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Slave Cyl Pushrod

Started by peaveybassist, November 21, 2008, 04:29:11 PM

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peaveybassist

The rod that the slave cylinder pushes on to operate the clutch, accessed from the left side behind the slave cylinder, which direction does it go into the case? The end with the 2 o-rings 1st? Or the o-rings last?

Will

BK_856er

Quote from: peaveybassist on November 21, 2008, 04:29:11 PM
The rod that the slave cylinder pushes on to operate the clutch, accessed from the left side behind the slave cylinder, which direction does it go into the case? The end with the 2 o-rings 1st? Or the o-rings last?

Will

Installing from the slave cylinder side, the end with the 2 o-rings goes in last.  Lube up the o-rings a bit before inserting the rod.

BK

peaveybassist

Thats what I thought. Just double checking. Mine leaks from behind the slave cyl, and it is leaking engine oil, not clutch fluid. The clutch fluid level never goes down. Should I just change the 2 o-rings and the red oring behind the slave cyl?

BK_856er

Quote from: peaveybassist on November 21, 2008, 08:01:54 PM
Thats what I thought. Just double checking. Mine leaks from behind the slave cyl, and it is leaking engine oil, not clutch fluid. The clutch fluid level never goes down. Should I just change the 2 o-rings and the red oring behind the slave cyl?

Yep, that's the first thing to try - cheap and easy - p/n 938232018.

New clutch pushrod o-rings on my '07 M695 to fixed a small leak.  Install them onto the rod carefully, lube with some white lithium grease, clean the bore in the engine case before reinserting the rod.  I also put a tiny dab of moly grease on the ends of the pushrod.

The alternator cover can also develop a leak in that region, but the pushrod o-rings are the first thing to try.

I think the larger o-ring for the slave is just to keep it clean inside.  The slave flange has a weep groove, so fluid will find its way out anyway.

BK

Slide Panda

Quote from: BK_856er on November 21, 2008, 10:22:08 PM
Yep, that's the first thing to try - cheap and easy - p/n 938232018.

New clutch pushrod o-rings on my '07 M695 to fixed a small leak.  Install them onto the rod carefully, lube with some white lithium grease, clean the bore in the engine case before reinserting the rod.  I also put a tiny dab of moly grease on the ends of the pushrod.

The alternator cover can also develop a leak in that region, but the pushrod o-rings are the first thing to try.

I think the larger o-ring for the slave is just to keep it clean inside.  The slave flange has a weep groove, so fluid will find its way out anyway.

BK


Spot on.  The o-rings on the push rod wear with time and become flattened, letting oil seep by.  And as BK noted, one can develop a leak between the alternator cover and main case - The latter scenario happened to me.  I thought it was the o-rings at 1st, but replacing them failed to stem the oil.  After a lot of prodding, I was down on a knee by the slave with a bright light, while pulling the clutch lever (got long arms) and I saw that when I pulled the lever, the alternator cover would pull away from the main case, ever so slightly.

So if replacing the o-rings doesn't work, start looking at the seam between the two case pieces.  A good light hitting it at an angle and some pumping of the clutch lever while looking might reveal something
-Throttle's on the right, so are the brakes.  Good luck.
- '00 M900S with all the farkles
- '08 KTM 690 StupidMoto
- '07 Triumph 675 Track bike.

peaveybassist

I changed that stator cover gasket first actually. I have over 15k miles on it so I'll be its just those 2 orings on the pushrod. I will order those up this week and get them changed and see what happens.

Will