ADVrider

ADVrider (http://www.advrider.com/forums/index.php)
-   The Garage (http://www.advrider.com/forums/forumdisplay.php?f=50)
-   -   Is this shift shaft damaged? (http://www.advrider.com/forums/showthread.php?t=853135)

indr 01-04-2013 09:03 AM

Is this shift shaft damaged?
 
http://i.imgur.com/PIK7m.jpg

This is where the shift arms are riveted:
http://i.imgur.com/gt3Fq.jpg

And there is enough play in the riveted area that the "shift mechanism arm" (left) and the "over shift limiter arm" (right) can easily overlap.
http://i.imgur.com/XbrUC.jpg

But they usually don't.
http://i.imgur.com/Ixwx0.jpg

Neither of the arms look deformed or bent in any way. It's just that there is too much play where they are riveted.

Replace it?

ttpete 01-04-2013 11:39 AM

You should be able to peen the rivet over and take up the side play. Lay it on a flat metal surface and use the ball end of a ball pein hammer. Use light strokes and check the play frequently. Stop when it's tight enough that the hooks can't overlap but are still free to move easily.

sailah 01-04-2013 03:42 PM

Quote:

Originally Posted by ttpete (Post 20394810)
You should be able to peen the rivet over and take up the side play. Lay it on a flat metal surface and use the ball end of a ball pein hammer. Use light strokes and check the play frequently. Stop when it's tight enough that the hooks can't overlap but are still free to move easily.

What he said

indr 01-04-2013 03:51 PM

Will do.

concours 01-04-2013 05:36 PM

May be fine, does the shift drum have nice disc shaped sides that serve to keep these arms in place? That loose fit may be THE DESIGN to assure no binding. How did we come to have this apart? Symptoms? Just noticed it on the way by? SpringS OK?

bwringer 01-05-2013 09:55 AM

It's supposed to be that way. There are other pieces that keep the arms where they're supposed to be when in use.

Please don't go banging on it with a hammer.



The shifty bits in a Suzuki GS500 (and many other bikes) look a lot like that, and basically there's a plate over the end of the shift drum that keeps the "hooks" at the end in the right place. The side-to-side play is of no consequence, and some play is needed to ensure the assembly moves freely under load.


Also, you have omitted some VERY important information, like what sort of machine you're working on and whether you are having any other problems that would lead you to suspect this part.

indr 01-05-2013 11:38 AM

The bike is a 2010 Ex250. I'm assuming this could be damage because I have laid the bike down towards the shifter side more than once. Damage that could have transferred to what I see now. Also, I have tried to split the crankcase without taking out the clutch basket (stupid me) that might have put undue stress on the parts mentioned.

You and concours are right in that there IS a plate/disc that keeps these apart and in normal operation, there is 0.00001% chance of these two coming undone from their places and hooking up like in 3rd picture. I am just worried about the loosness.

All in all, I see no damage to the riveted area that would lead me to believe that they could have gotten that way because my mistake while trying to split the case.

concours 01-05-2013 02:48 PM

Quote:

Originally Posted by indr (Post 20403263)
The bike is a 2010 Ex250. I'm assuming this could be damage because I have laid the bike down towards the shifter side more than once. Damage that could have transferred to what I see now. Also, I have tried to split the crankcase without taking out the clutch basket (stupid me) that might have put undue stress on the parts mentioned.

You and concours are right in that there IS a plate/disc that keeps these apart and in normal operation, there is 0.00001% chance of these two coming undone from their places and hooking up like in 3rd picture. I am just worried about the loosness.

All in all, I see no damage to the riveted area that would lead me to believe that they could have gotten that way because my mistake while trying to split the case.

Put down the tools... back away slowly..... :1drink:lol3 Get a FACTORY shop manual, and begin reading.

Beezer 01-05-2013 02:59 PM

pretty sure the 2 arms are on opposite sides of the shifter drum... they can never touch when assembled. they also prolly ride in a track to keep them in alignment & have springs so they follow the shifter cam on the drum

indr 01-05-2013 03:03 PM

Quote:

Originally Posted by concours (Post 20404563)
Put down the tools... back away slowly..... :1drink:lol3 Get a FACTORY shop manual, and begin reading.

It doesn't answer my question.

http://i.imgur.com/XVvWq.png

concours 01-05-2013 07:04 PM

Quote:

Originally Posted by indr (Post 20404682)
It doesn't answer my question.

http://i.imgur.com/XVvWq.png


No, but it would have guided you through dismantling the cases properly. Does the bike shift poorly?

indr 01-05-2013 07:10 PM

It shifted perfectly about a year ago before I started dismantling it slowly. The reason for spliting the case is totally different. I didn't look through the manual before trying to do pry it open. I'll stick with the way it is and replace the arm spring. Should be okay.


Times are GMT -7.   It's 09:46 PM.

Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014