Author Topic: El Dorado swing arm bearing race removal  (Read 2847 times)

Offline BSABEN

  • Gosling
  • ***
  • Posts: 160
El Dorado swing arm bearing race removal
« on: September 20, 2016, 07:46:23 PM »
Seeking advice on how to best remove the tapered races on my El Dorados swing arm. Swing arm is off the bike. Suggestions?

Online pehayes

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • *
  • *
  • Posts: 4767
    • Falcone Touring
Re: El Dorado swing arm bearing race removal
« Reply #1 on: September 20, 2016, 08:12:19 PM »
Use a blind bearing puller like this:



Hudreds of variants in the technical world.    Would be wise to state where you are located.  Might be someone down the road who has just what you need.

Also, if you are not already registered it would be wise to chat on the LoopFrame group over on Yahoo Groups.  Let me know if you can't find it or can't register.

Also, everything you ever need to know about this bike can be found at:

http://www.thisoldtractor.com/moto_guzzi_loopframe.html

Patrick Hayes
Fremont CA
« Last Edit: September 20, 2016, 08:14:28 PM by pehayes »

canuck750

  • Guest
Re: El Dorado swing arm bearing race removal
« Reply #2 on: September 20, 2016, 09:41:18 PM »
The races can be very tight, make sure you crank the blind bearing in real tight and use some heavy slams of the slide hammer.



Harbour Freight sells Bling Bearing puller kits or you can get them off Ebay for under $80 and they are also great for pulling wheel bearings.

I have used this kit for years

http://www.ebay.com/itm/9pcs-Blind-Hole-Pilot-Bearing-Puller-Internal-Extractor-Remover-Slide-Hammer-/331016681667?hash=item4d1221b8c3:g:RjIAAOxyl5lSKoPL&item=331016681667&vxp=mtr

Offline chaoselephant23

  • Hatchling
  • **
  • Posts: 83
  • Livin
  • Location: SECT
Re: El Dorado swing arm bearing race removal
« Reply #3 on: September 21, 2016, 06:46:38 AM »
AutoZone has a blind bearing puller for rent. $160 down and you get it back when the tool is returned. Best to use the Credit Card. And check for damage before leaving the store. You don't want to be left holding the back for the previous dolt. I have rented the tool three times now without incident. Made gearbox and wheel bearing removal a breeze :cool:
2003 California EV Touring
2003 California Stone Touring

MGNOC #22970

Offline Groover

  • Gaggle Hero
  • *****
  • Posts: 2924
  • If it ain't broke, I'll break it.
    • Scooteropolis
  • Location: Columbus, Ohio
Re: El Dorado swing arm bearing race removal
« Reply #4 on: September 21, 2016, 08:12:55 AM »
AutoZone has a blind bearing puller for rent. $160 down and you get it back when the tool is returned. Best to use the Credit Card. And check for damage before leaving the store. You don't want to be left holding the back for the previous dolt. I have rented the tool three times now without incident. Made gearbox and wheel bearing removal a breeze :cool:

 :1:
1981 Moto Guzzi V1000G5
1987 Moto Guzzi LM1000SE, a
1987 Moto Guzzi LM1000SE, b
1980 Piaggio Vespa P200E
1980 Piaggio Vespa P125X
1980 Vespa Grande Moped
1980 Vespa SI Moped
http://scooteropolis.com/

Offline Toecutter

  • Gaggle Hero
  • *****
  • Posts: 1042
Re: El Dorado swing arm bearing race removal
« Reply #5 on: September 21, 2016, 12:37:35 PM »
Surprised nobody has corrected the spelling yet, it was the first response when I posted about the Eldorado.  :wink:
Old enough to say I've done it, young enough to do it again.

Offline Chuck in Indiana

  • Gaggle Hero
  • *****
  • *
  • Posts: 29660
Re: El Dorado swing arm bearing race removal
« Reply #6 on: September 21, 2016, 06:07:53 PM »
A heat gun can help, too.
Chuck in (Elwood) Indiana/sometimes SoCal
 
87 AeroLario
95 Skorpion tour
25 Triumph Speed 900
"Social media made y'all way too comfortable with disrespecting people and not getting punched in the face for it."

Mike Tyson

Offline luthier

  • Gaggle Hero
  • *****
  • Posts: 933
  • Location: Northern NSW
Re: El Dorado swing arm bearing race removal
« Reply #7 on: September 21, 2016, 09:53:32 PM »
Run beads of weld around the inside of the race. This shrinks it and it will then wiggle out.
Just don't weld it in there of course. A bit fiddly but easy with a steady hand.

Offline Matt Story

  • Gaggle Hero
  • *****
  • *
  • *
  • Posts: 725
  • Flint, MI
Re: El Dorado swing arm bearing race removal
« Reply #8 on: September 21, 2016, 10:05:15 PM »
I wonder if you could take them out hydraulically like you can remove a clutch pilot bushing (on a car)?  Pack the bottom of the hole with grease, and drive/press a slip-fit slug into the grease.  Pressure differential caused by the different surface areas multiplies the force and pushes out the bearing...  Heat first couldn't hurt.  I don't know.  Maybe worth a try.  I've used it a couple times on blind fit plane bushings.
'75 850T - First & only owner
'77 Honda CB750 Supersport
'02 BMW R1150RT

Flint, MI

Online Antietam Classic Cycle

  • Gaggle Hero
  • *****
  • Posts: 14887
  • Happily stuck in the past.
    • Antietam Classic Cycle
  • Location: Rohrersville, Maryland
Re: El Dorado swing arm bearing race removal
« Reply #9 on: September 21, 2016, 10:14:46 PM »
I wonder if you could take them out hydraulically like you can remove a clutch pilot bushing (on a car)?  Pack the bottom of the hole with grease, and drive/press a slip-fit slug into the grease.  Pressure differential caused by the different surface areas multiplies the force and pushes out the bearing...  Heat first couldn't hurt.  I don't know.  Maybe worth a try.  I've used it a couple times on blind fit plane bushings.

Might work on the right side that goes into a "blind" hole just slightly deeper than the bearing. But, the left side isn't blind, rather a "cylinder" about 6" deep. Would take a lot of grease to fill that!  :wink:

A blind hole bearing puller works perfectly fine and if you can rent one, costs almost nothing. Doesn't destroy the (possibly reusable) bearing either.
Charlie


NEW WILDGUZZI PRODUCT - Moto Guzzi Door Mat
Receive donation credit with door mat purchase!
Advertise Here
 

***Wildguzzi Official Logo High Quality 5 Color Window Decals Back In Stock***
Shipping in USA Only. Awesome quality. Back by popular demand. All proceeds go back into the forum.
Best quality vinyl available today. Easy application.
Advertise Here