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Jul 02, 2015 8:17 am
Jul 02, 2015 8:17 am
Subject: Re: 2ltr clutch
(26.5.2015:) It seems I am the only one at the moment interested in the 2ltr clutch. I received the new springs from the club. They are about 1mm longer uncompressed (the old ones have lost this length). Now the scientific approach: I measured the spring rate of both. I misused a powder cake compression and stability tester for this and got these two curves for the old and new springs. Fitted a curve in Excel. Important are the two rates (not the absolute position of the curves in the diagrams). The old spring has a rate of 17.4 N/mm and the new one 19.9 N/mm. So the old one has lost about 15% of its strength. Putting the new ones plus shims will certainly help.
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(26.5.2015:) It seems I am the only one at the moment interested in the 2ltr clutch. I received the new springs from the club. They are about 1mm longer uncompressed (the old ones have lost this length). Now the scientific approach: I measured the spring rate of both. I misused a powder cake compression and stability tester for this and got these two curves for the old and new springs. Fitted a curve in Excel. Important are the two rates (not the absolute position of the curves in the diagrams). The old spring has a rate of 17.4 N/mm and the new one 19.9 N/mm. So the old one has lost about 15% of its strength. Putting the new ones plus shims will certainly help.
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