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[TS150] Clutch/Sprocket tools and technique

PostPosted: Sat Mar 01, 2014 9:05 am
by Agronski
Hi all,

After waiting for the damn awful weather to improve, I'm finally back to work on the TS150 (most of which has gone furry/rusty in the rain :evil:).

I have completely destroyed the clutch-cover machine screws with the impact driver to get them out again - the hex head replacements I want to use _will_ be copper-slipped :evil:

Now trying to get the main drive off so I can get the clutch apart/clean the plates/replace the kickstart quadrant...

Have a piston stop, now need a sprocket puller - no problem, ebay and £10 later...
http://www.ebay.co.uk/itm/MZ-ETZ-125-15 ... 1e84df7d4f

But no-one - not even MZ-b or themzshop.com has the tool to compress the 6 clutch retaining springs:
http://www.miraculis.de/aw/mz/text/ts12 ... ml#11mw154

So tell me, how do any of you TS owners compress these springs, and/or get the clutch plates and basket off? And is there a nack to getting them off/putting them back? Remember this is an old TS - that ETZ service video on youtube isn't any help!
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Re: [TS150] Clutch/Sprocket tools and technique

PostPosted: Sat Mar 01, 2014 4:19 pm
by therealche
I made myself a tool out of a bit of strip steel I had lying about, around 1/8 inch thick and 1/2 inch wide ( wide enough to press down on both sides of the bucket) using my trusty dremel to make a slot to clear the pin. Then lean your bike against the wall, press the tool onto the cup and remove the pin with a pair of needle nose pliers ( or some say a magnet tho I've never tried that). Release the spring pressure and remove the cup, spring etc. Repeat 6 times and hopefully you will end up with 6 pins and 6 cups and not spend a couple of hours scouring the garage floor for a tiny pin ( not that I have done that, oh dear no!)
I have also seen tools made out of flat bladed screwdrivers, suitably modified

Here's a rough sketch of what I made

Image

Re: [TS150] Clutch/Sprocket tools and technique

PostPosted: Sun Mar 02, 2014 12:52 pm
by Guesi
You searched in the wrong shops :)

I have this tool for 9,50 Euro.
Order Nr. is :11MW

Re: [TS150] Clutch/Sprocket tools and technique

PostPosted: Tue Mar 04, 2014 1:37 pm
by Agronski
Seems German MZ suppliers are better stocked than Hungarian or British...when in doubt, go back to the source! Thanks for the heads up, Guesi.

...but I decided to try realche's idea first and make my own. Very sucessful, I got all 6 pins out with only one trying to escape across the floor. Not sure my tool will survive as long as a proper one, but for now it's worked fine.

So now I ask for more advice: these clutch plates are very likely the original ones fitted in Zschopau. They are a very hard material like brake-shoes and don't look anything like the newer replacements. They are all still about 3.5mm thick by my crappy plastic calipers. The original manual suggests no more than 0.2mm wear - but not sure which area to measure, as these plates have a reccessed area in the middle. Given these plates are now nearly 40 years old, perhaps I should change them anyway? If they are that old, will the equally old oil left in the bike have made them brittle/squishy/useless? If they are still okay, should I roughen the surface a little with sandpaper, or leave them as smooth as they are now?

The driven (metal) plates between also seem to have some slight wear on the very outer edge of the plate. No references in any manual about allowable wear on these plates - should I replace them along with the blank plates?
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