new style gear select alignment tool?

[Speeddog]

Seems as if it will only touch the rearward hook?

[BK_856er]

Seems as if it will only touch the rearward hook?

Certainly looks that way from the pic.  I'll update after I give it a go.  I also became aware of a service bulletin kit to reinforce the linkage and update one of the springs, so I want to throw that in as well while everything is opened up.

The tool was $86.  It remains to be seen how critical it is.  The entire mechanism was a bit of a mystery to me when I started, so the tool sounded like a really good idea for a successful outcome.  Now that I've studied things for a bit I think I could set up the linkage without a tool.

BK

[Speeddog]

Got a link or more info on that service bulletin?

From the looks of it, that tool just makes the adjustment nearly idiot resistant/automatic, I can see it helping on the production line.

[BK_856er]

Got a link or more info on that service bulletin?

From the looks of it, that tool just makes the adjustment nearly idiot resistant/automatic, I can see it helping on the production line.

PM'd some info to you.  Full details with pics and ride report after the install!

BK

[BK_856er]

The components of the service bulletin shifter upgrade kit come in a small box and the five included pieces are shown to the left.

Different (lighter?) harpoon spring, clip for harpoon, two bolts and a reinforcing plate for the shifter mechanism where it attaches to the case.

From what I can tell these are standard parts on some of the current SBKs.

My plan is to install the kit, a new harpoon piece and shim out some of the linkage slop with specified 0.2 thrust washers.  That and a careful adjustment.

BK

[BK_856er]

Below are pics of the installed shifter update reinforcement plate + grade 12.9 bolts, and also the proper attachment of the new style gear select alignment tool (note that pin goes under the harpoon).

The new tool seems to work well - pretty much a fool-proof method.  Attach tool, tighten linkage bolts, verify proper pin contact on both sides of the overshift stop tab, done.

BK

[junior varsity]

That's pretty cool.  These pictures are very helpful to see how it would all work before receiving one and beign lost.


question, which bikes (motors) do the update shifter reinforcement plate apply to?

[BK_856er]

That's pretty cool.  These pictures are very helpful to see how it would all work before receiving one and beign lost.


question, which bikes (motors) do the update shifter reinforcement plate apply to?

If I remember the service bulletin wording correclty...all 2v and 4v bikes...pretty much covers the bases!

BTW, you can buy the "kit" in a cute little box for $45, or you can buy the parts individually for 1/3 of that.

BK

[BK_856er]

One more piece of my ongoing shift-improvement project:  micro-bearing detent arm and spring from factory pro.

BK

[battlecry]

That is one weird website (factorypro).  Did you notice the Russia shipping option?  The M800 is not listed for the shift kit, but may be close enough to the S2R.  Let us know if it is a good thumbs up.  Thanks!

[junior varsity]

I've got one of those on the shelf for my bike and one for the other 900, just gotta put em in still. I laughed pretty hard when they gave it an "Italian sounding name"

[BK_856er]

That is one weird website (factorypro).  Did you notice the Russia shipping option?  The M800 is not listed for the shift kit, but may be close enough to the S2R.  Let us know if it is a good thumbs up.  Thanks!

Agreed - very weird site layout.  I had a bunch of communication with the owner (?) and he was very responsive.  Don't let the site weirdness put you off.  Part might cross to many other models - M695 was not listed, but they added it on the spot after I inquired.  They're somewhat local to me and I might also use them for some nemesis tuning on another bike.  I dont' have the monster fully assembeled yet, but already the shifter action feels better, more precise, more "rifle bolt action" like.  We'll see how it rides...

BK

[junior varsity]

they really do need a site overhaul. didn't see the russia shipping option, but its kind of hard to find anything specific if you are looking for it. I usually get in the general vicinity of where I think something will be, and then start hitting Ctrl+F and typing in something I think it will contain.

I got my Factory Pro micro-bearing shift detent from CA Cycleworks. Got it from a board sponsor and saved some money in the process.


Can we make a parts list? I'd like to be able to have necessary equipment & parts when I do this down the road.

Tool: 887133334 (supersedes 887131091)
Kit: 69924492A   which contains:
harpoon spring
clip for harpoon
two bolts
reinforcing plate

Ducati OEM Thrust Washer (0,2 shims): 076592205 ($1.19)
Ducati OEM Thrust Washer (0,5 shims): 040009050 ($1.49)

The original M900 shift springs and such are:
79910251A (superseded) --> 79914821A (new) ($4.26) (selector fork return spring, aka harpoon spring above)
079913110 (gear change lever return spring - the "other spring" in the assembly) ($9.21)
021407350 (the clip) ($1.09)


From the M1100 diagram:
79914821A - same selector fork spring as the one the M900 was superseded to. ($4.26)
71319151A - the plate  ($3.47)
88450341A - "the ring" (the clip from above) ($1.09)
079913110 - same lever return spring as the M900 and all Ducs from 1978 apparently ($9.21)

and if you need a new gear change fork:
18010081A - "gear change fork" ($23.39)
The two screws look to be an M8x20, and an M6x20 (77151238B, 77110263A) ($1.00, $1.21) (or at your hardware store)

So, I'm not certain that the M1100 has the same exact parts as the kit fitted from the factory, but I would lean towards that since the parts diagram finder on commoto didn't indicated "superseded". It does, however, include that plate and such, and the spring is an updated spring from what came originally on the 900, so I'm leaning towards yes?

[junior varsity]

The 695, like the M900, originally used spring # 79910251A according to this parts diagram, and like the M900, did not use that retaining plate, but used individual washers under the bolts into the crankcase.

its very handy that the shift mechanisms is the first parts diagram in the catalogs.

You 4V people: The 4V motor used the same spring in the corresponding model years, for example, the 996 also used the 79910251A spring, which has been superseded to the 79914821A.  Likewise, the latest 4V SBKs specify the same updated spring 79914821A and the same plate: 71319151A

I noticed that your tool - the 887133334 new tool (styled "Plate for Positioning Gear Engangement Fork") does not have the knob on the long side of the L as it shows in the catalog. Looks like it wouldn't be necessary or even useful by any means, though.

[junior varsity]

So, unless the 69924492A "kit" comes with different parts than what is on the new bikes, the DIY version is:

887133334  - Tool (if needed) ($86.83)
79914821A  - New Spring
71319151A  - Plate
88450341A  - Clip

Total MSRP $95.65 +/- $86.83 (Parts Required: ~$8.82)


Cost:
Shims you may need:
0,2 thickness - 076592205  - $1.09/ea
0,5 thickness - 040009050  - $1.49/ea

If you buy the two bolts, add $2.21 to the total.

The bolt sizes are listed as M8x20 and M6x20 (I'd guess they are 10.9 or so from the factory, but I don't know, they could be 8.8 - the 12.9 grade mentioned above is stronger than 10.9, and 10.9 is stronger than 8.8;

Ti could be used as a substitute in this situation, likely, as it is a suitable replacement for any Grade 9 or lower bolt, and can be used in some 10.9 applications - but its not as strong as the 12.9.  The 6Al4V Ti that I see bolts made from would have a yield strength of mid 800's MPa and an ultimate strength over 900 MPa. That's closer to steel 10.9 (940/1040) than to steel 9.8 (720/900) and certainly sufficient for steel 8.8 (660/830).

So that would be like $10 in bolts. (Exactly $10.00 + cheap USPS shipping on RaceBolts.com, for example).