Re: Anyone know clutch hydraulic operating pressure? - Saab 9000 Bulletin Board - Saabnet.com
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Re: Anyone know clutch hydraulic operating pressure?
Posted by Lars Tomasson (more from Lars Tomasson) on Wed, 19 Oct 2005 21:34:02
In Reply to: Anyone know clutch hydraulic operating pressure?, Urby, Sun, 25 Sep 2005 18:54:27
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If you really want to know, this is actually an easy one....get a scale an see what force it takes to depress the clutch pedal, then measure the clutch pedal lever and multiply the leverage advantage, times the clutch pedal force divided by the master cylinder area (which you can approximate by measuring the diameter and subtracting the ~1/4" for wall thickness).
pedal force (lbs) X Pedal Leverage (unitless) / Piston area (in2) = lbs/in2
if it takes 30lbs to depress the pedal, and if lever advantagfew is 10:1, and the piston is 1"2 then 30 X 10/1 = 300psi
So you can see that the clutch is a low pressure system compared to the brakes.
posted by 66.167.40...
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