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Shimano RSX shifter/brake rebuild

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Shimano RSX shifter/brake rebuild

Old 10-06-21, 02:58 PM
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marius.suiram 
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Shimano RSX shifter/brake rebuild

I hope my question is for this forum.
The shifter is coming from a GT Force bike.
It was not working, probably some old grease was inside, so I decided to take it apart and clean it.
The YouTube video was helpful.
I take it apart, clean it and put it together. Everything was fine till the last move.
I need a Shimano tool to keep the springer in the position.
It is for sale on ebay for less than 20$, but coming from Japan in 1 month and a seller with a few stars.
I tried to the LBS and the guy who maybe can do it, is in vacation. I will try at Bike Coop Saturday if I don't get any solution.
I am sure that some of you guys did the parting/ rebuilding of the shifter.
Any solution how to do it without the tool, or anybody has the tool and can measure how long it is?
Actually I did put the parts together two times, but probably the springer being in the wrong position, the brake handle was in the "brake" position.
thanks


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Old 10-06-21, 03:54 PM
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I didn't know a special tool existed, but there is no need for any tools. Just grab the part that contains the lever and shift mechanism, and go up into the shifter body from below. The shifter body will compress the spring as the lever goes in. You just have to hold the whole shebang together and push the pivot pin in.
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Old 10-06-21, 04:35 PM
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I've done a few of these as well, without the tool.
I took a couple of pics of mine, maybe these will help you.


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Old 10-06-21, 05:18 PM
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marius.suiram 
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I took a screnshot.
it is the small tube, near his thumb

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Old 10-06-21, 08:37 PM
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Two common options that is used to hold the spring in place is ball inflation needle (like you would use to inflate a football with a schrader pump). May need to open up the tip a little with an awl.

Or a tension pin or sometimes called a split pin (found in a hardware store's small parts section).

In the pic. Top to bottom: Shimano tool, ball inflator needle, tension pin 3/32" x 3/4", two tension pins stuck together to make handling easier and not lose when dropped. Larger part is 3/16", I think.

Hint, if you get the tension pin, get a couple since they can get thrown and lost quite easily. Still have a couple MIA in my workshop somewhere.
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Old 10-07-21, 06:15 AM
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Originally Posted by KCT1986 View Post

Or a tension pin or sometimes called a split pin (found in a hardware store's small parts section).
That double tension pin tool is great! I think these things are called "roll pins" too
Thanks!
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Old 10-07-21, 04:37 PM
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Well, I did it finally.
I tried yesterday again, but the pivot pin get stuck somewhere... I cannot push it or pull it out. Probably the springer was in a wrong position.
I bought today the tension pin for 1$.
Somehow I pulled out the pivot pin and try again..
Now I can see that the springer is in the right position.
I try to align everything there using a 3mm hex from the opposite side, and than from the springer side I come with the pivot pin and is done.
Thank you for all your advices and for the cheap 1$ tool
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Old 10-07-21, 09:11 PM
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Glad that the tension pin worked. That shifter looks to be in nice condition.

I have a set like that which needs to be cleaned out and sold/donated.
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Old 10-08-21, 11:08 AM
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You guys have far bigger balls than I. If a few T9 flushes don't revive STIs, they go to the co-op bin for someone else to play with.
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Old 10-09-21, 06:02 AM
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Originally Posted by KCT1986 View Post
Two common options that is used to hold the spring in place is ball inflation needle (like you would use to inflate a football with a schrader pump). May need to open up the tip a little with an awl.

Or a tension pin or sometimes called a split pin (found in a hardware store's small parts section).

In the pic. Top to bottom: Shimano tool, ball inflator needle, tension pin 3/32" x 3/4", two tension pins stuck together to make handling easier and not lose when dropped. Larger part is 3/16", I think.
I picked up the 3/32x3/4 tension pins, when I was checking for the larger pin, I found 5/32 to fit tightly, 3/16 a bit loose.
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Old 10-09-21, 07:51 AM
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If this is a tool would anyone have an idea of the name and part number for this?



Thanks
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Old 10-09-21, 08:29 AM
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Originally Posted by eom View Post
If this is a tool would anyone have an idea of the name and part number for this?



Thanks
marius.suiram had one on order, he could probably help.
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Old 10-09-21, 10:33 AM
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Originally Posted by daverup View Post
I picked up the 3/32x3/4 tension pins, when I was checking for the larger pin, I found 5/32 to fit tightly, 3/16 a bit loose.
Thanks for the correction, been a few years since I put a few of these together.
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Old 10-09-21, 12:01 PM
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Originally Posted by eom View Post
If this is a tool would anyone have an idea of the name and part number for this?



Thanks
Shimano shows 2 versions; TL-ST02 (Y-130 03100) for ST-6500 and TL-ST03 (Y-130 03200) for ST-6600 Don't know how/if they are really different. I think that the one pictured is the TL-ST02 since I got it with my 9 speed shifters.

Maybe the TL-ST03 has a larger I.D. since the spring seems to be different for some 10 speed shifters.

Last edited by KCT1986; 10-09-21 at 12:16 PM.
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