Date: Thu, 24 Jul 2003 11:41:22 +0000 (UTC) From: "Saabtech" <saabtechnopsamnnect.com> Subject: Re: Hydraulics..Help needed fast
There is an issue with the clutch hydraulic system on 9000`s where the rubber feed hose from the fluid reservoir to the master cylinder and the rubber part of the pipe connecting the master cylinder to the slave cylinder isperished internally by the presence of the brake fluid, these tiny marbles of rubber get onto the seals and can cause the seals to let by. I have seen quite a few new slave and master cyliders fail because of this within weeks of installation. On a few occasions I have changed both hoses and with a good bleed through it has cured the problem. It is a wise precaution to renew the hoses when fitting new cylinders, ever wondered why the fluid is black when you start to bleed the system? HTH Tom, Saabtech. "Malcolm William Mason" <arpicnopsammail.com> wrote in message news:0NKTa.209$Wf4.126829nopsam.abs.net... > Saab is '92 9000S sedan > About a year ago I found myself out of town (200 miles from home) my clutch > pedal flat on the floor.we were on holiday. Not a Saab dealer in site. I had > the car towed to the nearest licensed mechanic who told me that either the > clutch master cylinder or its slave cylinder had faied and that if it were > the slave being inside the cluch housing that it was much more labor > intensive and therefore much, much more expensive. > > I rented a car, got home and a day and a half later was told that yes indeed > it was the slave. > > I authorized the repair and picked up the car three days later and became > $800US poorer. > > He told me that as a matter of course he had replace the plate and the > bearing and machined the fly wheel leading me to believe that i had about > 40k miles in which I would not have to think "clutch. About a year and 9k > miles later, I left on a straigth through trip of about 600 miles. It is all > limited access highway and I cruised non stop except once at 400 miles for > gas to the end of a toll road at about 500 miles out clutching down as I > approached the booths, my clutch pedal was on the floor. Doing some > undescribable contortions I pulled it up and surprisingly continued normally > to the end of my journey. > > Evrything went normally for about a day of "suburban driving. And the, > leaving my hosts house one morning, the clutch was or went to the floor and > no presuasion would re-establish clutching so I had it towed to a repairer > who had done wok for me several years before who could find nothing wrong > but said that my clutch hydraulic fluid was low and he filled it and sent me > on my way. I would say about four oz. (125ml) of fluid leaked overnight onto > the road infront of my hosts. Perhaps an overfill I thought. > > I drove home without further repair or incident..600 miles approx. > > I drove around town a little. One day last week I was down town--much > braking, shifting and accelerating. Shifting became difficult and, very > surprisingly, My brakes begain to lose effect and the "BRAKE FLUID" light > came on. I made it home. I parked in my drive. > > Next day thing seemed back to normal but after a short run the same effects > occurred and I made it home, just. An hour later. The clutch pedal went to > the floor and stayed there. I pulled it up and it went down with my foot and > stayed there. > > My drive is on a slope therefore the gears were under pressure and I could > not shift anything. > > I had the car towed. > > The brakes failing reminded me of an occaision about two moths ago when the > car became difficult to shift and the "BRAKE FLUID" light went on. After > sitting for about a half an hour I re-started and all was normal. > > I have learned that the Saab hydraulic system interconnects or shares fluid > with the clutch. This surprises me. (I am a mechanical engineer) but they > are better designes than I could hope to be. > > My considered opinion is that it is not a cylider or a leak. But I cannot > even conjecture what it must be. > > > Please, please someone with knowledge of the Saab's hydraulics pleasehelp so > that I will not in ignorance permit my repairer to replace the entire > hydraulic system. > > I really need help and need it ASAP. Thanks a whole lot. > > Malcolm > > > > > > > > > > > > > > Reply to: MWM1xxxxxnopsamedu Remove the four "x"s and then use the address > > The "x"s are for the spam scanners > >
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