Replacement of front wheel bearings

discussions specific to the 750 Paso

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JWilliam
Posts: 331
Joined: Wed Oct 06, 2004 12:00 am
model: 906 Paso
year: 1989
Location: Nottingham, UK

Replacement of front wheel bearings

Post 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.
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paso750
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model: 750 Paso
year: 1987
Location: southern Germany

Post by paso750 »

hey, you forgot to post in the 907ie forum :D

maybe this`ll help:

http://members.aol.com/TBoling125/paso_project_7.html

G.
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Desmo_Demon
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Post by Desmo_Demon »

paso750 wrote:hey, you forgot to post in the 907ie forum :D

maybe this`ll help:

http://members.aol.com/TBoling125/paso_project_7.html

G.
I think this is the key item on that page for front wheel bearing removal...

Image

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....

Image
2002 Ducati 748 monoposto
1998 Ducati ST2
1996 Suzuki GSXR-1100
1994 Bimota DB2
1988 MegaPaso 916 project
1987 Ducati Paso 750
1985 Harley FXEF
2001 Ducati M900ie (wife's)
2000 Yamaha YZF-R1 (wife's)
1998 Ducati ST2 (wife's)
1994 Suzuki GSX-750R (wife's)
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JWilliam
Posts: 331
Joined: Wed Oct 06, 2004 12:00 am
model: 906 Paso
year: 1989
Location: Nottingham, UK

Post 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.
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Desmo_Demon
paso grand pooh-bah
Posts: 869
Joined: Fri Jul 21, 2006 12:00 am
model: 750 Paso
year: 1987
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Post 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.
2002 Ducati 748 monoposto
1998 Ducati ST2
1996 Suzuki GSXR-1100
1994 Bimota DB2
1988 MegaPaso 916 project
1987 Ducati Paso 750
1985 Harley FXEF
2001 Ducati M900ie (wife's)
2000 Yamaha YZF-R1 (wife's)
1998 Ducati ST2 (wife's)
1994 Suzuki GSX-750R (wife's)
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