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Old 04-08-13, 01:54 AM   #1
ksharp117
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Sora Flight Deck Levers

Hello.

my thumb trigger on my Left Shifting/brake lever started sticking. I dissembled it to regress every thing, and now I'm trying to assemble everything, but things aren't working quite right. I have a feeling I'm putting something in the wrong place. I've been trying to find some schematics or a exploded parts pic, but I'm having no luck. Dose any one know where i could find one anything? I just need to see the correct order of reassembly.

This is the best I've been able to find. I'm hoping to find something for the actual ratcheting system.
http://techdocs.shimano.com/media/te...9830609257.pdf

Thanks everyone!
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Old 04-08-13, 02:07 AM   #2
Kimmo
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Wow, how did you get it apart without the special tool to get the lever off the pivot bracket?

You might find some clues to reassembly in the STI overhaul link in my tag, but bear in mind only the general principles can apply because it's a comprehensively different mechanism.
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Old 04-08-13, 11:56 AM   #3
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There used to be a WONDERFUL "Instructable" on rebuilding the Sora STI shifter but it's been taken down.

At first look though this looks quite through!!!: https://sites.google.com/site/reukpo...o-sora-sti-fix

It's very doable but a real pain...DON'T FORCE ANYTHING when reassembling/testing :-)
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Old 04-08-13, 03:45 PM   #4
ksharp117
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these are both great walk trough's. Thanks guys.
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Old 04-08-13, 05:51 PM   #5
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Looking back at it...the MAJOR PITA was setting the lever return spring. As a matter of fact, getting each spring set was a challenge.

I urge you to take your time and test everything before you attach the change mech to the housing. You can do this with just the cable...which should have been removed completely at the start.

...The "Instructable" was SUBSTANTIALLY more thorough!!! :-(
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Old 04-09-13, 03:36 AM   #6
ksharp117
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Yeah, I'm having a hard time getting the lever return spring set myself. I'm scouring bike shops to see if i can get a Return Spring Installing pin. I feel like this would help a lot, just having trouble trying to locate one
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Old 04-09-13, 12:13 PM   #7
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With the lever body upside down, mounted on the bike or held in a vise (between your knees in a pinch), place the plastic bushes and hook the spring onto the pivot bracket of the lever.

Holding the lever on an angle maybe 30 or so more open than it sits, insert it into place, closing the angle as you push the end of the spring against the lever body. It shouldn't be too difficult if you get the angles right.

Keep the lever in place while you slide a screwdriver or something through the pivot as a placeholder for the pivot pin, which can be a bit of a PITA to insert all the way... swearing helps a bit.
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