clutch slave

[OldButNotDead]

Makes sense Doc, thanks!  I'd forgotten that the engagement screw exists.

When I got the bike back from Cadre, my initial feeling was that the clutch engagement zone had somehow shrunk, and less lever travel was needed to go from a fully disengaged to a fully engaged clutch. I was having a tough time modulating the slip-zone. That improved when I re-adjusted the CRC roll-a-click lever to better fit my hand, but more investigating will be needed. 

In principle, I don't think either the lever position or the engagement screw should affect the "width" of the clutch engagement zone, so long as they are set to operate outside the limits of the hydraulic system.

 

[Lucky Phil]

4 hours ago, OldButNotDead said:

Makes sense Doc, thanks!  I'd forgotten that the engagement screw exists.

When I got the bike back from Cadre, my initial feeling was that the clutch engagement zone had somehow shrunk, and less lever travel was needed to go from a fully disengaged to a fully engaged clutch. I was having a tough time modulating the slip-zone. That improved when I re-adjusted the CRC roll-a-click lever to better fit my hand, but more investigating will be needed. 

In principle, I don't think either the lever position or the engagement screw should affect the "width" of the clutch engagement zone, so long as they are set to operate outside the limits of the hydraulic system.

 

The probable reason for this is because now the clutch is correctly bled and this is what a normal V11 clutch feels like. Air in the system with make the action spongy and increase the clutch engagement/disengagement zone.

 

Phil

[audiomick]

13 hours ago, pete roper said:

The obvious answer to this is to make up a hose for the bleed side with a nipple on the end and run it up under the seat like the later bikes thus rendering the pain in the arse bleed a non issue!

Or just buy the part for the later bikes and fit it to your V11.

https://www.stein-dinse.com/de/ablassrohr-kupplung/item-2-1031196-05606630-.html

You need part #8, the screw, and two of part #9, the seals, as well.

https://www.stein-dinse.biz/etkataloge/etkataloge.php?l=de&h=MG&m=210&t=5004#a165229

I got one for my Le Mans, and bleeding the clutch now works like this:

Note: I didn't figure all that out by myself. The tip came from this forum.

[docc]

15 hours ago, pete roper said:

Both V11's and CARC bikes are murder on their clutch fluid. I have no idea why for sure but looking at the broken spring in your pic I'd think water intrusion has to be part of it.

Bottom line is that it is vital that the fluid be changed on a yearly/10,000km basis if problems wish to be avoided. On the CARC series bikes this is a breeze because the slave cylinder has a remote breather on the end of a hose under the seat. With the V11's of course you have the stupid nipple on the slave cylinder itself! The obvious answer to this is to make up a hose for the bleed side with a nipple on the end and run it up under the seat like the later bikes thus rendering the pain in the arse bleed a non issue!

Such good advice to freshen the clutch fluid yearly.

I reviewed my service records and see that I have rebuilt the clutch master cylinder every 100.000 km.

In the first 62,000 miles, I changed the fluid every year (8-14 months), six times. Except for once that I let it go three years.

In the second interval (68,000 miles), the clutch fluid was changed eight times averaging every other year, twice going to the three year mark. Bad docc. Bad.

Just a reminder, though, that I row my gearbox and flash my clutch like a jackrabbit on hot lava . . .

YMMV! 

[Speedfrog]

Hey @docc, while we're here, could you post the reference # for the Brembo clutch MC rebuild kit? Thx!

[docc]

20 hours ago, Speedfrog said:

Hey @docc, while we're here, could you post the reference # for the Brembo clutch MC rebuild kit? 

Edited December 4, 2023 by docc
See correct link in Speedfrog's post below.

[audiomick]

Thanks, docc. That's for the clutch master cylinder, isn't it?

           [docc edit: I posted the wrong part for the clutch master cylinder rebuild 

                      kit,  so these links are not correct, either. My bad.

                                @Speedfrog posted the correct part below. ]

For the europeans, Stein-Dinse and Wendel both seem to have an equivalent:

 

https://www.stein-dinse.com/de/bremszylinder-reparatur-satz-ps-12/item-2-1045955-17659352-.html

https://wendelmotorraeder.de/rep-satz-handgeber-12er-rund_gu17659352-w1-p-6111800.html

In fact, Wendel has two alternatives, but I'm not convinced that the price difference justifies this one...

https://wendelmotorraeder.de/bausatz-hpumpenueberholung_gu17659352-p-1001708.html

Edited December 4, 2023 by docc
docc added emphasis to correct his mistake.

[Speedfrog]

10 hours ago, docc said:

https://www.mgcycle.com/ — * — * — * — * — * — * —

[docc edit: Yes, @Speedfrog, I posted the wrong kit! Thanks for checking my (hasty) work!]

Wouldn’t it be this one instead?

https://www.mgcycle.com/index.php?main_page=product_info&cPath=110_112&products_id=5196

From the pictures it looks a lot more like the one you’ve installed. 

[Speedfrog]

Found the reference thread that confirms that...

 

[docc]

Yes, indeed. Too hasty posting the link on my part. I'll edit in a correction.....

Thanks, again, @Speedfrog'

[Speedfrog]

Got your six docc!!  

[docc]

15 minutes ago, Speedfrog said:

Got your six docc!!  

Man, I do appreciate that! 
I see my error caused @audiomick's links to be in error from my mistake. 
Sorry, y'all! 

[docc]

6 hours ago, audiomick said:

Thanks, docc. That's for the clutch master cylinder, isn't it?

           [docc edit: I posted the wrong part for the clutch master cylinder rebuild 

                      kit,  so these links are not correct, either. My bad.

                                @Speedfrog posted the correct part below. ]

For the europeans, Stein-Dinse and Wendel both seem to have an equivalent:

 

https://www.stein-dinse.com/de/bremszylinder-reparatur-satz-ps-12/item-2-1045955-17659352-.html

https://wendelmotorraeder.de/rep-satz-handgeber-12er-rund_gu17659352-w1-p-6111800.html

In fact, Wendel has two alternatives, but I'm not convinced that the price difference justifies this one...

https://wendelmotorraeder.de/bausatz-hpumpenueberholung_gu17659352-p-1001708.html

Here is the correct kit from Stein-Dinse:

https://www.stein-dinse.com/en/front-brake-master-cylinder-repair-kit-brembo-ps-13/item-2-1098059-GU28659378-.html

And from Wendel (but almost triple the cost!):

https://wendelmotorraeder.de/pump-revision-kit_gu28659378-p-1005001.html

Best Euro price at TLM:

https://tlm.nl/moto-guzzi-triumph/286593780000-revisieset-rempomp-ps13-lm1000-c1100

 

[audiomick]

2 hours ago, docc said:

 @audiomick's links...in error

 

EDIT: docc was quicker (again...) but I'll leave the post as I wrote it.

 

Ok, I went searching again. On the basis of the part number for the "correct" kit, GU28659378, I got a couple of hits.

Stein-Dinse:

no photo, so I don't trust it

https://www.stein-dinse.com/de/bausatz-pumpenueberholung/item-2-1588574-GU28659378-.html

with a photo, but it looks wrong. I think their search function had a brain fart

https://www.stein-dinse.com/de/bremszylinder-reparatursatz-ps-13-hand/item-1-1046268.html

This one looks close to right, but claims to be for a PS 13 rather than PS 12

https://www.stein-dinse.com/de/ducati-kupplungszylinder-reparatursatz-ps-13-750-sport/item-1-1001089.html

This one from Wendel looks like it might be right

https://wendelmotorraeder.de/bausatz-pumpenueberholung_gu28659378-p-1005001.html

 

seems like it is not all that easy to find the right kit.

 

another edit: PS, I have it in the back of my mind that Stein-Dinse did a complete re-build of their website a couple of months ago. It is pretty good, but I don't quite trust it completely yet. Maybe there are still a few bugs in the catalogue.

[docc]

Sure docc's quick, but can be wrong . . .

Now the matter of certain suppliers listing the kit as "PS 13" which implies 13mm, not the correct 12mm?
 

So, I used the Brembo part number, 110436292, and see the best US price from OPP Racing ($18US):

https://www.oppracing.com/product_display/202872-brembo-oe-spare-part-master-cylinder-brake-12mm-seal-set-for-front-master-110436292/