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Discussion Topic:
clutch travel
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MICHV8 |
07-14-2018 @ 11:27 AM
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Member
Posts: 462
Joined: Jul 2010
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I’m having a problem with gear grinding (new pressure plate and clutch from Fort Wayne Clutch) when trying to shift my 59AB and 39 Merc trans. I’ve extended the pedal yoke as far as I can while still getting the pins inserted and still can’t get in gear. The rear wheels are off the floor and do not rotate when engine running in neutral so I don’t think it is a flywheel/disk stuck issue. Any debugging ideas? Thanks for the help.
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shogun1940 |
07-14-2018 @ 2:59 PM
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Posts: 464
Joined: Feb 2010
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Withe the car in neutral and running and the wheels jacked up do you hear the the input gear turning the clutter gear and does it stop when you push the clutch in? If you do not hear an different sound then i would say the clutch is not disengaging.
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40cpe |
07-14-2018 @ 3:16 PM
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With the clutch return spring attached, do you have the spec'd 1"-1 1/2" free play? More or less? Did you push the clutch release arm forward with your hand before attaching the clevis?
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MICHV8 |
07-14-2018 @ 3:24 PM
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Joined: Jul 2010
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I can't move the clutch release arm with anything other than the clutch pedal connected to the yoke...I simply can't get any leverage to move it. Does the fact that the wheels are not turning rule out a stuck flywheel/disk? If it does rule out a stuck plate, then I assume the arm travel is the problem? I'll try to listen for a change when I depress the clutch, but it is a little noisy
This message was edited by MICHV8 on 7-14-18 @ 3:31 PM
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woodiewagon46 |
07-14-2018 @ 3:40 PM
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Senior
Posts: 704
Joined: Nov 2012
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Could you have put the clutch disk in backwards?
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40cpe |
07-14-2018 @ 4:29 PM
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Posts: 477
Joined: Jan 2010
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The wheels not moving in neutral is normal. The transmission is the disconnect in this case instead of the clutch. How much free play do you have in the clutch pedal?
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MICHV8 |
07-15-2018 @ 7:14 AM
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Posts: 462
Joined: Jul 2010
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I'll measure the free play it today (I have the yoke threaded out as far as I can and still get the pins in). Just so I understand...the clutch plate could still be stuck to the flywheel even though the wheels are not turning with the trans in neutral?
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40cpe |
07-15-2018 @ 11:54 AM
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The transmission is between the clutch and the rear wheels. If the transmission is in neutral the clutch has no effect on turning the driveshaft. It can be stuck, engaged, or released and the engine can't drive the rear wheels. As allenwoodie said, the pressure plate could be in backward. There is a hub on one side that has to face the pressure plate, otherwise it will drag the flywheel.
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MICHV8 |
07-15-2018 @ 1:12 PM
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Posts: 462
Joined: Jul 2010
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I didn't install the clutch disk...is there a way to tell looking through the access plate? I had the plate off with the engine running in neutral and could see the disk spinning along with the pressure plate. When I pushed the clutch in, I could see the clutch disk slow down enough to see the internal disk springs, but it did not slow down completely. Would increasing the pedal throw cause the disk to stop completely? If I could get enough leverage on the clutch arm, I could thread the yoke out farther, but I can't move the clutch arm with my hand...too much resistance.
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sarahcecelia |
07-15-2018 @ 1:49 PM
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Senior
Posts: 1193
Joined: Mar 2013
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I was a top mechanic for vw, and then Buick. The customer complaint was the car was grinding when it was shifted into 1st gear, and 1st gear was sychronized in them after 1960,and the customer had a car with a fully synchronized trans. That was 100 % of the time, a dry mainshaft! You have to get to the main shaft and just put a "dab" of grease on it. On the VW it was easy. With the car on the lift, about 2 feet or so off the floor, I just pulled the engine back about a half inch, with the four mounting bolt nuts off, then with the car on the lift; I put a "dab" of grease on a long screw driver,and turned the left rear wheel with my foot as I touched the grease on to the shaft. Push the engine forward , install the four nuts on the mount bolts, tighten them up and done. This will give you an idea of what to do.You see, when that shaft is dry, the clutch disc can't slide back away from the flywheel. When that happens it keeps the shaft turning, and then the gears are tuning, so they grind.
Regards, Steve Lee
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