Clutch Tool Needed and Question

This Forum is for Puch Motorcycle related topics.
Post Reply
Jackc
Posts: 14
Joined: Mon Mar 30, 2015 9:43 pm

Clutch Tool Needed and Question

Post by Jackc » Tue Jul 28, 2015 2:59 pm

The Clutch on my '55 Allstate 250 was stuck when I got it. It freed up easy enough by starting it in gear.

While the bike runs very well, the clutch slips going up hill or when "getting on it". I am assuming that I need new friction plates but also wonder if it could be a simple adjustment since the bike also "creeps" just a bit while it is running in gear with the clutch pulled in.

I looked in the manual, and as usual it was not very clear on how to adjust the clutch. It looks like I should turn the adjuster screw on the side of the engine a click or two to loosen it ( turning the screw the usual direction to loosen it--is that to the right?).

Now, if I need to replace the clutch discs I need a special type screw driver, big with a notch cut out of the middle. Is the proper tool available somewhere? I tried to find a big enough screw driver with no luck--maybe a small gasket scraper would work, or if I can't find one I may be able to fab one from some mild steel.

I have an extra lower end that I am hoping to take the clutch parts from--seems they fit all years 250. Not sure of the year but it has the voltage regulator there by the points and generator, NOT up in the tool box area like on my '55.

Any advice or help appreciated!

Jack
egr88
Posts: 919
Joined: Sun Apr 17, 2011 8:39 am
Location: Australia

Re: Clutch Tool Needed and Question

Post by egr88 » Tue Jul 28, 2015 5:47 pm

put type F ATF in the trans, the wrong oils get used, there are a million wet clutch oils out there and to be honest I've used a lot of them and teh clutch will still slip (On my souped up yamaha ct 175) I put ATF in and problem is all but gone.

adjust the clutch springs so when you look at the plate and pull the clutch you see the plate lift evenly off the clutch, you can tighten the springs to give more clamping force, test to see that you can still release the plate by pulling the lever.

you just use a flat blade on one side of the collet. you dont need a special tool. ensure the flat blade is thick so you dont mar the collet

otherwise you can use an angle grinder to cut up the end of a piece of steel flat bar to make a tool.

you want 5-10mm free play at the clutch lever on the bars and 1-2mm free play at the lever at the gearbox. to ensure the clutch isnt engaged. do this by adjusting the cable. (at least this is the specs for the 175 clutch)

if you still have slip after doing all these things

remove the clutch assembly, rough up the frictions on a piece of sandpaper on glass to remove the glaze be careful with the slurry as this is asbestos based also do the same to the steels and look at the pattern to ensure they arent warped.

creep is usually warped steels or incorrectly adjusted clutch.

hope this helps.
1954 175 SV - restored
1951 250 TF - patina runner
TL, and SL in parts for future restoration
www.facebook.com/puchpartsaustralia
aermacchiman
Posts: 35
Joined: Wed Feb 10, 2016 3:45 am
Location: Missouri, USA

Re: Clutch Tool Needed and Question

Post by aermacchiman » Thu Mar 17, 2016 6:58 pm

That special split tip screwdriver to turn and adjust the special nuts on the clutch.

When I got into the engine rebuild on my Puch SR 175 from 1965, I discovered those special split collar nuts on the clutch. When I looked at the pictures in the service manual for the tool, and saw what it looked like, I figured it would be impossible to find such a tool. I am happy to report that there is a tool for this, and it is available by order from various sources. The tool is made by Wiha of Germany. The name on the handle of the tool is Wiha SoftFinish. The part number is 305. The size printed on the handle is M6 X 125. You will have to make a modification when you get it. You have to carefully grind down the profile of the tip, otherwise, the two prongs of the tips will not insert into the slots of the special split nuts. A friend of mine told me to buy a diamond coated mandrel burr grinder of either 1/2 inch or 13 mm diameter. I did this. These grinders cut the metal, they do not grind it. He did a great job reducing the thickness of the tips, and works perfectly. I will get some addresses of sources for this tool and post them. The tool is made with a hole in the center so the 6 mm bolt goes up inside the shaft of the driver. When you see the tool, you'll know that this is the one to do the job.
1956 Sears Vespa Cruisaire 788.94491 (VA7T)
1965 Sears Puch SR 175
1962 H D Topper 62AH
1969 H D Aermacchi Rapido MLS
1950's Sears Puch Moped 810.94000
1964 Montgomery Ward Lambretta LD125
2006 Daelim Delfino SH100
1960 H D Topper 60A
aermacchiman
Posts: 35
Joined: Wed Feb 10, 2016 3:45 am
Location: Missouri, USA

Re: Clutch Tool Needed and Question

Post by aermacchiman » Thu Mar 17, 2016 7:21 pm

Hi Everyone,

About that special screwdriver with split tip. Here is an address here in Kansas City that will take you straight to the tool:

http://www.kctoolco.com/SearchResults.asp?Search=30560

I have two more sources for the split tip drivers in my next post.
1956 Sears Vespa Cruisaire 788.94491 (VA7T)
1965 Sears Puch SR 175
1962 H D Topper 62AH
1969 H D Aermacchi Rapido MLS
1950's Sears Puch Moped 810.94000
1964 Montgomery Ward Lambretta LD125
2006 Daelim Delfino SH100
1960 H D Topper 60A
aermacchiman
Posts: 35
Joined: Wed Feb 10, 2016 3:45 am
Location: Missouri, USA

Re: Clutch Tool Needed and Question

Post by aermacchiman » Thu Mar 17, 2016 7:45 pm

Here are two more sources for the special split nut drivers that live on the face of the clutch:

http://www.thunderbirdspares.com/clutch ... -360-p.asp


http://hutchinsoncycle.com/product/clut ... g-adjuste/

I cannot vouch for these tools as I have not bought either of them, but they do look like they will do the job.
1956 Sears Vespa Cruisaire 788.94491 (VA7T)
1965 Sears Puch SR 175
1962 H D Topper 62AH
1969 H D Aermacchi Rapido MLS
1950's Sears Puch Moped 810.94000
1964 Montgomery Ward Lambretta LD125
2006 Daelim Delfino SH100
1960 H D Topper 60A
egr88
Posts: 919
Joined: Sun Apr 17, 2011 8:39 am
Location: Australia

Re: Clutch Tool Needed and Question

Post by egr88 » Fri Mar 18, 2016 10:03 am

great contribution, thanks! :)

I just ground two prongs into a piece of steel flat bar, then made a handle for it.

you can use whatever fits your budget :D mine was reasonably slim!

otherwise before that I just used a fat screwdriver in half of the clutch collet, then lift the basket.
1954 175 SV - restored
1951 250 TF - patina runner
TL, and SL in parts for future restoration
www.facebook.com/puchpartsaustralia
aermacchiman
Posts: 35
Joined: Wed Feb 10, 2016 3:45 am
Location: Missouri, USA

Re: Clutch Tool Needed and Question

Post by aermacchiman » Sat Mar 19, 2016 9:23 pm

One more resource for the split tip screwdriver for adjusting the 6 nuts on the clutch face.

Found this on the internet today.

https://www.toolsforworkingwood.com/sto ... Nut_Driver

You wouldn't believe how long and hard I tried a few months ago to find such a tool, and now I find them in several places.

Cheers.
1956 Sears Vespa Cruisaire 788.94491 (VA7T)
1965 Sears Puch SR 175
1962 H D Topper 62AH
1969 H D Aermacchi Rapido MLS
1950's Sears Puch Moped 810.94000
1964 Montgomery Ward Lambretta LD125
2006 Daelim Delfino SH100
1960 H D Topper 60A
davetheslave
Posts: 124
Joined: Tue Feb 24, 2015 9:48 pm
Location: Daytona Beach FL

Re: Clutch Tool Needed and Question

Post by davetheslave » Mon Mar 21, 2016 1:11 pm

Dont really need the split screwdriver tool if you are patiant. I used regular screwdrivers and tools.
Proskip2
Posts: 3
Joined: Sun Sep 29, 2019 12:52 am

Re: Clutch Tool Needed and Question

Post by Proskip2 » Sun Jul 19, 2020 2:16 pm

I made my clutch tool out of a Harbor Freight heavy duty scraper set. You get 4 for $4.99. Just grind a notch in the center of the medium sized scraper to clear the stud. Works like a charm.
Dr. Frankenstein
Posts: 233
Joined: Thu Nov 30, 2017 6:00 pm
Location: Charlottesville, VA

Re: Clutch Tool Needed and Question

Post by Dr. Frankenstein » Tue Jul 21, 2020 8:25 pm

Ha! That's the same thing I did! Works great, too!

I found a pic:

ImageHomemade Puch 250 clutch tool by Dr. Frankenstein1, on Flickr
Post Reply