Rear suspension warn

[Marinus]

There is some slack in the rear suspension where the bottom of the shock is connected. If the bike is on the center stand and I put weight on the rear hand grab the bolt moves a little in the aluminum yoke. There doesn’t seem to be any wear in the ball joint of the shock. This makes sense as the yoke is aluminum and the ball joint is steel.
Has anyone had this problem? Did you fix it by sleaving the yokes? Is this the best option?
I’m not looking forward to taking it apart because I’ve been enjoying the awesome riding weather here but The bike failed it’s warrant of fitness on this and the headlight despite the 75w bulb and relays.
I can't imagine that I'm the first as my bike has only done 23,000km and most of the Paso's have done allot more.

[persempre907]

I'm wondering! Are you sure the bike has only 23.000 km ?
Have you tried to tighten the bolts?
Ciao

[Marinus]

Last night I tightened all the bolts and this has helped. It is actually hard to see where the slack is.

(my wife's rear end is tight and she is not heavy enough to push the back of the bike down when on the centre stand but it would have made a great photo of her standing on a chair, bent over the back of the bike pushing down on the grab handle :lick: ).

I think there may be a little in several of the joints as well as maybe a little in the main swing arm bearings. The thing is that bottom link doesn't rotate as the shock ball has movement in it.

As for the 23k who really knows but when I look at the condition of the bikes frame, electrics and the outside of the motor compared to others I have seen photos of on this site, it looks almost new. Although the body work has been resprayed due to falls. Under the skin is still original

[Marinus]

It's quite normal for bikes in this country to have done very little Km's as New Zealand is only 2000km long and not very wide. There are lots of nice windy roads so most people only use their bikes for short day trips. Ducati's are not often used as comuters.
Alot of our bike have come in used from Japan where they don't do many km either. I have seen a 1990 BMW K1 with only 7km on the clock. I guess someone took it home and parked it and then never used it for 16 years.

Look at this
http://www.trademe.co.nz/a.asp?id=83648186

or this http://www.trademe.co.nz/Browse/Listing ... &key=20214

[motiztab]

If you mean this part, then yes the same happened to my bike at 19000miles.

Was offered a good used part for £70! in the end just knocked the bearings out and replaced them.
All the wear I found in the bolts and in the bearings.
The bearings are stardard off the shelf items so your local bearing supplier should have them.
The only items i could not get are the spacers.
You can see the wear hear

[persempre907]

http://www.trademe.co.nz/a.asp?id=83648186

:lick: :lick: :lick: :lick: :lick: :lick: :lick: :lick: :lick: :lick:

How much would cost the shipment in Italy???

I'm joking, but it's a very pity the NZ is so far from Italy....

Ciao

[Marinus]

How much would cost the shipment in Italy???

Thats only 4500 EURO

Motiztab. Thanks for the photos. That is the area of concern. There is only a of cm of vertical play at the rear wheel when on the centre stand which amounts to fractions of a mm at each joint.
What did you do about the wear on the bolts.

This one is the one that seems to have the most play in it. Strange I know as there is no bearing because of the ball at the bottom of the shock. My guess is it was to lose and was able to rotate or vibrate.

[motiztab]

Marinus

Yes thats what my bike was doing. What happens is that a small amount of ware takes place on each bolt and combine that with the ware in the bearings gives you a lot of movement.

Unlike my other bike (triumph) which also is a mono shock the Paso does not have any grease points therefore the only way to keep these clean is to take them all apart and clean/ refit them, this is due to the seals which fail after a period of time and allow water and road grit to get inside and from a grinding paste with the grease.
The needle bearings of which there a four, two types and the seals again four but this time are all the same as I said you should be able to get. The long spacers which slide inside the bearings which is what you clamp up to you connot get anymore. Bolts again can be obtained either from Ducati or a bolt supplier.
I changed all apart from the two spacers. By doing this I lost all the play in mine.

[Marinus]

You don't by chance have the bearing and seal spec's do you? Then I can get all the parts here and have it back on the road ASAP . With the weather so good here there is hardly a day goes by that I don't get out for a squirt.

[motiztab]

I think they were 2020 and 2030.
But I do know that they were standard bearings. If you hook out a seal and knock one of each bearing out if you have a decent bearing supplier they should have them on the shelf. I got mine from Henderson bearings
INA HK 2030TU was the number one bearing so the other must have been INA HK 2020. What I do know was when I asked Baines Racing they said the seals would be hard to find, strange that as Henderson kept them in stock.

Another point have you taken the rocker arm out yet? If so the rest of this will not matter if not then read on.
On my bike one of the bolts draws out from the left, i think it was the lower shock bolt. The only way to get the rocker arm out was to take the complete exhaust system off! The rear cylinder down pipe is in the way stopping you from getting the bolt out. As I said not sure with out looking as to if it was the lower shock bolt or one of the others but either way the exhaust had to come off so you will need a couple of exhaust gasket rings for the head!