 Transmission replacement, Clutch doesn't disengage? |
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| jd66921 |
 Apr 26 2007, 01:39 PM
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#1
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Member  Group: Members Posts: 316 Joined: 9-January 06 From: Texas Member No.: 5,394  |
Hi,
I seem to have the strangest problems. I set up my new engine, and was putting the transmission back on. I had already put the clutch in. Everything was fine. Then, I slid the transmission back on, and the clutch release fork just swung freely!! WTF?? The clutch plate is fine, and installed correctly. It only goes in one way. Both pressure plates I have look identical. The throwout bearing looks right, and I don't think any parts are missing. I think I got the transmission on far enough. My measurements say it should have worked! Am I missing something?? Sorry for the stupid questions!! Thanks, Jeff |
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Replies(1 - 7)
| orange914 |
Apr 26 2007, 01:55 PM
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#2
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http://5starmediaworks.com/index.html Group: Members Posts: 3,371 Joined: 26-March 05 From: Ceres, California Member No.: 3,818 Region Association: Northern California |
did you exchange the flywheel with a new or turned "other"? if its from a bus you've got differences. how about clutch fork pivot mount maybe something related?
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| shaggy |
Apr 26 2007, 02:12 PM
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#3
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mechanic/welder/fabricator Group: Members Posts: 702 Joined: 26-September 05 From: Gilbert, AZ Member No.: 4,869 Region Association: None |
QUOTE(jd66921 @ Apr 26 2007, 12:39 PM)  Hi, I seem to have the strangest problems. I set up my new engine, and was putting the transmission back on. I had already put the clutch in. Everything was fine. Then, I slid the transmission back on, and the clutch release fork just swung freely!! WTF?? The clutch plate is fine, and installed correctly. It only goes in one way. Both pressure plates I have look identical. The throwout bearing looks right, and I don't think any parts are missing. I think I got the transmission on far enough. My measurements say it should have worked! Am I missing something?? Sorry for the stupid questions!! Thanks, Jeff did you get it on far enough to bolt it up? if not the TO bearing could be just sliding on the main shaft. |
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| URY914 |
Apr 26 2007, 02:28 PM
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#4
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I built the lightest 914 in the history of mankind. Group: Members Posts: 120,968 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
Is the engine/tranny back in the car and the clutch cable hooked up?
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| r_towle |
Apr 26 2007, 03:13 PM
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#5
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Custom Member Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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I would venture to guess two things, provided the tranny is now bolted back up to the motor..therefore you have it as close as it can get.
You forgot to put the pivot ball back in the tranny that the clutch fork pivots on...or the fork is not currently on it. Or The throw out bearing is possibly on backwards. Rich |
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| computers4kids |
Apr 26 2007, 07:10 PM
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#6
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Love these little cars! Group: Members Posts: 2,443 Joined: 11-June 05 From: Port Townsend, WA Member No.: 4,253 Region Association: None |
QUOTE(jd66921 @ Apr 26 2007, 12:39 PM) Hi, I seem to have the strangest problems. I set up my new engine, and was putting the transmission back on. I had already put the clutch in. Everything was fine. Then, I slid the transmission back on, and the clutch release fork just swung freely!! WTF?? The clutch plate is fine, and installed correctly. It only goes in one way. Both pressure plates I have look identical. The throwout bearing looks right, and I don't think any parts are missing. I think I got the transmission on far enough. My measurements say it should have worked! Am I missing something?? Sorry for the stupid questions!! Thanks, Jeff Jeff, the flywheel on your new motor may have been turned enough to throw the spacing off just enough...if you look on the bird board under the tech articles for clutch replacement, you will find a great write-up with pictures. One issue that many 914 owners have to address is your problem. Many owners put a washer under the pivot arm bolt to compensate for the metal turned off the flywheel. Its amazing how one washer can change the throw on the pivot arm. I've had to do this on two diffent 914 engine transmission combinations for the clutch to dissengage properly. |
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| RoadGlue |
Apr 27 2007, 12:31 AM
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#7
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California
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How much slop do you have in the arm? It's not supposed to be tight until the cable is installed. It should move back and forth a bit. Got a tape measure?
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| jd66921 |
Apr 27 2007, 12:34 PM
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#8
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Member Group: Members Posts: 316 Joined: 9-January 06 From: Texas Member No.: 5,394 |
Well, I got the transmission back on. I shimmed out the pivot ball and it
seemed pretty good. Maybe a little more free play than spec'd, but the clutch releases fine. Now I can continue installing the new engine and see what else breaks! Thanks for all the advice!! Jeff |
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