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PostPosted: Fri Aug 09, 2013 2:42 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Mon Jun 07, 2010 4:00 pm
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Location: Hunting down the "foxes" of lincolnshire
Have some XC pro left hand thumbies that wont grip, have some spares but wondered if anyone's a guide to take apart the mech once off the base?

I've searched here and google but could well have missed the unmissable guide :oops:

thanks
And


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PostPosted: Fri Aug 09, 2013 2:51 pm 
Retro Guru
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Location: North West
When you say they not grip - in what way ?

WD :D


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PostPosted: Fri Aug 09, 2013 2:51 pm 
retrobike rider
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Location: Yorkshire, England
yes, while I was in the process of making pictures. Somebody posted it up. you need to search harder. try Google...
I would do it it on the mobile


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PostPosted: Fri Aug 09, 2013 3:50 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Location: Hunting down the "foxes" of lincolnshire
FluffyChicken wrote:
yes, while I was in the process of making pictures. Somebody posted it up. you need to search harder. try Google...
I would do it it on the mobile


I did indeed - i'D found lots on shimano but little or nothing on suntour until I found this by reading a shinano thread!!

http://euphras.blogspot.de/2011/10/how- ... index.html

WD - the left hand on has lost any friction grip unless tightened so much that it has to be called a "handshifter" :lol:

cheers
And


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PostPosted: Fri Aug 09, 2013 4:14 pm 
Retro Guru
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Ah, OK, cant help with that sorry - I thought you were refering to them loosing thoer grip on the bars :D

WD :D


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PostPosted: Fri Aug 09, 2013 4:19 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Location: Rushden......ish
Are you sure its the thumbie and not the spring in the front mech?
I had an M739 front mech and XC Pro combination on my Mongoose & the front mech kept shifting on its own.
I found that you can adjust the spring tension on the mech, did this and it worked fine. There is a flat blade slot on the mech pivot which has two positions.You can adjust it on the bike with a stubbie screwdriver.
I read about it in the old MBUK Mountain Bike Maintenance & repair book which i have never binned since i bought it Bitd :)


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PostPosted: Fri Aug 09, 2013 4:26 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Mon Jun 07, 2010 4:00 pm
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Location: Hunting down the "foxes" of lincolnshire
Gruff wrote:
Are you sure its the thumbie and not the spring in the front mech?
I had an M739 front mech and XC Pro combination on my Mongoose & the front mech kept shifting on its own.
I found that you can adjust the spring tension on the mech, did this and it worked fine. There is a flat blade slot on the mech pivot which has two positions.You can adjust it on the bike with a stubbie screwdriver.
I read about it in the old MBUK Mountain Bike Maintenance & repair book which i have never binned since i bought it Bitd :)


Thanks I'll try that - not sure with it being an XC Pro mech too - it worked for a season but now it's granny shifting like you say.
cheers
And


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PostPosted: Fri Aug 09, 2013 5:32 pm 
retrobike rider
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Location: Yorkshire, England
That's the link.
Give it a good clean up either way.
Or could just need a nip up.

The Shimano tension adjustment would have been with your front mechanical instructions or now in the Archive.

Subroutine on the other hand.


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PostPosted: Fri Aug 09, 2013 8:10 pm 
Dirt Disciple

Joined: Thu Oct 15, 2009 12:30 am
Posts: 73
Location: Ocala. Florida
Greetings
Had a set lingering in the shed for years, and recently used them for a new build. Flush them with GT-85 or such, and then occasionally use a drop of wet chain lube at the lever base where it's attached to the mount and they will work a treat.
Regards
Carl in Florida


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