I too, have seen "bad" new cylinders. Often this is because the cylinder is not properly bench-bled and air is still in the master cylinder. Pull the clutch mater cylinder off and put it in a vise. Hook up a small tube from the outlet to the resovoir and pump the cylinder till the air stops bubbling. If it IS defective you will know immediatly and you don't have to guess if it is anything else. Once you do get it working and bench-bled put it back on the car. To properly bleed the clutch you have to move a lot of fluid through it. Don't stop when you stop seeing air come out. Keep going and you will get more air out and a stiffer, higher pedal. Same procedure for the brakes. Try to use Castrol DOT 4 GTLMA. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "Dave Swingle" <swingle@...> wrote: > > I've seen this - a bad "new" master right out of the box. It means > that the internal check valve isn't check-valving. You may be able to To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/