Re: throwout bearing - Saab Vintage Models Bulletin Board - Saabnet.com
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Re: throwout bearing
Posted by spiv (more from spiv) on Sat, 26 Jun 2004 16:25:27
In Reply to: throwout bearing, roger w, Fri, 25 Jun 2004 19:32:54
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The throwout bearing doesn't move back and forth except in conjunction with the release fork. I guess I can imagine the release fork moving forward far enough to stick on something, but it doesn't seem likely. (The spring that pulls it back is REALLY strong!) What DOES seem likely is that when Bigfoot put his paw on the clutch pedal, he forced the either the slave cylinder or master cylinder piston so far forward in the bore that it hung up and won't return.
Easy way to get a better idea of what's goin' on in there: Unbolt the slave cylinder from the transaxle (easy; one bolt) and remove it along with its rubber boot, leaving the hydraulic line connected. Now you can see the business end of the release fork. If your guess was right and the fork was stuck in the forward position, it will still be in its forward position; if you're really lucky, you might be able to yank on it and pop it loose so it comes back. (Even if that works, it'll just get stuck again, you know...)
If MY guess was right, the release fork will return to its normal position when you relieve pressure on it by removing the slave cylinder. The pushrod from the slave cylinder will still be sticking rigidly out. If that's the case, you need to figure out whether it's the slave or master that's locked. You might try releasing the hydraulic pressure on the slave cylinder by opening its bleed valve (to avoid a mess, put a piece of tubing over the valve first and run the tubing into a jar of brake fluid) and see if you can force the slave cylinder piston back. If you can't, it's the slave that's locked up; if you can, it's the master.
posted by 68.13.13...
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