Date: Fri, 5 Dec 2003 15:41:00 +0100
From: Simon Putz <>
Subject: 9000 clutch master cylinder

Hi, some days ago my clutch master cylinder fucked up (lucas model 90-) so i had to ride the train to work and after 2 days i got the repair kit for hm. something like 8 euros :) i then removed the old cylinder from the car, funny nuts those trolls must have ..., and dismantled it. the girling ring flied through all the room, but okay i had a new one, so i didnt care much, then i took this whole piston out, wriggled this funky triangle-safety-ring thing down, and took off the first rubber and the o-ring. took off the second rubber too, of course i didnt remember the way they were on. so i wriggled on the one at the end of the piston, and it was there in the wrong way, damn, removed it, flipped and put it on again, i already kinda mangled it while doing that. then i put on the new o-ring and the other rubber which suddenly had a piece missing, damn, and i couldnt get this strange security ring thing on again, it was widened out or something, who cares, so i threw the whole cylinder to the sawed-in-parts motor mounts and ordered a new cylinder for 100 Euros. now i finally got it :) and to my surprise i noticed that there seems to be a spring inside, or it builds up so much pressure that it goes back on its own! well either my old cylinder was REALLY wasted or this one is a newer design or something. the old had the part # 7594039 (really HARD to read) and the new one has 4384079 stamped in they look the same, and im now going to install the new cylinder, priming it with brake fluid, hoping that eases up bleeding a bit. what do you think guys? bye simon

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