You're better off measuring the the distance between the pressure plate and the drum centre with the clutch fully assembled. That way all of the plates are compressed (including the dished steel ones) and you get a truer picture. Does your pressure plate have holes in it so that you can see the centre with the clutch assembled? If so, measure the depth through one of the holes to the clutch centre, then subtract the thickness of the pressure plate at the hole. Neil Spalding @ Sigma recommended a gap of 1 to 1.5 mm (in other words the clutch centre has to rise up the ramps between 1 and 1.5 mm before it starts to push against the pressure plate and make the clutch slip). |