--- In dmcnews@xxxxxxxxxxxxxxx, "Joshua Weader" <weader@xxxx> wrote: <SNIP> > 2. Someone mentioned a while ago that bleeding an existing system can damage > the internal seals in the slave cylinder by forcing internal corrosion through > the seals. Is this true, and if it is, how can anyone ever bleed their system? <SNIP> This deals with contaminated hydraulic fluid. I.e. if you've got original fluid in the system, or it has become contaminated by water, dirt, etc. Once you flush the old gunk out, and replace it with fresh, it will destroy the OLD, ORIGINAL rubber seals in the system. I experienced this first hand with my car. The plastic clutch line was replaced, but the master and slave cylinders were left alone. The MC reservoir developed a BIG ASS LEAK soon after (granted it was already resleeved and "booger welded"), as my stained carpet can attest to. At 26K miles, the cluch was torn up. Replaced clutch, and the new one was torn up after about 2,500 miles. I then replaced the Master and Slave with the new clutch, and my clutch has been tight as a drum ever since, with nice, smooth shifting, even after almost 30,000 miles have been added to it. My philosophy, based on my personal experience, is when waking up derelict car* for road use again, you're gonna need to literally bite the bullet, and replace ALL of your hydraulic systems ASAP! Brake hydraulics are a bit different. Since they are not a intensely used, they will last a bit longer. But will eventually fail on you none the less. Once you've got everything brand new installed, just flush the system every 2 years per the manual, and you'll have a reliable system that you can forget worring about. I definetly would not consider this a high worry item once you've done the initial work. And believe me, it's not all that bad. -Robert vin 6585 "X" *From what I have seen, there is a HUGH difference between a dormant, and a derelict car. And neither have a thing to do with cosmetics. Dormant is where someone puts the car away for the winder, and with minimal work, it becomes just as road worthy as the last time it was parked. Derilect is a car that time forgot. Weather it was in "investment" that someone bought and subsequently parked, a car that they lost interest in, or even where someone died, and their widow just let the car sit next to the sprinklers for 12 or so years and till this day I still can't get the damn water stains off my driver's side mirror. Dormant cars are already on their factory reccomended maintenance schedules, and should need only consumable parts. Derilect cars are quite driveable, but will have considerably more downtime, as their unmaintained components will wear out more rapidly, as all those missed maintenance sessions will catch up with a vengance. 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/