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richierich Samba Member
Joined: December 23, 2004 Posts: 889
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Posted: Wed Apr 12, 2017 8:06 am Post subject: Adjusting clutch pedal stop |
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Hi all. I can't get enough clutch pedal free play by adjusting at the wing nut at the trans end so I figured I should move my clutch pedal stop forward a little. I just cannot figure out how to do it. Here is my setup:
I undid the two bolts at the back and tried to move the stop towards the front of the car a little but it won't budge. Is the part that the clutch pedal pivots in separate to the stop? I can't see how the stop will slide forward if not. Anyone help? What am I doing wrong?
Rich |
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Cusser Samba Member
Joined: October 02, 2006 Posts: 31361 Location: Hot Arizona
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Posted: Wed Apr 12, 2017 8:37 am Post subject: Re: Adjusting clutch pedal stop |
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richierich wrote: |
Hi all. I can't get enough clutch pedal free play by adjusting at the wing nut at the trans end so I figured I should move my clutch pedal stop forward a little. I just cannot figure out how to do it. What am I doing wrong?
Rich |
Rich - you need to fix what's wrong at the wing nut end. Because someday there will be an issue there, so take care of it while it's "convenient" - like now.
If your wingnut won't turn at all no matter how much you spray penetrant on it and hold cable steady with Vise-Grips, then it's time to cut the cable and install a new cable and new wingnut.
If your issue is that the wingnut won't tighten enough to get correct adjustment, then your cable is stretched or was the wrong length, your disc is worn thin, your pedal hook is worn or breaking, your pedal is cracked and breaking, or a clutch tube mount inside the tunnel has broken. _________________ 1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
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richierich Samba Member
Joined: December 23, 2004 Posts: 889
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Posted: Wed Apr 12, 2017 9:07 am Post subject: Re: Adjusting clutch pedal stop |
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Cussler - my wingnut is good and free. The issue is, if I try to set the pedal free play using the wing nut, the release bearing feels like it is hard against the pressure plate ring (the arm won't move much towards the front of the car) before the proper pedal free play amount is reached......if that makes sense??
Can anyone shed any light on this?? I am seriously stumped. |
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richierich Samba Member
Joined: December 23, 2004 Posts: 889
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Posted: Thu Apr 13, 2017 9:05 am Post subject: Re: Adjusting clutch pedal stop |
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Nobody got anything huh? |
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KTPhil Samba Member
Joined: April 06, 2006 Posts: 34003 Location: Conejo Valley, CA
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Posted: Thu Apr 13, 2017 9:19 am Post subject: Re: Adjusting clutch pedal stop |
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I'm not sure you have a problem. The clutch pedal freeplay is not quite like the brake pedal freeplay.
The brake freeplay is an airgap between the pushrod tip and the master cylinder piston. There is no intervening hardware, so it's a "hard gap" and can easily be felt directly.
The clutch freeplay is not quite so clear. The goal is to set the gap between the throwout bearing and the pressure plate ring or fingers, which of course you can't observe directly. In between your foot and this gap are: the pedal assembly, cable hook, the cable, the Bowden tube, the bell housing lever, the TO bearing fork, and the TO bearing itself. There is play/hysteresis on all of these, and it adds up in a slightly inconsistent and soft-feeling way. There is no hard stop like with the brake adjustment. You push with your hand, and feel when the drag gets stiffer. It's not on/off, it's a point of increased force. I usually press it about halfway up the pedal arm, and push it quickly/gently/repeatedly and note where I stop on average. That's the "gap" or freeplay you are looking for.
It appears you don't have a stock pedal, and so the geometry can be different, including the hook inside the tunnel. This could change things, but I'd sooner expect you just have to loosen the cable more than you think. Worse scenarios are that your TO bearing fork is hosed up or loose inside the bell housing. |
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richierich Samba Member
Joined: December 23, 2004 Posts: 889
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Posted: Thu Apr 13, 2017 9:41 am Post subject: Re: Adjusting clutch pedal stop |
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Phil - thanks for the reply and this is exactly what is confusing me. The TO bearing is new, HD clips, new Kennedy Stage 2 plate, new Daikin Super disc. The cable does need to be looser obviously because the bearing feels like it is hard against the plate but if I loosen the wingnut any more than it is now, I cannot get gears at all. It's really quite frustrating. |
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Dale M. Samba Member
Joined: April 12, 2006 Posts: 20378 Location: Just a tiny bit west of Yosemite Valley
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Posted: Thu Apr 13, 2017 9:42 am Post subject: Re: Adjusting clutch pedal stop |
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Actually part you are trying to adjust does not look like pedal stop to me but a support against thrust on pedal shaft....
You issues are probably somewhere in areas other have mentioned like worn hook on clutch shaft, stretching cable (cable too long?) improper angle on bouden tube.... Clutch free play should be about 1 to 1.5 inches as you depress pedal and clutch under power will start to slip and you will get full clutch disengagement with full pedal depression...
Dale _________________ “Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.
"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
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All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ... |
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vwbrewer Samba Member
Joined: March 23, 2009 Posts: 201 Location: San Antonio
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Posted: Sun Feb 24, 2019 3:37 pm Post subject: Re: Adjusting clutch pedal stop |
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That mount on the floor should be 2 pieces. The bottom piece is the stop and can be skid back and forth. _________________ 1957 Oval Rag |
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