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Holbert 928 with serious brake/clutch pedal assembly problem

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Old 01-25-2008, 03:21 PM
  #16  
Bill Ball
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That's not a bushing. That's the shaft end. The bushings are part 16, only on either side of the brake pedal. However, the shaft should not be loose in the clutch pedal - if the shaft has a lot of slop in the clutch pedal, the bearings (20) are gone. If the end of the shaft is not snug in the bracket, then somehow the bracket hole got mooched.

Since you never noticed this, as long as the pedal assembly is intact, you could just live with it, if it's bushings or bearings. Take a little closer look and figure out which parts are allowing the assembly to move and if they should be replaced before the assembly comes out of the bracket, if that is the problem.

Taking it apart and replacing bearings and bushings doesn't look to be too bad. WSM volume 2, pages 30-2e-f.
Old 01-25-2008, 03:26 PM
  #17  
mark kibort
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so, it looks like the shaft doesnt move around the clutch and brake pedals, just around that end bushing. Im wondering if that part IS part of the shaft and it broke off. see in the earlier pics above, how its off center . the shaft is much smaller diameter than that end bushing or "shaft end" as you say. as that shaft end mounts to the bracket, the shaft moves around the shaft end, so the shaft is not fixed solid with the bracket. thats how its moving around.

if that shaft should have this end piece welded on or if it was one piece, then thats what i need. now i wonder if thats the issue, is it worth pulling it out and not being able to get any of this stuff back in!

mk


Originally Posted by Bill Ball


That's not a bushing. That's the shaft end. The bushings are part 16, only on either side of the brake pedal. However, the shaft should not be loose in the clutch pedal - if the shaft has a lot of slop in the clutch pedal, the bearings (20) are gone.
Old 01-25-2008, 03:35 PM
  #18  
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OK, so you've narrowed it down to the shaft left end. It wouldn't appear to be critical, as long as that button end can't pop off the shaft entirely.

I know keeping the pieces-parts aligned while replacing the shaft looks like it could be a problem. Something like a screwdriver shaft or 1/4" or 3/8" socket extension shoved in from the right side as you remove the shaft to replace it would keep things aligned.
Old 01-25-2008, 03:42 PM
  #19  
Mike Simard
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Mark, that bushing on the end of the shaft spins freely. I may have been wrong about it being a roller bearing but it does spin and is staked onto the pin or something. That bushing also has a flat and the hole in the bracket is D-shaped which can make re-assembly challenging.
Old 01-25-2008, 04:11 PM
  #20  
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i noticed that. the entire thing looks like a disaster. im upside down, the blood rushes to your head, i cant move anything and there is no room for any tools.
Whaaaaaa!
mk
Originally Posted by Mike Simard
Mark, that bushing on the end of the shaft spins freely. I may have been wrong about it being a roller bearing but it does spin and is staked onto the pin or something. That bushing also has a flat and the hole in the bracket is D-shaped which can make re-assembly challenging.
Old 01-25-2008, 04:39 PM
  #21  
John Veninger
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the entire thing looks like a disaster. im upside down, the blood rushes to your head, i cant move anything and there is no room for any tools.
just another typical 928 repair
Old 01-25-2008, 04:43 PM
  #22  
Bill Ball
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Pull the motor and cut a hole in the firewall.
Old 01-25-2008, 04:46 PM
  #23  
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Your pin has moved to the driver's side either from structural changes in the frame there, or from the clip that mike identified on the RIGHT side - or the clip is not there, and you have been pushing on the metal with no support. That frame is taking the brunt of your foot pressure instead of the bearings.





Old 01-25-2008, 04:50 PM
  #24  
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The frame has taken the brunt of your foot for now for what looks like a while. You have elongated the hole there because the rod was unsupported in the hole.
Old 01-25-2008, 04:53 PM
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And as you can see, technically, if that pin comes out, then the brake pedal could become unsupported partially. Very bad.
Old 01-25-2008, 06:59 PM
  #26  
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i pulled the pin,thinking the shaft would just slide out. now i cant get the pin back on the hole, i cant see it, even with my eyeglasses ( im getting old!) because your face is right up against it.

anyone know were the flat is on the frame mount, so i can orient that pin, as it has a "D" and flat side. i think the flat looks like its toward the rear of the car.

trying to get all that stuff lined up is like herding cats.

ahhhhhhh

once i get it back in, and put the circlip back on , then im convinced it will be plenty strong enough. as it was before , before my **** BMW friend suggested this HAD to be fixed!

mk

Originally Posted by BrendanC
And as you can see, technically, if that pin comes out, then the brake pedal could become unsupported partially. Very bad.
Old 01-25-2008, 07:15 PM
  #27  
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hows this for a close up?

here is the problem. but, at least i know that the flat side is toward the rear of the car. thank god for this new camera! I put it way up there and clicked!

check it out.

mk
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Old 01-25-2008, 07:23 PM
  #28  
Charley B
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I think I'd pull the seat out before putting myself in for that contortion excersize.
Old 01-25-2008, 07:31 PM
  #29  
Bill Ball
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Yeah, and the steering wheel, as advised in the WSM.
Old 01-25-2008, 08:16 PM
  #30  
Jim bailey - 928 International
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Workshop manual ????


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