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Old 08-21-2010, 03:19 PM   #1
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Default Clutch endplay 0.000 mm is possible.

Some weeks ago I was at a springcompany to get some springs and in my investigation I did see wave springs:

http://www.amatec.nl/webshop/golfringen

I did get some with a 4.92 hole and 6.15 outside (the closest to 5mm they had). I dremeled out the 4.92 hole to 5mm and cold it fit rght under the bearing where you place the shims for setting the endplay.
The spring has a thickness of 0,76mm and a springrange of about 0.4mm

I did lost my bag with a few springs but tonight I did find it and mounted it. The Thrust bearing is always pushed togeather and because the spring the expansion of the clutchbell has enoug space.

So, enplay = 0.00000
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Old 08-21-2010, 08:38 PM   #2
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that is an interesting idea. let us know how it performs.

given the angles involved, i might be suspicious that the the spring rate is nonlinear and might become too stiff after the first 0.1mm travel.

i guess as long as there is no binding when everything is up to max operating temperature, then you have found a convenient solution.
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Old 08-21-2010, 09:36 PM   #3
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i would be interested in hearing more about how this preforms
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Old 08-22-2010, 09:36 AM   #4
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I've had it set up at .2, b4 it start to bind. And set up with end-play shims betwwen the engine bearing and collet.
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Old 08-22-2010, 11:51 AM   #5
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With a normal small amount of endplay I had taken out a 0.3mm shim, I think the total endplay was about 0.5mm. I also discovered some bindings in the bearings but afte polising the schaft and oiled it the bearing were gliding smooth and the wave spring did push the thrustbearing togeather. This spring has not much tension, I was afraid that some tension still would make the car move bit it doesn's.
I did ran it today without any problems and at the end the spring was still working. I think the is the right solution to give the thrustbearing the longest life.
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Old 08-22-2010, 12:19 PM   #6
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so the purpose of zero end play is longer life of thrust bearing..interesting and i think it may help a little (not much though). I think clutch gap has more to do with the pressure the thrust takes.

Btw, are .21 motors harder on thrusts than .12 motors?Because on .12 motors, thrust failure is not common.
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