Does anyone have instructions on how to disassemble and rebuild a 4 speed shifter ?
m21 shifter rebuild
#1
Posted 02 March 2018 - 06:02 PM
#2
Posted 02 March 2018 - 09:00 PM
There's not much to them to rebuild. The welds are prone to opening up though if it's had a hard life.
#3
Posted 04 March 2018 - 09:14 AM
Where are the shims fitted?
#4
Posted 04 March 2018 - 10:07 AM
Early shifters had one or two round wave washers and the selector pivot shaft is also different.
#5
Posted 04 March 2018 - 08:43 PM
They are not really "shims" so to speak. They are more like spring/wave/thrust washers as Dave has mentioned. They don't really allow any sideways slack adjustment. Sort of a factory, agricultural, one size fits all, side thrust plate.Where are the shims fitted?
They are also prone to cracking being made out of spring steal.
Here is a pic of some fitted but is doesn't show all of them fitted.
Attached Files
#6
Posted 04 March 2018 - 09:27 PM
Thanks for your help. The rare spares shifter repair kit gsrk1000 has a total of 5 thrust washers. The picture above shows only two of them. It's the other three I can't see in the various pictures on google. Is there an exploded view of the shifter anywhere that shows all the thrust washers?
#7
Posted 04 March 2018 - 09:43 PM
I looked in the parts catalogue today and it only lists it as an assembly.
I'm assuming you haven't looked at yours yet? As I said earlier, there isn't much too them.
If you get stuck, I can take one apart and post pics.
#8
Posted 05 March 2018 - 04:42 AM
Thanks, pictures would explain a lot.
#9
Posted 07 March 2018 - 01:51 PM
I hope these pics help? As you mentioned, that kit has 2 types of washers.
The shifters I have here only have 2 of the bigger washers fitted.
One shifter has 1 of the smaller washers fitted as well to take up overall play I imagine? Dunno for sure?
Dave has mentioned that early shifters have different parts? Maybe the smaller washers suit earlier shifters?
I have tried to show things to look for including broken washers, broken shifter, wear etc.
Attached Files
#10
Posted 07 March 2018 - 03:02 PM
Nice pics. Thank you.
#11
Posted 29 March 2018 - 04:34 PM
Is there a trick to fitting the indent spring when reassembling the shifter?
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