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Re: New motor mounts - requires engine pull? Posted by Larry West [Email]  (#1140)  [Profile/Gallery]
(more from Larry West) on Tue, 30 Nov 2010 10:30:23
In Reply to: New motor mounts - requires engine pull?, ChrisMiami  [Profile/Gallery]
, Tue, 30 Nov 2010 09:25:21
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Front and right side are easily done with the motor in the car. The left one, unless you are absolutely, positively, certain, beyond a shadow of a doubt that it is actually bad, save yourself the hours of aggravation, and skinned knuckles, and leave it be. I know that, should I ever need to do another left MM on a C900 with the hydraulic mounts, I'll wait till the motor is out of the car.
BTW - if it was an 8v C900, or very early 16v with the plain rubber motor mounts, all three can be changed easily with the motor in the car.
To swap out the right and front mounts, you just need a socket (17mm or 19mm, usually), ratchet and/or breaker bar, several long extensions, and a floor jack. Loosen the three nuts or bolts you can see from the top of the mount. The center one holds the motor to the mount, the side ones hold the mount to the car. Once loosened, remove the outer two nuts/bolts with the travel limiter (metal bar that keeps the motor from trying to leave the engine bay if the mount totally fails), then remove the center nut. Carefully and slow3ly, jack up the motor. At some point, you should be able to lift the mount off the "cup" (right side, front is just two brackets welded to the frame) it sits in, and slide the mount out, and the center bolt will drop out the middle of the mount. You may need to twist the mount 90 degrees for clearance. Do one, then the other. You might want to leave the bolts/nuts a little loose, and tighten them all up after both mounts are in.
The left mount (pic below) is quite a challenge to replace without removing the motor. You have to work where you can't see, in very tight places, and some things should even be impossible, but somehow I managed to do it, only to get the old mount out, and find nothing wrong with it...
Part of the issue is that the left mount is upside-down relative to the right mount. If you've removed the motor, you know that Saab provided a simple one-bolt solution to raising the motor, but that wasn't easy... If you look at the illustraion, the two bolts 34 can't be removed until the mount is off the block, or the motor is removed from the car. And though this doesn't show it, I'm rather certain at least one bolt for the mount bracket to the block is inside the mount bracket, behind the mount itself.
_______________________________________ Current: 2002 9-5 Aero Kombi Cosmic Blue 2000 9-5 SE sedan, Imola Red 1990 900S Rose Quartz, Auto Past: 1999 9-5 LPT Combi 1999 9-5 LPT sedan 2002 9-5 Arc 1990 900 5-speed 1986 900 turbo Convertible 1991 9000 turbo 1980 99 GLi 1986 900 turbo 1986 900 S 1991 900 turbo 1984 900 turbo 1976 99 GL
, Tue, 30 Nov 2010 09:25:21, Tue, 30 Nov 2010 10:30:23 <-- Viewing This Message
, Tue, 30 Nov 2010 20:01:10, Wed, 1 Dec 2010 13:23:01
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