Butchered swingarm

discussions specific to the 907IE
Post Reply
User avatar
persempre907
paso grand pooh-bah
Posts: 3312
Joined: Tue Dec 06, 2005 12:00 am
model: 907 I.E.
year: 1992
Location: Roma, Italia

Butchered swingarm

Post by persempre907 »

Yesterday, a nut of the rear sprocket was unbolt on my black 907 :banghead: :banghead:
I need to fix that damned stuff. Luckily, I have got a spare swingarm.
Any advice?
Do the bearings need to be replaced or can I use the old ones again?
What kind of bearings?
Many thanks in advance.
Ciao
Attachments
forcellone.jpg
(227.87 KiB) Downloaded 452 times
Francesco
Ducati 907IE 1992 Rosso
Ducati 907IE 1993 Nero
Moto Guzzi Galletto 1960 Sabbia
BMW R Nine t 2019
User avatar
Jaffa
Posts: 279
Joined: Sat Sep 13, 2008 2:40 am
model: 907 I.E.
year: 1991
Location: Canberra, Australia

Re: Butchered swingarm

Post by Jaffa »

Hi Francesco,

This looks like the classic spacer not being replaced when the rear tyre is reinstalled.

This happened to my bike and there is a thread for it somewhere on here. I replaced just the swingarm completed. There was no apparent damaged to the bearings at all however, I would check before reinstalling everything as things may be a little different for you.

Also, just check the sprocket carrier bolts on the inside of the rim as you may have a few surprises there too....broken carrier bolts.

Cheers
Jaffa
'91 907ie (RED)
'78 900 Darmah (RED) (now BLACK and lookin' goooooood)
'82 900 Mike Hailwood Replica
_________________________________
Volvo aware Motorcyclist
User avatar
Jaffa
Posts: 279
Joined: Sat Sep 13, 2008 2:40 am
model: 907 I.E.
year: 1991
Location: Canberra, Australia

Re: Butchered swingarm

Post by Jaffa »

Hi Francesco, this is the thread.

"Chain, sprockets and Swing-arm "

Cheers
Jaffa
'91 907ie (RED)
'78 900 Darmah (RED) (now BLACK and lookin' goooooood)
'82 900 Mike Hailwood Replica
_________________________________
Volvo aware Motorcyclist
User avatar
Derek
paso grand pooh-bah
Posts: 768
Joined: Thu Nov 03, 2011 10:13 am
model: 907 I.E.
year: 1994
Location: Scotland

Re: Butchered swingarm

Post by Derek »

I think this must have happened to the swinging arm on my 907 sometime in the past. It has been repaired with alloy welding that, after machining, is almost invisible. I didn't notice it until I was fitting a new length of plastic tubing to the chain oiler.
1994 907ie
2017 Supersport 939
2015 Scrambler Classic
1982 Pantah 500SL (now sold)


Scotland
User avatar
persempre907
paso grand pooh-bah
Posts: 3312
Joined: Tue Dec 06, 2005 12:00 am
model: 907 I.E.
year: 1992
Location: Roma, Italia

Re: Butchered swingarm

Post by persempre907 »

Many thanks,
I guess the only problem was the nuts unbolt.
In fact, I found all the nuts not well screwed on the carrier sprocket.
So, I will lock them with the wire to avoid they will go unbolt again.
Do you think I don't need to replace the swingarm bearings?
If yes, how can I remove the bearings from the swingarm?
Many thanks again.
Ciao
Francesco
Ducati 907IE 1992 Rosso
Ducati 907IE 1993 Nero
Moto Guzzi Galletto 1960 Sabbia
BMW R Nine t 2019
User avatar
ducbertus
paso grand pooh-bah
Posts: 531
Joined: Sun Jan 07, 2007 12:00 am
model: 907 I.E.
year: 1991
Location: holland

Re: Butchered swingarm

Post by ducbertus »

Hi Persempre,

when the bearings spin/move as intended I would leave them in place.
the same counts for the wheelbearings, as these faced the axial load during the damaging to the swingarm.
lock-wiring the nuts is an option, although not strictly necessary as the original nuts are mechanical selfretaining.

Bertus
User avatar
persempre907
paso grand pooh-bah
Posts: 3312
Joined: Tue Dec 06, 2005 12:00 am
model: 907 I.E.
year: 1992
Location: Roma, Italia

Re: Butchered swingarm

Post by persempre907 »

ducbertus wrote:Hi Persempre,

when the bearings spin/move as intended I would leave them in place.
the same counts for the wheelbearings, as these faced the axial load during the damaging to the swingarm.
lock-wiring the nuts is an option, although not strictly necessary as the original nuts are mechanical selfretaining.

Bertus
But, I would like to replace the swingarm with the new one I have got.
Later, I will fix the old one and I will keep it as a spare.
So, I would like to know about the bearings.
Someone told me it needs to warm the swingarm to keep the bearings away.
But, I'm thinking to put some new ones.
Do you know which kind of bearings I need to buy?
Or can I put the old ones without any problem?
I'm guessing it will be not so easy to keep the bearings away...
Ciao
Francesco
Ducati 907IE 1992 Rosso
Ducati 907IE 1993 Nero
Moto Guzzi Galletto 1960 Sabbia
BMW R Nine t 2019
User avatar
paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: Butchered swingarm

Post by paso750 »

what do you mean by "keep away" ?

here`re the bearing types:
http://forums.ducatipaso.org/viewtopic. ... 5&start=15

G.
User avatar
persempre907
paso grand pooh-bah
Posts: 3312
Joined: Tue Dec 06, 2005 12:00 am
model: 907 I.E.
year: 1992
Location: Roma, Italia

Re: Butchered swingarm

Post by persempre907 »

paso750 wrote:what do you mean by "keep away" ?

here`re the bearing types:
http://forums.ducatipaso.org/viewtopic. ... 5&start=15

G.
English mistake: I would like to say (and write) "take apart" or "dismount"...
Francesco
Ducati 907IE 1992 Rosso
Ducati 907IE 1993 Nero
Moto Guzzi Galletto 1960 Sabbia
BMW R Nine t 2019
Mc tool
paso grand pooh-bah
Posts: 1878
Joined: Wed Dec 05, 2007 12:35 am
model: 906 Paso
year: 1990
Location: New Zealand

Re: Butchered swingarm

Post by Mc tool »

persempre907 wrote:
paso750 wrote:what do you mean by "keep away" ?

here`re the bearing types:
http://forums.ducatipaso.org/viewtopic. ... 5&start=15

G.
English mistake: I would like to say (and write) "take apart" or "dismount"...
I put my finger in the woodpeckers hole
and the woodpecker said " god bless my soul
Take it out, take it out, REMOVE it" :)

Im thinkin he wants to remove the bearing .... probly not from a woodpeckers hole , Hey ! persempre, that wasn't you who tried to remove a peacock from his petrol tank a while ago was it ? :lol: :lol:
I wish I was young again............Id be heaps smarter than last time
User avatar
persempre907
paso grand pooh-bah
Posts: 3312
Joined: Tue Dec 06, 2005 12:00 am
model: 907 I.E.
year: 1992
Location: Roma, Italia

Re: Butchered swingarm

Post by persempre907 »

Hey Mc Tool,
you well remember!
By now, I need to remove, take it out, take apart, dismount etc. etc. both the swingarm bearings and the fuel filter.
Really, I would have preferred to replace the fuel filter only :,( :,( :,(
Ciao
Francesco
Ducati 907IE 1992 Rosso
Ducati 907IE 1993 Nero
Moto Guzzi Galletto 1960 Sabbia
BMW R Nine t 2019
User avatar
907pasonut
paso grand pooh-bah
Posts: 604
Joined: Tue Jul 20, 2010 9:27 am
model: 907 I.E.
year: 1992
Location: Melbourne Australia

Re: Butchered swingarm

Post by 907pasonut »

what I have done when replacing the rear sprocket is to put some blue locktite on the bolt thread, this works better than other fastners, of course if you lock the nuts with wire that works too.

another thing that's also recomended (from Brad) while you have the carrier out, is to tighten the bolts with the allan key from inside the carrier, to prevent the bolt itself from loosening after you torque the nut.
Cheers Claude.

...long live the square framed duc!

'92 907...numero 2046
'92 851...in progress
User avatar
persempre907
paso grand pooh-bah
Posts: 3312
Joined: Tue Dec 06, 2005 12:00 am
model: 907 I.E.
year: 1992
Location: Roma, Italia

Re: Butchered swingarm

Post by persempre907 »

Just fixed, thanks to nojapan!!!
Added some wonderful and loud Contis!!!!
Ciao
Francesco
Ducati 907IE 1992 Rosso
Ducati 907IE 1993 Nero
Moto Guzzi Galletto 1960 Sabbia
BMW R Nine t 2019
User avatar
nojapan
Posts: 65
Joined: Sun Aug 30, 2009 3:12 pm
model: 750 Paso
year: 1987
Location: Italy

Re: Butchered swingarm

Post by nojapan »

persempre907 wrote:Just fixed, thanks to nojapan!!!
Added some wonderful and loud Contis!!!!
Ciao
:thumbup: :thumbup:
Gabriel
Paso 750
Elefant 750 Monofaro '88
Elefant 900 Monobraccio '89
Elefant 750 pure off '85
SS 750 '92
Post Reply