Date: Tue, 19 Jul 2005 09:23:27 +0000 (UTC) From: Craig's Saab C900 Site <c900nospam.apana.org.au> Subject: Re: How tough is it to replace rear calipers on a 1990 C900?
"LC" <goalie22nospamail.com> writes: >Sorry I wasn't more specific. My sister in law had her front brakes >replaced at the local midas shop. The front brakes and rotors replaced w/o >a hitch, and she was also advised to do the rears as well. When they went >to replace them, they told her that both calipers had seized up. There's no >brake fluid leaking out or anything like that.. so I'm fairly certain that >the brake lines are still good. I've just replaced the rear disks and pads on my car (1983 900S) and once I applied a few simple tricks I'd learnt from others, it wasn't too bad. The first disk took me a few hours but the second one took about an hour. I took the car for a 20 km drive tonight just to make sure things were ok and I got the expected smoking if I braked hard on a long straight where I could build up some speed beforehand. I was really lucky to get a set of brand new Brembo rear disks at a very low price. Remember that these are solid disks so the process would be a little different with the later C900's (from 1987 up?) with vented disks and handbrakes acting on the rear wheels. It would not hurt to replace the calipers at the same time as fitting new disks/pads, but I've re-used the existing calipers for the job I did on my car. They come up on Ebay regularly and you can buy rebuilt (or sometimes new) calipers from some of the online Saab parts places. New calipers can be pricey but when it comes to brakes using quality parts is a Good Thing! After all it's the brakes which stop the car, and they're far more important than the engine in terms of your safety. > It seems it was this way since she got the car.. as the rear pads were the >originals.(saab original part #'s on them and all). Since they were going >to rape her on parts and labor, she opted to drive the car back home and >park it... and have me take care of it. This is why I asked how tough it >was. She has another car she can drive(the in laws have a few of them) >until she's able to get going again. >Anything special I need to know? Do I need to pressure bleed the brakes? >etc? A pressure bleeder (something like a Gunson Eezibleed which is what I use) makes the job of bleeding a lot easier. Any work which involves interupting the hydraulic circuits make a bleed mandatory, but even if you haven't done any brake work on a car, it's good to do it at least every 2 years. Brake fluid absorbs water so over time it does degrade. Changing the rear disks/pads is the second major brake project I've undertaken - I did a brake master cylinder replacement on my 1985 900i a while back now and found the Eezibleed very simple to use when it came around to bleeding the old (and horribly contaminated!) fluid from the brake lines. The master cylinder replacement is documented at: http://nospam/~c900/brakemaster.html for anyone who hasn't seen it before. Craig. -- Craig's Saab C900 Page --> http://nospam/~c900 Sydney, NSW Australia Craig's Saab C900 Workshop -- For all Saab C900 Enthusiasts world-wide! http://www.nospam.net http://www.nospam c900nospam.apana.org.au Come and explore our site, and check out our web-forums, mailing list, etc.