Date: 25 Sep 2006 05:41:34 -0700
From: "saabyurk" <tednospamrkon.com>
Subject: Re: Gear Grinding


echo888xnospamo.com wrote: > My ethereal bliss over my recently purchased 97 9000 is tainted by one > concern: The gears grind when putting it in reverse, and occasionally > in 3rd. Putting it in first before pulling back to reverse eliminates > that problem, but I'm concerned about the infrequent 3rd gear > grinding eventually producing compromised teeth, and metal floating > around in the gearbox. I know the clutch master cylinder was recently > (100 miles ago) replaced without replacing the rubber hoses to and from > the unit. I've read here, and heard elsewhere, that these hoses > sometimes degrade internally and small bits of rubber pushed through > from pressure bleeding can compromise the seals and can also corrupt > the slave cylinder. Does this sound like the kind of thing that could > be affecting the clutch to cause the gear grinding? Clutch is fairly > new and has even pressure all the way down. Any point in changing those > hoses after it's been pressure bled a few times? Also, this car has > had Redline in the transmission for the last 1000 miles. Would changing > to regular oil possibly help the grinding, since it's thicker? For what it's worth, I'll throw in another two possibilities (probably not the source of your problem though). Many years ago I had very similar symptoms, on two different cars. On one, turned out that the pressure plate diaphragm spring had distorted, and the clutch, therefore, wouldn't fully disengage. On another car, stored for a long time, the splines supporting the clutch disk rusted so the disk didn't move fully away from the flywheel when released.

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