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Re: Removing Brake Disks
Posted by Larry West (more from Larry West) on Thu, 13 Apr 2000 10:57:07
In Reply to: , Kok Chen, Sat, 17 Dec 1988 12:00:00 

For a 1981, there is no  presswork involved. You remove the two 
screws, remove the pads & caliper, and remove the disc.

To get the screws loose, use one of those hammer-blow torque things. 
You can probably pick one up at a local auto parts for under $20. It 
usually has screwdriver bits. Use the right size bit (phillips is 
close enough. You won't be reusing these, anyway - oh get new ones 
from Saab), press it in hard with the device, then hammer the end of 
the device. Usually, they loosen in about three to 5 raps, and are 
hand tight.

When replacing, use never-sieze on the threads, under the hat of the 
rotor (esp. around the hub center hole), and on the taper of the 
little screws. Don't worry about these too much. Mostly they just 
locate the disc. The lug nuts & wheel hold the rotor on...

If the hammer torque thing doesn't work, you'll have to drill it out, 
then ez-out the remainder of the screw.

Oh - the new screws you get from Saab will be Torx head.

>How are the rear disks removed?  I didnt see any posidrive screws....so I
>assume they are like most 'normal' cars.....(i.e. bearing cup on a threaded
>shaft, held by lock nut (& cotter pin type arrangement?).

Exact same deal as the front. There is a hub & bearings in there, but 
you don't need to take that apart to get the rotor off.

-- 
Larry West
NJ Saab Owner's Club

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