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Hey I am installing a new clutch on my TM728 mugen Aluminium with 1.1 MM springs, I install the shoes pointing the way they should but the springs dont fall into the groove on the nut,If i reverse the direction of the clutch shoes the springs line up prefectly, in the past when I had this problem I just bent the springs, but is there another way to fix this and also what would happen if I ran the engine with the clutch shoes turned the wrong way ?
Posts: 89 | From: jamaica | Registered: Sep 2004
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hmm, with the tm728 that may not be a good idea, is there any chance of the reverse shoes causing the motor to run hot ?
Posts: 89 | From: jamaica | Registered: Sep 2004
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posted
What make and model of clutch nut and flywheel are you using? what model is it in? if you have combined different parts it might make it hard for the springs to line up properly due to different dimentions between the clutch nut and the flywheel.
I have found that the stock MGT clutch nut has a wide range to where you can have the spring setting in the groove. The spring retaining groove is wide, so this allows you to move the spring end up and down the clutch nut to achieve proper fit on the shoes.
Posts: 99 | Registered: May 2004
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mydixie - I'm using the stock savage flywheel and nut, will the MGT clutch nut work with the savvy flywheel ?
Posts: 89 | From: jamaica | Registered: Sep 2004
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To be honest reecek,,I havent tried it with the savvy flywheel. But I dont see why it wouldn't, or be worth a try at least. Clutch shoes, flywheel nuts, springs, flywheels, are sometimes a hit and miss situation when you combine different manufacturers. I stumbled upon the MGT nut and it worked for me. I used it on a Envy racing flywheel and it worked great.
The Envy flywheel seemes to have the clutch shoe pins set in close to the centerline of the flywheel. The stock savvy flywheel, at first glance, has these pins set further out from the centerline,,not much but just a little bit. So the MGT nut would probably work great.
Posts: 99 | Registered: May 2004
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hmmm, sounds like its worth a shot I'll talk to my local hobby store and see if i can get my hands on one. Thanks mydixie
Posts: 89 | From: jamaica | Registered: Sep 2004
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i melted set of mugen aluminum shoes in under 1 tank with 1.0 springs on my truggy... why i asked what you had them in.. i went to composites with .9 springs and not had a issue since..
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crsmp5 - would it have been worth the trouble to try the aluminum with lighter springs ?
Posts: 89 | From: jamaica | Registered: Sep 2004
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My clutches were only lasting one 5 minute heat race! I used to scuff off the crap that developes on the clutch surface when using aluminum shoes, but since installing a new clutch bell, and leaving the surface alone, the Mugen aluminum shoes that only lasted a race or two are now lasting forever.
Posts: 994 | From: santa rosa CA | Registered: Apr 2004
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I have a cluth eating 28 in my truggy. Aluminum shoes would maybe last a heat or two, maybe 10 to 15 minutes top, then they were melted so bad I couldn't even get the springs back off the shoes! Fiber shoes would melt and deform in one run, and bearings were turning the prettiest shades of blue and purple! I've observed these things: the inside surface of the clutch bell must be virgin, unscuffed, or scratched up with sandpaper, and the black carbonized deposits on the shoes and inside of the bell should NOT be removed. The contact surface of the shoes should also not be cleaned or scuffed. The black stuff turns molten after a couple actuations, and if you scuff up the inside of the clutch bell, it'll cause the shoes to wear Super fast. All I do is 45 the edges of the shoes to reduce mushrooming. Since running a virgin clutch bell, and good bearings, my clutches have been trouble free. Make sure the engine is squarely mounted, and also inspect the inside of the flywheel pins! I just ran a heat, and the springs were all broken! after inspection, I discovered the flywheel pins that the shoes slide over were severely worn!
Posts: 994 | From: santa rosa CA | Registered: Apr 2004
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thats a compelling point I think I may give that a shot myself
