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How do I get the bearings out of an 04 Specialized Enduro?

DirtMcGirk

<b>WAY</b> Dumber than N8 (to the power of ten alm
Feb 21, 2008
6,379
1
Oz
I realize this isn't exactly DH, but this is the most popular forum, so I need to play the odds.

Short of getting a bearing puller, how do I get the bearings out of my 04 Enduro? Specifically the ones in the chain stay at the rear pivot point? Just got my new bearings in the mail, want to get this done so I can get back out in the wet.
 

XJman07

Chimp
Aug 28, 2007
58
0
Folsom, CA
if your not reusing them I just beat on them with a flat head screw driver and a hammer. Probably not the safest and easiest way but it worked. just be careful not to wack the frame with the hammer or screw driver.
 

davep

Turbo Monkey
Jan 7, 2005
3,276
0
seattle
The horst pivot bearings should be small enough to use the socket/bolt method to pull them out. Find a socket who's inner diameter is just bigger than the bearing. Thread a bolt thought the bearing and socket and put washer/nut on the end. TIghtent he bolt and pull the bearing into the socket.

Use propper cylindrical adhesive when you put the new ones in.
 

Bikerpunk241

Monkey
Sep 28, 2001
765
0
I just use a punch and hammer.....be careful not to remove the ridge from the center though...... Then, if the bearing fall apart, you can just use the punch to break the outer race, not the cleanest method, but it works provided you're careful about it.
 

Boxxer

Monkey
Jul 18, 2005
856
2
Dirty South
Its that center ridge that causes a problem when bearings are paired back to back. Without a proper bearing puller all the above methods will work as long as youre careful. Ive cut the inner races with a small dremel blade, then notched the outer race, and popped it out with a small flat blade. Its a pain in the rear for sure.
 

DirtyMike

Turbo Fluffer
Aug 8, 2005
14,437
1,017
My own world inside my head
Just go slowly, the washer and socket trick works well. very close to how the puller for specialized works. But really, dont use a hammer, its too easy to ovalize the holes that way. Putting the new ones in is easy, one washer on the ridge side that is bigger than the hole, one washer on top of the new bearing that is just slightly smaller than the OD, try to get one that hits right on the outside race. Same thing, go slowly, you dont want it going in crooked.


Little bit of Loctite sleeve retainer you can pick up at your local star, Kragen, autozone, and your good to go
 

DirtMcGirk

<b>WAY</b> Dumber than N8 (to the power of ten alm
Feb 21, 2008
6,379
1
Oz
Got all of them in but one without it going sideways.

Its off a little bit, hopefully it won't be an issue, because the harder metal of the bearing notched the inside of the sleeve...
 

DirtMcGirk

<b>WAY</b> Dumber than N8 (to the power of ten alm
Feb 21, 2008
6,379
1
Oz
Ok, now I think I might be really, really ****ed.

The bearings in the upper part of the rear triangle, where it connects to the chain stay, busted on me, but did not take the outer shell of the bearing with it when they imploded.

Any help?
 

davep

Turbo Monkey
Jan 7, 2005
3,276
0
seattle
This is the down side to using a punch/screwdriver and hammer to remove cartrage bearings...they are not made to take axial forces and break.

I have removed outer races from several places with a file and some careful work. Bearing races are very hard and brittle. If you can file a couple notches in the race (at 0 and 180 degrees, or 0,120, and 180 degrees) without messing up the frame, you can usually get the race to break out in pieces.
 

DirtMcGirk

<b>WAY</b> Dumber than N8 (to the power of ten alm
Feb 21, 2008
6,379
1
Oz
Any suggestions on which file?

I am bummed now that this isn't getting done tonight, but I am just about at the far end of my mechanical skill.

Its almost like a huge race, like two bearings side to side, which have seized in there. I was seriously considering going gangster with the skill saw, but I am resisting that kind of stupid.
 

davep

Turbo Monkey
Jan 7, 2005
3,276
0
seattle
I just use the edge of a mill file to cut a V-slot across the race (file through the bearing hole).

Is there any way to catch the back edge of the bearing race with a propper puller? or is the shoulder that it is bottomed against too big?
 

DirtMcGirk

<b>WAY</b> Dumber than N8 (to the power of ten alm
Feb 21, 2008
6,379
1
Oz
Right now it doesn't look like a puller is going to do the trick.

I will see if I can cut them out with a file edge and then a bit of creative work with a screw driver and some pliers.
 

DirtyMike

Turbo Fluffer
Aug 8, 2005
14,437
1,017
My own world inside my head
The proper speccy puller will take that right out, they expand into place, and the kit has one made just for what your talking about. Other than than, I would suggest a dremel and a small cutting bit, take it slow and you will work the race out