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I've just given my forks (Revelations - 09 I think - with MC damper) a somewhat overdue service, and after putting them back together the lockout doesn't work properly. Currently they've got a couple an inch or two of travel before they lock, and even when they do lock it's reasonably easy to overcome the lockout.
I've tried the obvious stuff: the floodgate is turned fully clockwise, and there seems to be enough oil. I've measured the oil twice to the amount in the service manual, and then tried adding a bit to make sure that the base of the damper is in the oil.
I've currently got enough oil in the leg that if you insert the damper with the lockout on, it hits the oil just before it reaches the top of the thread, although that's after adding more oil than specified. Is that about right?
I'm pretty sure that it's not oil leaking into the lower leg, as I've still got full travel, and it doesn't seem to be getting any worse. I've tried swapping the lower damper O-ring back to the one it had before the service.
Any other suggestions? I hardly ever use the lock out so it shouldn't really bother me that it's not working properly... but it does.
iirc they are quite funny about the oil levels.
like you, i never used the lockout, so removed all the pointless gubbins last time they got new oil
Bumping my own thread as I never did fix this, and after a ride with some very steep road climbs at the weekend, I'm determined to get it fixed.
I've checked the oil level and at least the bottom 1cm or so of the damper is sitting in oil, which really ought to be enough, so I figure that there has to be something wrong with the damper unit, but I can't see what.
Any guesses?
Have you had the damper out, and played with the lockout? There's should be a port for the oil to go in and out, covered by a plate, which opens and closes the port... Effectively. If that's not happening, then the oil is going to bypass it and not lockout.
Yep - the port at the bottom definitely opens and closes. I'm really struggling to figure out how oil is getting past a closed port, but it must be somehow.