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[QUOTE="mop, post: 1235337, member: 40662"]
Russ:
     I'm not sure I understood your post......If oil at the bottom of the fork, in the oil lock case was emulsified (air and oil mixed), then it could be forced into the cartridge when the fork bottomed, but that is not really likely.  The pressure in the cartridge is usually higher than the pressure in the outer chamber because of the volume.  SOmetimes when disassembled, there is a vaccuum inside the cartridge, and the shaft is sucked in.  THis is usually caused by the inner floating piston seal failure.  If a large amount of oil leaks past this seal into the pressure spring chamber, sometimes the plastic floating piston will shatter from too much inside pressure.  An easy fix to prevent this from ever happening is to drill a hole in the middle of the floating piston so that the inner and outer chambers will be equal. KYB did not do this stock because it is a SHOWA patent to have common pressure in both chambers.  This mod will prevent the floating piston from shattering, but it will not prevent the inner floating piston seal from leaking....I have no idea why this happens....
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