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05-31-2017, 11:43 AM | #1 |
Advanced Member
Join Date: Dec 2009
Location: Cleveland Ohio
Posts: 714
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My clutch slave cylinder saga.
So, I have seen this mentioned a couple of times but never really paid much attention. On my recent trip out west with the wife on day three my clutch slave cylinder started sticking. Causing the clutch to slip. It was also making a pretty bad squeaking noise as it was depressed. This was after a ton of rain on day two. After warming it up it was fine. That night I flushed the heck out of the fluid (which is always changed religiously) with no improvement. So I continued on the trip warming the bike up well each morning. A couple of days later it was fine again without warm up.
So I tore it down, and was horrified to see how bad it was with only 55K on it. I think I am going to pester Ma Kaw on this one with my GPP. My best guess is they are using an aluminum housing on the slave, with a different metal for the piston. Add in some water and you get the usual electrolysis with aluminum. I tore it down, cleaned it up with some fine grit sand paper and it seems much better now. I think this needs to be on all of our to do lists every year or so. It was an easy job, no parts needed except new brake fluid. Login or Register to Remove Ads |
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05-31-2017, 06:26 PM | #2 |
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Join Date: May 2016
Posts: 119
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Which vulcan?
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05-31-2017, 07:19 PM | #3 |
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Join Date: Dec 2009
Location: Cleveland Ohio
Posts: 714
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05-31-2017, 08:06 PM | #4 |
Member
Join Date: May 2016
Posts: 119
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Yup, 12 Nomad, looked like the pic. I noticed some clutch slip late winter, notice half gone lever engagement. 27k miles, Thot maybe half life on ckutch. This sounds more like the problem. Thx.
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05-31-2017, 10:01 PM | #5 |
Join Date: May 2015
Location: Marietta, GA
Posts: 838
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Is that the first time you have had the clutch (or brake fluid, for that matter) changed? 4 year/55K miles is too long, IMHO. Should be changed every 2 years or 30K miles, whichever comes first.
Glad it was an easy fix. It could have been worse if there had been more moisture and degradation of the fluid. Login or Register to Remove Ads |
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06-01-2017, 07:12 AM | #6 |
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Join Date: Jan 2009
Location: Listowel, Ontario
Posts: 642
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I've had the same issue, slave cylinder was replaced under warranty the first time which clued me into checking it regularly. I replace and flush the fluid at least 4 times a year and and once a year I disassemble the cylinder, clean everything and replace the seal. Cheap insurance and no failures since.
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06-01-2017, 08:30 AM | #7 | ||
Advanced Member
Join Date: Dec 2009
Location: Cleveland Ohio
Posts: 714
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Quote:
The mess you see is totally on the out side, it's not from moisture inside. Quote:
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06-01-2017, 10:43 AM | #8 |
Sr. Member
Join Date: Jul 2012
Location: Clarksville, TN
Posts: 1,434
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I had the "sticking clutch" attack me when leaving work from Louisville one afternoon. At the time, I was living in an RV and home (as well as my garage and tools) was nearly four hours away, I was in a near panic. I limped to the RV, and this forum saved my bacon! Commonly caused by a steady but slow buildup of dust-n-crud, opening the wet side was not even required. A real good cleaning with a stiff brush and WD-40 cleaned everything out and it has worked with no issues for an extra two years. And yes, the fluid has been changed, but if you don't know to clean that cup, the problem can still bite you.
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Jerry "Old Bear" Barker Clarksville, TN Americas Guardians PS MC President, Tennessee 16-A VBA #02203 "Blaze" 2017 Vaquero "Black Magic" 2011 Vaquero, 69k miles, handed down to my son for hopefully many more miles! |
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06-02-2017, 12:48 PM | #9 | ||
Join Date: May 2015
Location: Marietta, GA
Posts: 838
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