So where has this come from?

GRiSO Capo Posts : 1657 Join date : 2014-09-22

So i have taken the swing arm off and applied grease to all of the bearings in the suspension and swingarm, took the shock off and cleaned it up, a job i have put off since i bought the bike a couple of years ago. While i was taking the swing arm off, this bush dropped on the floor. I had the two footrest plates off, the rear wheel, disconnected the rear brake and the torque arm, as you can see from the bottom photo.

i have now put most of it back together, thinking that it will be obvious where it fits as its a large bush, but i have not found a home for it.

Can someone shed some light?

[You must be registered and logged in to see this image.]

GRiSO Capo Posts : 361 Join date : 2014-09-02

Not sure, but it looks like a back wheel spacer bushing (cant remember for sure), its been a while since I had the swing arm off,

Someone will be along shortly with a definitive Exclamation

Grignapoco Posts : 137 Join date : 2014-11-04

Shock pivot bush, I think.

GRiSO Capo Posts : 10711 Join date : 2013-05-29 Age : 67

Good call. What's the ID? And the OD of the spigot?

GRiSO Capo Posts : 1657 Join date : 2014-09-22

Pete Roper wrote:: Good call. What's the ID? And the OD of the spigot?

ID 10mm OD 16mm

GRiSO Capo Posts : 1657 Join date : 2014-09-22

fredfrenzy wrote:: Shock pivot bush, I think.

top or bottom? would there not be two?

GRiSO Capo Posts : 1657 Join date : 2014-09-22

Guzzi Cat wrote:: Not sure, but it looks like a back wheel spacer bushing (cant remember for sure), its been a while since I had the swing arm off,

Someone will be along shortly with a definitive

Now that is interesting as i thought it fell out when i moved the wheel, but cannot see where it would fit?

GRiSO Capo Posts : 1657 Join date : 2014-09-22

The manual i have does not show a good parts explosion, anyone have one?

thanks for the help

GRiSO Capo Posts : 1657 Join date : 2014-09-22

OK so found some parts diagrams here

[You must be registered and logged in to see this link.]

going through them now

GRiSO Capo Posts : 1657 Join date : 2014-09-22

found it!!!

[You must be registered and logged in to see this link.]

Number 10!

Grignapoco Posts : 137 Join date : 2014-11-04

Yes fits in the swing arm.

[You must be registered and logged in to see this image.]

GRiSO Capo Posts : 1657 Join date : 2014-09-22

fredfrenzy wrote:: Yes fits in the swing arm.

[You must be registered and logged in to see this image.]

looks like i will be taking some of it apart again!

many thanks

GRiSO Capo Posts : 10711 Join date : 2013-05-29 Age : 67

Win! Nasty if you left that out!

Grignapoco Posts : 137 Join date : 2014-11-04

Pete Roper wrote:: Win! Nasty if you left that out!

Better to find it now ....

Grignapoco Posts : 135 Join date : 2016-11-26 Age : 56

Hi, just in case that you haven't put everything together yet, can you please measure the diameter of the bush that holds the swing arm axis? The one that has the 4 ingots - also how wide those ingots are?

I'll also take off the swingarm to grease the joints, I'm thinkng of making a "special tool" for this, by grinding a hex socket, having it ready would be nice. Thanks.

GRiSO Capo Posts : 1657 Join date : 2014-09-22

avgpetro wrote:: Hi, just in case that you haven't put everything together yet, can you please measure the diameter of the bush that holds the swing arm axis? The one that has the 4 ingots - also how wide those ingots are?

I'll also take off the swingarm to grease the joints, I'm thinkng of making a "special tool" for this, by grinding a hex socket, having it ready would be nice. Thanks.

Hi, that wont need to come off to replace the bit i need to fit, sorry. I used a simple c spanner for the rear shock for mine :-)

Don Abbondio Posts : 25 Join date : 2014-06-17

Win! Nasty if you left that out! wrote:

What is the purpose of this T-bush? When I regreased my suspension needle bearings on my B11, the Guzzi dealer had place this on the OUTSIDE of the swingarm, acting like a washer for the bolt nut. (I'd had some warranty work done on the gearbox years before and they were the only ones who could have touched it).

Rode 50,000km without adverse affect!

GRiSO Capo Posts : 10711 Join date : 2013-05-29 Age : 67

Apart from the bottom shock mount being able to slide about on the bolt the bolt itself would be unsupported along a lot of its length. Big stress raiser on the bolt and a torsional stress on the swingarm boss.

Pete

Guest

avgpetro wrote:: Hi, just in case that you haven't put everything together yet, can you please measure the diameter of the bush that holds the swing arm axis? The one that has the 4 ingots - also how wide those ingots are?

I'll also take off the swingarm to grease the joints, I'm thinkng of making a "special tool" for this, by grinding a hex socket, having it ready would be nice. Thanks.

Petros, don't stress about the castellated nut torque setting or tightness, it is barely more than finger tight.
The 2 pinch bolts in the swingarm keep it in check. Overtighten the nut and you'll be stressing the tapered roller bearings.

At most a 'C' spanner will be the only "special" tool required.

GRiSO Capo Posts : 10711 Join date : 2013-05-29 Age : 67

Yup. The cast elated nut just preloads the tapered rollers. Do it the same as a trailer wheel bearing.

Pete

GRiSO Capo Posts : 1657 Join date : 2014-09-22

Motoguzzimackers wrote:: What is the purpose of this T-bush? When I regreased my suspension needle bearings on my B11, the Guzzi dealer had place this on the OUTSIDE of the swingarm, acting like a washer for the bolt nut. (I'd had some warranty work done on the gearbox years before and they were the only ones who could have touched it).

Rode 50,000km without adverse affect!

It should be in the inside, the connecting block is offset in the swing arm and there is a larger gap on the exhaust side, which gets filled by the flange on the bush. If you remove the rear wheel and peer at the suspension you will see the gap. I would guess that you will just stress the swingarm with the bolt otherwise, as the bush is shorter than the thickness of the swingarm, and is used as the butt for the roller bearing internal spacer.

It was a nice tight fit, when i put it back in and all makes sense :-)

Don Abbondio Posts : 25 Join date : 2014-06-17

Thanks Sid and Pete. I'll go and check that I put it in the correct side.