Swing Arm removal

Robbie · 01-Jan-2004, 19:01

Alright technical types. I'm resurrecting an older 748 & need to take the swinging arm off. Previous owner ran the bike with the eccentric 180deg out & I think the chains been gnawing at the arm. It's also incredibly manky & I get perverse joy from digging about in all the goo that accumulates behind front sprocket.
Removal of the bolt from the RHS was easy enough but the spindle cum sleeve with the big Allen head was seized. Application of a monster lever got it turning but no way can I get it to move sideways. I assume it's stuck in the bearings.
Short of assaulting it with a big hammer & drift or slinging half a bike in the back of the car & heading for the engineering shop does anyone have any ideas ?
Help !

Robbie

Nigel C · 01-Jan-2004, 20:50

do a search for "swingarm" on the old board (link on main page) there is some very helpful advice.

hope this helps

rcgbob44 · 02-Jan-2004, 08:27

Get a Nonda!

nelly · 02-Jan-2004, 10:08

Robbie, I had a similar problem with mine a couple of years back.
A big drift and a hammer will come in useful

, but the thing I did was to get a hold of some 12mm or 14mm threaded bar and some long bits of stout tubing, steam pipe is good.
I then used it as a draw bar, through the center of the pivot, to put lots of pressure on the pivot and then drift it out. Tightening it as the pivot moved.
It's not easy. It took me about 2 hours!!

Robbie · 02-Jan-2004, 12:01

Excellent idea Nelly ! I think there may be some threaded rod in the shed too. I've got my old man turning up a sized drift on his lathe but I may try this first.

nelly · 02-Jan-2004, 12:17

If you've got turning capabilities, I have the Ducati drift I could measure up for you.
Pretty self evident though, but if you need the dims, let us know.

Robbie · 02-Jan-2004, 22:09

Hah ! Ducati make a drift.

That rather suggests they know the things seize but dont bother making with the grease anyway.
Anyway I faked up a puller type thing as you suggested & have managed to move things maybe 4mm or so. Have left the tension on overnight & will hit it again tomorrow.
Am slightly concerned as bike went down on RHS at Knockhill & I worry things may be a little twisted in the frame department. We'll see.

midd916 · 03-Jan-2004, 23:02

In my opinion, it's not a case of the spindle seizing, I beleive they actually miss shape over time. I measured mine for run out after a long removal process and it was basically bent. Get a new one when you get it out!

nathanhu · 03-Jan-2004, 23:56

had the same problen on my 996 after i crashed it , the axle was bent! had to saw it off in the end

Robbie · 06-Jan-2004, 21:23

Saw it off

eek. How do you saw through a swing arm spindle ?
I put loads of tension on the draw bar affair tonight & it eventually just snapped ! Spindle still sitting there immobile. Wonder if there's a hydraulic press locally (unlikely). Am starting to get a smidgeon discouraged

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01-Jan-2004, 20:50	#2
Nigel C Registered Forum User Big Twin Posts: 1,710 Join Date: Aug 2002 Location: Worthing Sussex Mood: happy bike passed MOT do a search for "swingarm" on the old board (link on main page) there is some very helpful advice. hope this helps Reply

02-Jan-2004, 08:27	#3
rcgbob44 DSC Club Member BSB Star Bikes: 2009 Ducati Monster 1100s, KTM 890R Posts: 5,993 Join Date: May 2003 Location: Coulsdon, Surrey...........and hopefully Germany at some point in the future. Mood: I love the Monster and the KTM & I have my wife exactly where she wants me! Get a Nonda! Reply

02-Jan-2004, 12:01	#5
Robbie Registered Forum User Posts: 40 Join Date: Nov 2003 Location: SW Scotland Mood: Variable Excellent idea Nelly ! I think there may be some threaded rod in the shed too. I've got my old man turning up a sized drift on his lathe but I may try this first. Reply

02-Jan-2004, 12:17	#6
nelly Registered Forum User Ducati Corse Posts: 3,134 Join Date: Jan 2002 Location: notts Mood: Bloo and Yellow.. and Red now ;) If you've got turning capabilities, I have the Ducati drift I could measure up for you. Pretty self evident though, but if you need the dims, let us know. Reply

03-Jan-2004, 23:02	#8
midd916 Registered Forum User Montjuic Posts: 62 Join Date: Aug 2003 In my opinion, it's not a case of the spindle seizing, I beleive they actually miss shape over time. I measured mine for run out after a long removal process and it was basically bent. Get a new one when you get it out! Reply

03-Jan-2004, 23:56	#9
nathanhu Registered Forum User 500SD Posts: 631 Join Date: Aug 2003 Location: Germany, 3 hours from the ring.. Mood: head down swing arm had the same problen on my 996 after i crashed it , the axle was bent! had to saw it off in the end Reply

06-Jan-2004, 21:23	#10
Robbie Registered Forum User Posts: 40 Join Date: Nov 2003 Location: SW Scotland Mood: Variable Saw it off eek. How do you saw through a swing arm spindle ? I put loads of tension on the draw bar affair tonight & it eventually just snapped ! Spindle still sitting there immobile. Wonder if there's a hydraulic press locally (unlikely). Am starting to get a smidgeon discouraged Reply