removing magnet basket from flywheel?

[Privateer]

04 620, 49,009m

I had the opportunity to pull my side cover off today and when I did there's lots of oily crap inside the clutch slave.

the push rod o-rings are new'ish, and this is the second set I've gone through in the last 43k miles.


normally I'd just replace the orings, but this seems to be a recurring thing now and I'm not sure what the problem is.

any ideas or suggestions?

[sofadriver]

seems like you need some "new-er'ish" o-rings 

[Privateer]

seems like you need some "new-er'ish" o-rings 

yeah, I'd think so too, but seems to be a recurring problem and I'm just putting a band aid on it.

the last set I put on in September 2011, around 5,000 miles ago.. seems kind of soon to me.

[koko64]

Stiction in the pressure plate bearing could spin the push rod and take out the o rings and even later spin the slave piston, taking it out.

[brad black]

is it oil or brake fluid?

[jgrm1]

I've wondered why the fluid quickly turns dark in the clutch reservoir on my S2R1000 and other Ducatis.  I just did a fluid change and it is already turning.  Is there a relationship here?

-Jeff   

[Privateer]

is it oil or brake fluid?

it looks like oil to me and my clutch fluid is almost brand new.  Of course I don't really have a way to distinguish oil from dirty clutch fluid.

Stiction in the pressure plate bearing could spin the push rod and take out the o rings and even later spin the slave piston, taking it out.

hmm i was wondering about that last night.  I'm not worried about the slave piston, it has a bearing to manage the spin.  I guess I'll be pulling off both sides now.

[Slide Panda]

it looks like oil to me and my clutch fluid is almost brand new.  Of course I don't really have a way to distinguish oil from dirty clutch fluid.

hmm i was wondering about that last night.  I'm not worried about the slave piston, it has a bearing to manage the spin.  I guess I'll be pulling off both sides now.

There's an easy way - brown paper bag. Get some of that fluid on it. Oil will be.. oily turning the paper translucent and won't evaporate. Brake fluid will be more like water.

[Privateer]

There's an easy way - brown paper bag. Get some of that fluid on it. Oil will be.. oily turning the paper translucent and won't evaporate. Brake fluid will be more like water.

good tip, thank you.


I ordered a ca cycleworks gasket today, i'm going to pull the clutch cover when it shows up and check the throw out bearing for good measure.

discovered a leaking fork seal too.  not my week for motorcycles apparently.  40k miles seems to be, for me, when stuff starts to fail.

[ducpainter]

it looks like oil to me and my clutch fluid is almost brand new.  Of course I don't really have a way to distinguish oil from dirty clutch fluid.

hmm i was wondering about that last night.  I'm not worried about the slave piston, it has a bearing to manage the spin.  I guess I'll be pulling off both sides now.

taste it...

[Privateer]

since I'll have the clutch side cover off, when is a good time to replace the clutch pack?

I don't feel it slipping, but I envision it being a boiled frog kind of thing.

Is there something to look for that will indicate it's due to replace?

[Howie]

Steels not scored or blue?  They are still good.  There is a spec on friction disk thickness, off hand I don't know what it is, I will look it up later.  ^ speed or 5 speed?

Over 60K on my original clutch , so don't be surprised if all is well.

[Speeddog]

Howie, his 620 is a 6-speed.
Parts manual says it's an APTC clutch.

There is a minimum thickness spec on the plates.

OEM plates are the best replacements I've found.
APTC plates are different from the early 'standard' plates.

[Privateer]

Howie, his 620 is a 6-speed.
Parts manual says it's an APTC clutch.

There is a minimum thickness spec on the plates.

OEM plates are the best replacements I've found.
APTC plates are different from the early 'standard' plates.

thank you nick and howie.

I was at the dealer getting crush washers last night.  The throwout bearing is ~$55 and the clutch pack is ~$360 so I'll need to wait for another paycheck on that one.

[Privateer]

well that didn't work. 

Only getting 9v at the battery.  Jumped off my car to get it running, tried to check the voltage at the stator and the connector was hot with a scorch mark.  Too frustrated to work on it more, so I'll have to try again tomorrow, see what kind of voltage the stator is putting out.   really really hoping I didn't fry the stator again.

/sigh