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#Post#: 2645--------------------------------------------------
Clutch Plate and Spring Dimensions
By: patentgeek Date: June 25, 2019, 3:08 pm
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Does anyone have in-spec vs. out-of-spec dimensions for the
clutch plates and clutch springs?
My clutch seems to be slipping a bit, especially on really hot
days. I'd like to measure the plates and springs to confirm
wear before ordering new parts. I'm running wet-clutch
compatible engine oil.
#Post#: 2646--------------------------------------------------
Re: Clutch Plate and Spring Dimensions
By: banquo Date: June 26, 2019, 12:18 pm
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From the manual (downloadable from the links section) the
springs should be 37.4 - 37.5mm long, and should compress to
27mm under a load of 16 kg +/- 3%. Wire diameter should be 2.2mm
and coil OD 13mm.
I don't see any spec on the plates, but should be obvious if the
friction material is badly worn?
#Post#: 2647--------------------------------------------------
Re: Clutch Plate and Spring Dimensions
By: patentgeek Date: June 26, 2019, 2:59 pm
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Thanks! Missed the spring dimensions in the manual.
Yes, badly worn clutch plates should be obvious. But if mine
aren't badly worn, I was hoping to get an idea as to how much
life is left.
I have a new set of clutch springs in my spares, so if the
originals are < 37.4mm, I'll replace and see what happens.
#Post#: 2648--------------------------------------------------
Re: Clutch Plate and Spring Dimensions
By: banquo Date: June 26, 2019, 4:55 pm
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Yes, Guzzi manuals are often very unhelpful....
Some torque settings would come in handy too
#Post#: 2649--------------------------------------------------
Re: Clutch Plate and Spring Dimensions
By: patentgeek Date: June 28, 2019, 11:42 am
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Redsingle/Leo has a new clutch assembly and kindly measured
plate thickness as 2.6mm.
He also suggested that oftentimes clutch slippage isn't due to
wear, but to contamination (e.g.., sludge, etc.).
So in summary:
*spring free length: 37.4 - 37.5mm
*spring compression under load: 27mm under 16kg (+/- 3%)
*clutch plate thickness: 2.6mm
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