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Post by Fox on Feb 7, 2012 3:17:41 GMT -5
I have 10 or so used 50 and 150cc clutches out in the shop that need to be re-greased so today I went out and bought a 3/4 inch drive 1 1/2 inch Craftsman socket and a 1/2 in. drive to 3/4 in. drive adapter so I can spin the socket with my impact to take apart clutches. Total cost was $27.84 That was a lot more than I expected to spend but the HF by my house doesn't carry a single socket bigger than 1 1/4 unless you want to buy a whole set so I had to go to Sears  Some clutches have an 1 1/2 nut and some have an 1 5/8 inch nut (50 and 150cc) so I'm gonna have to buy an 1 5/8 socket too eventually. It's kind of a lot of money but it'll pay off in labor charges. I figure I can charge $25 -$30 for a "Clutch Rebuild" I should have bought one years ago instead of buying replacement clutches. You live, you learn... Here's the socket and adapter for the 1/2 in. impact:  |
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Post by bigcheesestick on Feb 7, 2012 4:45:41 GMT -5
It'd actually be a 38mm nut on 150's, and even a few 50's. Some 50's have a smaller one, either 36 or 37mm, I forget. You can get impact sockets that size really cheap because their common for wheel bearings on cars. Harbor Freight carries them in either 1/2", or 3/4" drive, alone, or in sets. I found a deep well set from 29mm to 37mm a while back there on sale. Used 'em on scoots and cars for two years now, actually seem to be pretty good quality! From an old thread.  From an old thread.  |
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Post by Fox on Feb 7, 2012 5:16:09 GMT -5
The smaller of the two nut sizes is 38mm. That = 1 1/2 inches. The larger nuts are just a smidge under 1 5/8. Trust me! That goes for 50 and 150cc. They vary regardless of engine displacement. The point is that lots of metric nut sizes = standard socket sizes. 13mm=1/2 in. etc... Type in 38mm here: www.worldwidemetric.com/measurements.html |
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Post by 190mech on Feb 7, 2012 5:28:01 GMT -5
Autozone carries large metric "axle nut" sockets..
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Post by bigcheesestick on Feb 7, 2012 5:32:10 GMT -5
Why would Chinese use "US standard" size nuts / bolts though ? It's all good I guess, before I took any of ours apart to measure I went to a local shop and asked the mechanic there what he uses and he shows me a 40mm and told me "agh, it fits loose sometimes, and tight other times. But it always works."! And people pay him to work on their stuff!?!  I measured all three of our 150's (each from a different manufacture) and they were all exactly 38mm. |
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Post by Fox on Feb 7, 2012 5:32:20 GMT -5
They don't use standard sizes. It's just that when you measure the sizes individually some of them equal standard sizes as you go down the line. 1/2 in = 13mm for example. It's not intentional. It's just math.
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Post by bigcheesestick on Feb 7, 2012 5:37:26 GMT -5
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Post by Fox on Feb 7, 2012 5:42:49 GMT -5
I'd buy one and try it if it was $10 shipped but $37.99 is too much for something that may or may not work. I prefer to buy stuff in person where I can touch it and measure it first.
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Post by 2strokd on Feb 7, 2012 10:01:01 GMT -5
Im old school slow... Lol, spend all my money on parts and still use my bench-vice as a socket. :stars: Use my chain-wrench to spin the pulley after i tighten it in the vice  Learned that trick from Brent lonnng ago. The bench-vice for a socket that is  :cheers: |
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Post by 90GTVert on Feb 7, 2012 13:00:44 GMT -5
I still like the bench vise trick, but I picked up a 38mm 1/2" drive socket for my impact a couple of years ago on eBay and it sure is a lot faster. It was somewhere around $20 IIRC. 38mm has worked for me so far on minarellis and GY6 50-150s. My time on the 4Ts is much more limited though, and I don't doubt they would use different sizes. Chinese scoots are crazy.
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Post by Fox on Feb 7, 2012 13:33:21 GMT -5
I also found that the clutch parts themselves aren't all interchangeable. The center hole in the "pad plate" varies in size.
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Post by teddy554 on Feb 7, 2012 15:28:37 GMT -5
Autozone sell 38mm or1 1/2 for 19.99 cant bet price plus they have 37 38 40 41 fo 19.99
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Post by lshigham on Feb 7, 2012 17:23:21 GMT -5
Im old school slow... Lol, spend all my money on parts and still use my bench-vice as a socket.  Use my chain-wrench to spin the pulley after i tighten it in the vice Learned that trick from Brent lonnng ago. The bench-vice for a socket that is  I've been doing that for years, huge chain wrench and shutting it in the vice works great. I'm too tight to buy a proper socket  |
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vvtr
Scoot Enthusiast
Posts: 243
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Post by vvtr on Feb 7, 2012 17:48:40 GMT -5
i just use a filter wrench on the bell & adjustable spanner on the nut.
hasn't failed yet lol!
for getting the 17mm nut off the variator & clutch i cut the end off a 3/8 drive bar and it fits nice in the chuck of my cordless hammerdrill.
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Post by stepthrutuner on Feb 7, 2012 18:16:09 GMT -5
I finally broke down and bought the large socket (1/2" drive) for my Derbi's clutch nut. My great discovery, however, was using an old Pontiac G6 frt. brake disc left over from changing them out on my daughter-in-law's car. I sit on a low stool, place the disc over the clutch with the nut showing through the hub opening, put my feet on the brake disc and do my bidness wif my 'lectric bump wrench and big socket and remind myself what a freakin' genius I really is. EDIT: Works great in aiding compressing the spring on reassembly too. :rockon: |
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:cheers: 
