Rear Axle Removal..

discussion about the 750 Sport and '89/'90 900SS, which share many mechanicals with the Paso series
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Fireypete
Posts: 25
Joined: Sat Aug 23, 2025 5:24 am
model: 750 Sport
year: 1990
Location: Australia

Rear Axle Removal..

Post by Fireypete »

Hi All,
I loosened the chain adjusters, then removed both axle bolts. I did undo the alloy bracket Caliper hanger...thing...then put the bolt back in. I have tried supporting the rear wheel a little and doing without. Bit of wood on the axle and using a hamme on the axle from the LH and RH side and its not moving at all. Have I missed something? DO I need to drag the axle out from the LH or RH?
Pete

Oh, the wife made a valid point. It still has the original tyres...35 years old...that axle has never been off :|
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higgy
paso grand pooh-bah
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model: 907 I.E.
year: 1992
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Re: Rear Axle Removal..

Post by higgy »

Think you answered your own question. A good penetrate oil should help :phone: :truck: :wacko: :beer:
Ducati,making mechanics out of riders since 1946
There's no problem so bad that a little fixing can't make it worse! : )
Electrocuted Birds Are Bursting Into Flames and Starting Wildfires :roll:
88 750
90 906
92 907ie
Fireypete
Posts: 25
Joined: Sat Aug 23, 2025 5:24 am
model: 750 Sport
year: 1990
Location: Australia

Re: Rear Axle Removal..

Post by Fireypete »

Ok The axle is out. I used break free and CRC spray over the period of 12 hours, slowly "feeding" it into the axle Little spray, go away, come back little spray and so on. Used a syringe to try and get lube in there as well. I did find some lube had penetrated but What got it out was a bloody big heavy sledge hammer and plenty of hard hits...took ages. tried lighter mash hammers, not a chance. The big boy got it out. The threads of the axle are good, the axle itself is a rust ridden thing but will polish up. My self and 2 friends were needed, one held the drifts, I swung the hammer and the other supported the bike on the paddock stand. Pray the front is easier!
Damn is was brutal...all this with a swingarm that can crack...
Kiwi Rider
Posts: 45
Joined: Thu Sep 05, 2024 6:47 am
model: 750 Sport
year: 1988
Location: Southland, New Zealand

Re: Rear Axle Removal..

Post by Kiwi Rider »

Good to hear you beat it - literally! A rattle gun is a good option too. Can't beat a bit of shock therapy :mrgreen:
Fireypete
Posts: 25
Joined: Sat Aug 23, 2025 5:24 am
model: 750 Sport
year: 1990
Location: Australia

Re: Rear Axle Removal..

Post by Fireypete »

I'm hoping the photo loads to show my tools of the trade. Delicate...not. yep, the biggest hammer was used, all the way down to a 27 gauge syringe.
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Mc tool
paso grand pooh-bah
Posts: 1974
Joined: Wed Dec 05, 2007 12:35 am
model: 906 Paso
year: 1990
Location: Riverton New Zealand

Re: Rear Axle Removal..

Post by Mc tool »

I would be taking the swing arm pivot out too , before you put all those tools of persuasion away .
I wish I was young again............Id be heaps smarter than last time
Fireypete
Posts: 25
Joined: Sat Aug 23, 2025 5:24 am
model: 750 Sport
year: 1990
Location: Australia

Re: Rear Axle Removal..

Post by Fireypete »

oh no! you think the pivot would need some TLC? I will have a look at removing the shock from the swing arm and sees if t moves freely... Dunno.. will have a look. At least the front axle came out with just a gentle tapping with a drift, bit of oxidation on the end but not bad. Bearings on both ends nice and smooth.
Mc tool
paso grand pooh-bah
Posts: 1974
Joined: Wed Dec 05, 2007 12:35 am
model: 906 Paso
year: 1990
Location: Riverton New Zealand

Re: Rear Axle Removal..

Post by Mc tool »

Im not exactly sure how the sport swing arm is but I think the sport swing arm shaft pivots on bearings that are inside the crank case and doesnt actually contact the frame.
I wish I was young again............Id be heaps smarter than last time
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