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Registered
Join Date: Dec 2003
Location: Albany, GA
Posts: 4,574
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Replacing slave cylinder
Quick question. I've removed the old, leaking clutch slave cylinder. What's the best liquid to clean inside where the cylinder slides? There's crud in there and I've used q-tips to clean most of it, but it looks like I need to flush the last little bit of crud out. I don't want to do anything to damage any seals or contaminate the new slave cylinder.
Suggestions? |
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06-05-2010, 07:34 AM
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Join Date: Oct 2000
Location: Bozeman Montana
Posts: 3,063
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Alcohol
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06-05-2010, 09:23 AM
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Registered
Join Date: Dec 2003
Location: Albany, GA
Posts: 4,574
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I've drank a 6 pack and hasn't helped a bit....
Thanks EZ. I used up about 30 qtips and half a bottle of alcohol. Putting it back together now. |
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06-05-2010, 09:54 AM
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Registered
Join Date: Aug 2002
Location: Newfoundland
Posts: 93
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Slave cylinder replacement
Still funny..will have a 6 pack in my garage just in case!
Undertaking replacement of the leaky cylinder tomorrow night. Any other tips? Phil
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Dive the worlds underwater museums at www.shipwreckcentral.com |
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06-19-2013, 02:23 PM
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Join Date: May 2005
Location: Fort Mill s.c.
Posts: 2,631
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I would use brake cleaner. I am not a aerosol fan, because I am a part time tree hugger, but it works well and the spray tip is a large orifice type so you get blasting action. But, once clean and the bore being dry make sure the new seals are lubed w/ dot 4 or whatever is recommend.
be safe, Lane
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2005 Boxercup, 2013 R1200GS Rallye, 2011 Triumph 675 Daytona, Honda MB5, 2011 KTM300xc, 1975 Bultaco, 1992 Beta, 1972 Aermacchi |
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06-19-2013, 02:28 PM
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I see you
Join Date: Nov 2002
Location: NJ
Posts: 29,867
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Are you guys able to drill a wee drain hole in the casing? So future leaks stay out of the clutch.
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Si non potes inimicum tuum vincere, habeas eum amicum and ride a big blue trike. "'Bipartisan' usually means that a larger-than-usual deception is being carried out." |
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06-20-2013, 04:55 AM
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unsafe at any speed
Join Date: Dec 2003
Location: Arkansas
Posts: 12,315
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Not in favor of the weep hole. The end of the clutch pushrod fits into a greased bearing that is part of the slave cylinder assembly. The weep hole will let rain and road scuz into the bearing assembly and cause premature failure.
I would suggest flushing the fluid every couple years to prevent seal failure.
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Bill Swartzwelder 2002 R1100S Prep/ 2024 Tenere 700 Last edited by wswartzwel; 06-20-2013 at 07:08 AM.. |
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06-20-2013, 06:51 AM
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unsafe at any speed
Join Date: Dec 2003
Location: Arkansas
Posts: 12,315
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This is from a 04 R1150R I did for a customer yesterday. The top piece is the slave piston, the middle piece is the throwout bearing that the rod fits into and spins when the clutch rod is pressed against the pressure plate. This one failed due to no lubrication in the bearing, and it welded itself to the clutch pushrod from friction heat.
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Bill Swartzwelder 2002 R1100S Prep/ 2024 Tenere 700 |
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06-20-2013, 07:04 AM
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Registered
Join Date: Aug 2002
Location: Newfoundland
Posts: 93
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Slave Cylinder
The fluids were changed every 2-3 years but with 112,000 kms (69,000 miles) I cannot complain.
Wswartzwel, I am replacing the slave cylinder in the bike. Am I correct to assume lubricating at the throwout bearing involves a further disassembly? Your thoughts? Many thanks! Phil
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Dive the worlds underwater museums at www.shipwreckcentral.com |
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06-20-2013, 08:18 AM
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unsafe at any speed
Join Date: Dec 2003
Location: Arkansas
Posts: 12,315
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no. new one comes pre greased. i would slide the rod out and put a dab on the front tip though
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06-20-2013, 08:47 AM
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Registered
Join Date: Sep 2001
Location: Kenmore, WA
Posts: 4,381
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Quote:
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RBMann- The road is his workshop, and his trips are opportunities to do much needed repairs. -Bill S. * 2000 S, color-Salmon 108K+ -sold * '17 Africa Twin-totaled* '09 F650GS twin-sold * '83 GPZ 550-gone to a newbie * '75 CB400F-retired to AZ. |
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06-20-2013, 10:35 AM
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unsafe at any speed
Join Date: Dec 2003
Location: Arkansas
Posts: 12,315
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The bearing in the slave cylinder is the throwout bearing. A dab of grease on the front end of the rod helps keep the diaphragm spring from wearing.
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Bill Swartzwelder 2002 R1100S Prep/ 2024 Tenere 700 |
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06-20-2013, 11:32 AM
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Registered
Join Date: Sep 2001
Location: Kenmore, WA
Posts: 4,381
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I was thinking of cars where the throw out bearing is up against the clutch. From
"R1100s4me' post it sounded like he was doing the same when he asked about further disassembly. Didn't want him tearing the bike in half looking for the bearing on the front end of the rod.
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RBMann- The road is his workshop, and his trips are opportunities to do much needed repairs. -Bill S. * 2000 S, color-Salmon 108K+ -sold * '17 Africa Twin-totaled* '09 F650GS twin-sold * '83 GPZ 550-gone to a newbie * '75 CB400F-retired to AZ. |
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06-20-2013, 04:54 PM
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unsafe at any speed
Join Date: Dec 2003
Location: Arkansas
Posts: 12,315
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Gotcha... I tend to use old school nomenclature regarding the function of the parts.
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Bill Swartzwelder 2002 R1100S Prep/ 2024 Tenere 700 |
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06-21-2013, 04:23 AM
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Registered
Join Date: Aug 2002
Location: Newfoundland
Posts: 93
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All worked out fine, pulled the shock back without removing wheel. A few acrapes later and reverse filling from the bleeder line with a syringe (60 ml catheter-insert old man joke here) was fairly easy with patience.
Minor slippage the first two harder acceleration twists but a ride along the coast and with friends and all is good! Cheers all! Phil |
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06-24-2013, 06:49 PM
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