 What would cause this?, Clutch clevis spread? |
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| GWN7 |
 Aug 18 2005, 10:09 AM
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#1
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King of Road Trips  Group: Members Posts: 6,280 Joined: 31-December 02 From: Winnipeg, MB, Canada Member No.: 56 Region Association: Northstar Region  |
This is what caused the breakdown in Kelowna. Put the clutch in, backed up a hill, when to shift to neutral, pedal to the floor. Clevis spread and poped off the clutch pedal arm.
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| GWN7 |
Aug 18 2005, 10:14 AM
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#2
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King of Road Trips Group: Members Posts: 6,280 Joined: 31-December 02 From: Winnipeg, MB, Canada Member No.: 56 Region Association: Northstar Region |
Tryed to straighten it and the arm broke. Took it over to a friend of my buddys daughter and he happened to have a full welding shop at home. He tigged it back together. Even painted it. Looked better than new.
Got home with the car and took the son for a ride and the same thing happened again. Bent and poped off again. This time I took the one off the 73 so I could drive. So far so good. But why did this happen? Attached image(s) 
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| GWN7 |
Aug 18 2005, 10:16 AM
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#3
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King of Road Trips Group: Members Posts: 6,280 Joined: 31-December 02 From: Winnipeg, MB, Canada Member No.: 56 Region Association: Northstar Region |
I'm wondering if I need to replace the pin part with a cotter pin of the right size with a couple washers on the sides?
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| SLITS |
Aug 18 2005, 10:28 AM
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#4
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
The clevis pin had to have worked out of the hole to do that. I would have to look at an assembly to see which side is locked by the barrel tang (or whatever you want to call it).
EDIT: Now I remember...the barrel tang and pin are one piece....somehow it had to have backed out of the one side to pull on one side of the clevis. ??????? |
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| URY914 |
Aug 18 2005, 11:10 AM
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#5
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I built the lightest 914 in the history of mankind. Group: Members Posts: 120,632 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
It may also have to do with how your pedal freeplay is adjusted and the "stop" on the pedal board. You may be over stressing the cable/clevis/cable tube in the back.
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| DonTraver |
Aug 18 2005, 11:31 AM
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#6
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Senior Member Group: Members Posts: 829 Joined: 5-August 04 Member No.: 2,461 |
Had that happen on my 6, the hole in the pedal assy arm had elongated, cocking the pin in the hole. Welded up the hole and redrilled, problem gone. Good luck.
Don |
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| Porsche Rescue |
Aug 18 2005, 11:52 AM
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#7
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Saving and Enjoying Old Porsches Group: Members Posts: 2,978 Joined: 31-December 02 From: Bend, Oregon Member No.: 64 Region Association: None |
My money says Don got it right. Check the hole.
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| Cap'n Krusty |
Aug 18 2005, 12:22 PM
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#8
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
There's supposed to be a bushing in the hole. The OE bushing is plastic, and lasts quite a while under normal use. Too much loading on the pin causes the described failure, and that comes from clutch wear and other geometry problems inside the bell housing. The tubes break loose for the same reason. The Cap'n |
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| GWN7 |
Aug 18 2005, 02:42 PM
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#9
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King of Road Trips Group: Members Posts: 6,280 Joined: 31-December 02 From: Winnipeg, MB, Canada Member No.: 56 Region Association: Northstar Region |
I didn't see a bushing while in there (hard to see anything while down there) , so that could be the problem.
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| boxstr |
Aug 18 2005, 03:39 PM
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#10
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MEMBER:PACIFIC NORTHWEST REGION Group: Members Posts: 7,522 Joined: 25-December 02 From: OREGON Member No.: 12 Region Association: Pacific Northwest |
Bruce, Did you add the missing pedal board?
CCLINCLEVISANDBUTTHEAD |
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| GWN7 |
Aug 18 2005, 06:36 PM
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#11
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King of Road Trips Group: Members Posts: 6,280 Joined: 31-December 02 From: Winnipeg, MB, Canada Member No.: 56 Region Association: Northstar Region |
Yes, first thing I did once home.
I had a Engman one here, sitting looking pretty. Now it looks good in the car. (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) |
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