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Suntour barcon conked out

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Suntour barcon conked out

Old 05-01-10, 07:14 PM
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Ol Danl
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Suntour barcon conked out

Well, I tried the search, but to no avail. Was changing cables, bar tape, and brake hoods today, and decided to check out the Suntour (friction) barcons. I think I have read of folks cleaning and re-greasing them on this forum. Anyway, one of them (front) seems to have a torn paper(?) washer in it, and now it won't rachet or hold tension. It appears the friction that holds the racheting outer drum to the held inner drum is provided by paper (?) washers and a snap ring. At least they look like sort of oily paper. Anybody have any experience with fabricating replacements for these paper washers? Or is it time for ebay?
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Old 05-01-10, 07:31 PM
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I've got one lone barcon here, I'd be willing to part with it.

-Kurt
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Old 05-01-10, 08:51 PM
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As long as we're talking about dead barcons. What's the best way to clean up/restore the innards on them? I've got a couple of sets that don't always rachet through their movement.
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Old 05-01-10, 09:01 PM
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Old Danl

I'm not going to say I guarantee this will work, but perhaps if you could make a washer out of Tyvek, it would do the job.
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Old 05-01-10, 09:31 PM
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I rejuvenated my SunTour Barcons by cleaning the gunky grease from the ratchet springs with odorless mineral spirits (paint thinner) and putting a drop of sewing machine oil on them. One of them was lacking friction as you describe, so I made a new washer from plain card stock (a business card should work). You really don't want any oil in this spot - it's the oil that causes failure, IMO. I imagine that my washer won't last as long as the original, so that shifter is on the left side. It has worked fine since last fall.
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Old 05-02-10, 06:39 AM
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Thanks for the replies, folks. I may need to contact Kurt, if the new washer avenue doesn't work. Guess I'll try making a new washer.
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Old 05-02-10, 06:48 AM
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Originally Posted by USAZorro View Post
Old Danl

I'm not going to say I guarantee this will work, but perhaps if you could make a washer out of Tyvek, it would do the job.
I've got a few unused tyvek Fedex envelopes that I was planning to cut into tire boots, glad to know they have other uses as well...
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Old 05-02-10, 04:38 PM
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Originally Posted by Chris_in_Miami View Post
I've got a few unused tyvek Fedex envelopes that I was planning to cut into tire boots, glad to know they have other uses as well...
Careful here. I wasn't stating as a fact - merely a suggestion. It is more durable than paper, and would add some friction, but might not be the correct thickness or stiffness.
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Old 05-02-10, 05:00 PM
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You're right, I should have said "they may have other uses..." Fortunately, all my sets of barcons work. I'm not even certain Tyvek will work as a boot - it's tough stuff, but it tends to be slippery. Fortunately, all my sets of tires are without holes
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