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Replacement of front wheel bearings
Posted: Mon Oct 15, 2007 12:19 pm
by JWilliam
Do any Paso owners have tips for removing the front wheel bearings? It is made difficult by the bearing spacer that covers the bearing internally and prevents use of a punch.
Posted: Mon Oct 15, 2007 1:55 pm
by paso750
hey, you forgot to post in the 907ie forum
maybe this`ll help:
http://members.aol.com/TBoling125/paso_project_7.html
G.
Posted: Mon Oct 15, 2007 5:19 pm
by Desmo_Demon
I think this is the key item on that page for front wheel bearing removal...
Here's another of the swingarm pivot bearings, which are similar to the wheel bearings (actually, the bearings are the exact same part #). This diagram may help with showing the location and relationship of the components in the wheel hub. The outer race support is built into the wheel hub, instead of a separate part, as in the swingarm....
Posted: Tue Oct 16, 2007 6:49 am
by JWilliam
Yes I can see what you are getting at. I dont think the spacer will survive more than one bearing change so I might cut off the thin wall over the inner bearing face and make two slip on bushes.
Ps Didn't post this into the 907 forum because the 907 has a notably different front wheel.
Posted: Tue Oct 16, 2007 1:07 pm
by Desmo_Demon
JWilliam wrote:I dont think the spacer will survive more than one bearing change so I might cut off the thin wall over the inner bearing face and make two slip on bushes.
I had a friend of mine make a drift to drive the bearings out of my front wheel. He used a hydraulic press to evenly apply pressure to remove the spacer and bearings. There was no deformation of the spacer at all, so it can survive many bearings changes. Ideally, the drift should have an outermost diameter just under the 20mm inner race diameter of the bearing, and then step down to fit within the 17mm inner diameter of the spacer (the axle is 17mm, whereas the bearings have 20mm races, which is why this spacer is designed the way it is).
To modify the spacer the way you want to, you may want to make a correct length spacer for the hub that is of 20mm ID, then make a bushing that is 1-2mm shorter than the overall length of the distance between the outside of each bearing. There are several ways to do it, though.