new bearings!!!!

1972 H2 750 Cafe Racer built in 1974.
1976 KH400 Production Road Racer.
1979 Kz1000 MK. II Old AMA/WERA Superbike.
1986 RG500G 2 stroke terror.
1986 GSXR750RG The one with the clutch that rattles!

Up in the hills near Prescott, Az.
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Last edit: 23 Oct 2017 21:04 by Dr. Gamma. Reason: fixed something!!

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  • gordone
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26 Nov 2017 12:23 #775106 by gordone
Replied by gordone on topic Take out bearings.
Thank you all for your information, after some hours was all 4 out... not a nice job, but nice to be done :)

I can bank the new bearings slow and gently in?

1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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