Moto Guzzi 0106 6330 vs. Aprilia 85221R

[Cold Desert Rat]

 

The exterior dimensions are identical.

The bolt circle, body diameters and steps, bores, etc.

The Aprilia part only uses one port. One would need a banjo bolt with a bleeder on it. I find that acceptable

There are some other differences.

[Cold Desert Rat]

I only dimensioned the differences

Oddly the cylinder off my bike had no spring

It fits like it should on the trans.

[Cold Desert Rat]

A drawing showing how much travel.

I assume the bottom of the piston never comes past the bottom seal.

[Cold Desert Rat]

A company called Oberon makes a billet version, lifetime warranty, p/n CLU-2800

The smart guys on here will determine if the stock pushrod will work. I have to make a new one anyway, so it's irrelevant to me.

We knew somebody else had to use that cylinder

[docc]

Welldone, @Cold Desert Rat!   

One for the Encyclopedia of Compatible Parts ?

Source/ typical pricing?

[Cold Desert Rat]

Hey DOCC,

I like the Oberon. Lifetime warranty, super fancy seal design and many shiny colors. About $150USD

As I recall    AF1 wanted $25 for a new Aprilia cylinder but said it would take four months to get

I would be honored to have my contribution added to our august assembly. Truly, I am humbled

 

[audiomick]

Well done, that man.

 

Please let us know what you find out about the pushrod.You know, longer, shorter, whatever...

[Lucky Phil]

6 hours ago, Cold Desert Rat said:

Hey DOCC,

I like the Oberon. Lifetime warranty, super fancy seal design and many shiny colors. About $150USD

As I recall    AF1 wanted $25 for a new Aprilia cylinder but said it would take four months to get

I would be honored to have my contribution added to our august assembly. Truly, I am humbled

 

Thats about 20% what the rest of the world want for them. I think AF1's pricing might be a little suspect.

 

Phil

 

 

[Cold Desert Rat]

Does anyone know or have a reference as to how far the clutch rod has to move to disengage the pressure plate?

Different for single or twin disc clutch?

[Cold Desert Rat]

I'm not a hydraulic engineer and don't want to be one.

So I ask hoping and expecting correction.

Regardless of possible range of motion of the slave cylinder, it's the volume displaced by the master cylinder that determines how far it moves.

In other words it can't move further than the master cylinder can push.

Do I have that right? thx

[gstallons]

The volume of fluid "pushed" by the master cylinder has to go somewhere , so it goes into the slave cylinder . 

 Leverage works in this system but it has nothing to do with the volume of fluid moved.

[Lucky Phil]

9 hours ago, gstallons said:

The volume of fluid "pushed" by the master cylinder has to go somewhere , so it goes into the slave cylinder . 

 Leverage works in this system but it has nothing to do with the volume of fluid moved.

Not quite right. The ratio area of the master to the slave cylinder determines the force that can be applied (and the lever ratio as well but we'll leave that) and the "travel" of the master and therefore the volume of fluid displaced determines the travel of the slave.

 

Phil

[gstallons]

10cc of fluid leaving the master cylinder will be 10cc of fluid added to the volume of the slave cylinder.  

 Now as far as the leverage portion goes it depends upon the size of the slave cylinder vis-a-vis master cylinder bores. The hydraulic jack proves this point.

[Cold Desert Rat]

Here's another dumb question while I am at it.

Which is the #1 cylinder and why?

[audiomick]

What do you mean by #1 cylinder?