Wildguzzi.com

General Category => General Discussion => Topic started by: chrisk on December 28, 2015, 06:40:11 AM

Title: How to number 42: remove swingarm bearing from gearbox?
Post by: chrisk on December 28, 2015, 06:40:11 AM

I've had a quick search on to remove the swingarm bearings from the gearbox but can't find anything, someone MUST have asked before...?

Title: Re: How to number 42: remove swingarm bearing from gearbox?
Post by: Chuck in Indiana on December 28, 2015, 10:33:47 AM

Small block?

Title: Re: How to number 42: remove swingarm bearing from gearbox?
Post by: chrisk on December 28, 2015, 10:58:54 AM

Yep, I thought they were all the same tbh... but  yes, v65

Title: Re: How to number 42: remove swingarm bearing from gearbox?
Post by: pehayes on December 28, 2015, 11:05:48 AM

Blind bearing puller.  Where are you located?  Perhaps someone nearby can help.

Patrick Hayes
Fremont CA

Title: Re: How to number 42: remove swingarm bearing from gearbox?
Post by: Doug McLaren on December 28, 2015, 01:56:47 PM

As Patrick suggests use a blind bearing puller, I found it helpful to give them a bit of heat too. On reassembly, put the bearings in the freezer for a few hours then warm the casing up and they'll go in nicely.

Title: Re: How to number 42: remove swingarm bearing from gearbox?
Post by: chrisk on December 28, 2015, 03:22:34 PM

 I'm in the uk but thx, I now know what I'm looking for and I've found a puller on eBay for £20.

Title: Re: How to number 42: remove swingarm bearing from gearbox?
Post by: racasey on December 29, 2015, 11:24:30 AM

I would strongly encourage you to heat the aluminum surrounding the bearing to 100C, not just warm.  100c is easy to identify. Spit or a drop of water will dance off the surface. 

On shortblock Guzzi's like yours, the entire load of the rear suspension is carried by the interference fit of the two ball bearings you intend to pull.  If the proper fit is lost, due to improper removal/installation, a loose bearing will fret the transmission case bosses and over time fail.

This video may be helpful.

https://www.youtube.com/watch?v=UzcIq4gEm3A

Safety first, please.
Dick

Title: Re: How to number 42: remove swingarm bearing from gearbox?
Post by: Chuck in Indiana on December 29, 2015, 12:05:14 PM

It's really not much of a press.. only a thousandth or so. From the Lario rehab thead.. slide hammer in action. I'tll pop right out.
(http://i29.photobucket.com/albums/c294/elwood59/Lario/007-5_zpsafd6f35b.jpg) (http://s29.photobucket.com/user/elwood59/media/Lario/007-5_zpsafd6f35b.jpg.html)
As mentioned above, let the new bearings soak in the freezer overnight. A little Lubriplate wiped in the bore with your finger will keep the bearing from galling as it goes in. Don't waste any time, start it straight, put your piece of engineering plastic, aluminum, wood, whatever you have over it and give it a whack with your copper hammer. Don't hit the inner race with anything.. that'll screw up the bearing.
Drive it home with a socket that fits the outer race.
(http://i29.photobucket.com/albums/c294/elwood59/Lario/008-4_zps0c55ebbb.jpg) (http://s29.photobucket.com/user/elwood59/media/Lario/008-4_zps0c55ebbb.jpg.html)
Done. Nothing too it.