Anyone who owns a Quota 1100 ES or knows someone that does? I need some information concerning the gear selector mechanism.

[p6x]

Here's the drawing of the gear selection mechanism:

I have now had twice the shift lever item 12 coming off item 10 gear selection lever.

o'ring items #14 is what limits the lateral movement of the shift lever item 12.

I believe I am missing the spacer #15 and bushing insert #17 that keeps the first o'ring in place. The axe of the shift lever has two grooves in which the o'ring sit. In my situation, there is a 7mm lateral play, and with repeat gear changes, get the shift lever off the gear selection lever. The spline holder eventually gets out.

If anybody knows someone who possess a Quota, please ask if they can give me the dimensions of item 17 and 15. For item 15, I should be able to find a washer here in the USA. For item 17, it would need to be a precise measurement, given that it goes around the selector axe and inside the sleeve that holds it.

I don't think I could find it so I will need to have it manufactured.

[docc]

The description in the Parts Catalogue sometimes specifies dimensions, especially for items like that washer.

What are the Moto Guzzi part numbers of the two items?

[Tomchri]

If it is a spring there, take it of. Just a washer. Probably hard to take picture from underneath, to see whats missing. Stainless pipe in correct dim shoud'nt be to hard to find. The lever shoud be sitting fine in the frame bracket, #17 is just taking up the play. Just my thoughts.

Cheers Tom.

[Lucky Phil]

If 12 keeps coming off 10 the lever arm it's not related to the missing shift lever bush. More likely an issue with the lever or the arm itself. Spline condition or clamping action etc. The spring shown in the image isn't std I don't believe and the only measurement for the bush worth having is from an unused bush. You might just have to measure the ID of the frame support for the shift lever and the OD of the shift lever shaft itself and make or source your own bush if you can't buy an oem one. Old bike engineering.

[p6x]

3 hours ago, docc said:

The description in the Parts Catalogue sometimes specifies dimensions, especially for items like that washer.

What are the Moto Guzzi part numbers of the two items?

I checked Stein Dinse; item GU90706141, GU28252060 are out of stock, but they list an alternative. I am not sure if the alternatives fits.

GU30250730 is out of stock and without any alternative.

See below the Stein Dinse search and the Leva commando cambio nomenclature page.

[p6x]

2 hours ago, Lucky Phil said:

clamping action

The morse is working fine in that it keeps both splines together, so the rotational movement is transmitted. It is not supposed to serve as a lateral stop though.

I believe the two o'rings are what limit the lateral movement. The gear shift lever axe has a groove that I could see. There are two bushings indicated in the nomenclature, only one shown on the drawing. I believe both o'rings are separated by a bushing, and the spacer prevents the assembly to move laterally using the o'rings as stops. It seems difficult to understand why the o'rings should be used to limit the lateral movement, since they wear out.

There should not be a 7mm play, and the splined end of the gear lever is currently what prevents the shift lever to fall out but it is not designed for that..

Tomorrow I will disasemble it again, and take out the shift lever to check if at least one of the bushing remained inside.

Edited March 3 by p6x

[Lucky Phil]

31 minutes ago, p6x said:

I checked Stein Dinse; item GU90706141, GU28252060 are out of stock, but they list an alternative. I am not sure if the alternatives fits.

GU30250730 is out of stock and without any alternative.

See below the Stein Dinse search and the Leva commando cambio nomenclature page.

Std bush. Buy them anywhere for far less.

https://www.sp-spareparts.com/en/p/egb-1615-e40-b-ina?srsltid=AfmBOopEQweX5noDan8IK06-n8jMwp2x23nsWgj79duzIrKvL2X86Efe

 

Phil

[activpop]

McMaster-Carr?

[p6x]

I found a gear shifter lever for sale on eBay, and it seems to have an identical spring washer as on mine. So perhaps this is what is referenced as item #15.

I found both missing items available from AF1racing.com. 1 o'ring for 4.04 USD!!!

I am going to check if the Stein Dinse dimension is a match ID=17.8mm and CS=1.8mm, and order a bag from Parker.

Edited Monday at 05:29 AM by p6x

[gstallons]

Are you referring to an actual o-ring or the wave washer ?

[gstallons]

When you have this back together , are you using the pinch bolt 10 to clamp the gearchange lever to the 12 shaft of the shift lever ? This is what holds these two components together and should keep them from sliding apart.  

Also , when you finish this project , you can drill / tap for a grease fitting on the bike frame where this lever pivots and be done w/any future problems.

[p6x]

48 minutes ago, gstallons said:

Are you referring to an actual o-ring or the wave washer ?

Affirm.

I need to remove the shift lever to see where the second o'ring sits, and if any other bushing is missing.

[p6x]

34 minutes ago, gstallons said:

When you have this back together , are you using the pinch bolt 10 to clamp the gearchange lever to the 12 shaft of the shift lever ? This is what holds these two components together and should keep them from sliding apart.  

Also , when you finish this project , you can drill / tap for a grease fitting on the bike frame where this lever pivots and be done w/any future problems.

The gear lever morse around the spline of the shift lever is clamped using that nylstop nut. But this is to make sure the spline are locked to transmit the rotational movement. Mechanically, this is not a lateral grip.

If I had a pedestal drill, I would drill the center of the shif lever on the spline end, thread it, and install a hex head screw with a flat washer larger than the gear lever morse. This would guarantee any futher disconnect. My current understanding, from just looking at the drawing, is that the o'rings are what prevents lateral movements. I believe they are installed in between the two bushings, item #17.  If you look at the picture of the selector in my previous post, you can see the surface where the bushings are in between the shift lever and the sleeve that holds it. I need to find out where those o'ings are supposed to go. I do not seen any other reason for having o'rings there, do you?

That sleeve's walls don't look thick enough to accomodate a Tecalemit grease nipple, I think.

[p6x]

10 hours ago, p6x said:

I am going to check if the Stein Dinse dimension is a match ID=17.8mm and CS=1.8mm, and order a bag from Parker.

I found this supplier in Virginia: each o'ring is 0.05$ I still need to ascertain that this is the correct size. They seem to have all the o'ring in metric sizes, so it maybe worth keeping the supplier handy.

https://www.oringsandmore.com/metric-buna-o-rings-17-8-x-1-8mm-minimum-20-pcs/

[gstallons]

IF this shifter assy. is on the bike and is working condition, move the shift lever up and down and verify the foot lever and the lever inside the frame have no slack and this is tight . Morse = ? are you referring to the splines ?

 These 0-rings are nothing more than dust shields to keep out "bad stuff" and the wave washer or spring keeps the side (in & out) motion to a minimum . IDK how thick this frame tube is where the shift shaft goes through. I drilled / tapped the shift lever (not the frame) on the red frame for a grease fitting to keep the shift lever happy. You will have to see what you have to work with and decide if you can do this .