DucaBike Slave cylinder and 2013 EVO M1100 - solution found! pics!

[Skybarney]

Okay I may have found yet another part that the manufacturers think fit 2013's.  Took my stock one off tonight for a swap and noticed several things.

1. The pushrod on the EVO has a pin in it.  The stock cylinder has a plastic piece that goes over the pushrod with a slot for the pin in the pushrod.
2. The DucaBike has no slot for the pin and the cylinder on in rest solely against the pin.  This leaves a 1/4 inch gap behind the slave.
3. When using the supplied ball bearing with the stock slave there is zero chance to bolt it in tight as the cylinder bottoms out 1/4 inch before the slave is bolted to the case.
4. To top all that off I can't get the damn thing to bleed for the life of me.  Not manually and not with the shiny air compressor powered bleeder I just bought.  

Off to buy a mighty vac in lieu of the air compressor powered version as I may not have enough CFM to run it properly.  Still not sure what to think of the slave as such I will post pics before I put it back to stock tomorrow.  

Should'a been simple as I did the research and watched the videos......

[brad black]

the pin in the pushrod is to stop it spinning I assume, not sure how that solves the occaisional issue of the pressure plate bearing seizing and spinning the pushrod.  if the bearing gets shitty it's just going to smash it all up surely.

i'd just remove the pin, put the plastic piece in to fill the gap and leave it at that.  is there a reason you can't do that?

why are you using the supplied ball bearing with the stock slave?

[Skybarney]

Thanks for the response!  I quickly saw that the ball bearing did not belong.  No instructions      Maybe if I remove the pin from the pushrod and don't use the plastic spacer it would work.  The spacer will make the body of the slave sit to far out to be bolted snug.   Pics later,  Also going to buy a nice Mighty-Vac.  The pneumatic one I got blows......  I would say it sucks but it does not lololololol.

Pics up later. 

[Skybarney]

Okay I found the problem.  Perhaps I got the wrong slave cylinder from Ducabike, perhaps not.  I do not have an answer at this time.

As you can see from the pictures below there is a huge difference between the Ducabike slave I got, the stock slave and the Oberon slave.

The Ducabike slave looked like this:



The Oberon looked like this:

The stock slave looked like this:


Stock pushrod and pin.


As you can see there is a huge difference between the stock and the Ducabike slave.  Fiddle as much as I like and the Ducabike slave will still not fit.  It will in fact, use the entire piston to push against the pin in the pushrod to have any effect.  Due to the gap between the case and the pin in the pushrod it would be impossible to use the Ducabike Slave without a massive amount of goo building up on the pushrod.  Not good.  Not to mention a plastic (delron) piston pushing against a metal pin. Not good......

The Oberon fit instantly.  Bled out the system and it works great!  

BTW do not waste your money on anything besides a Mighty-Vac..............  the Griot's garage bleeder did not have enough airflow off my 5CFM compressor to work.  Should you have a giant compressor I will happily sell you the Griots garage pressure bleeder....  CHEAP!