Bad pin day, Two strut-ball joint pins sheared |
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Bad pin day, Two strut-ball joint pins sheared |
billd |
Feb 2 2006, 12:59 AM
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#1
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Member Group: Members Posts: 327 Joined: 25-May 05 From: Palo Alto, CA Member No.: 4,145 |
The one on the left is a brand new pin from Pelican. It sheared at less than 30ft-lbs. The one on the right is the old pin that I then tried to re-use. It sheared between 40 and 44 ft-lbs.
The correct torque for these is 47 ft-lbs. Right? Attached image(s) |
messix |
Feb 2 2006, 01:00 AM
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#2
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
maybe inch pounds?
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Cap'n Krusty |
Feb 2 2006, 01:15 AM
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#3
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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 |
18 ft/lbs, just like any other 8mm threaded 8.8 bolt or stud. Your fault, NOT the part. The Cap'n
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bondo |
Feb 2 2006, 01:19 AM
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#4
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
Maybe 47 ft-lbs is the torque of the nut at the bottom of the ball joint?
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billd |
Feb 2 2006, 02:31 AM
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#5
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Member Group: Members Posts: 327 Joined: 25-May 05 From: Palo Alto, CA Member No.: 4,145 |
The torque on the bottom nut is 180 ft-lbs.
The factory manual clearly lists this "Suspension strut bottom to ball joint" as 47.0 ft-lbs. (page 0.2-2/1) or is this for the old style - that had a hex bolt here? |
blitZ |
Feb 2 2006, 05:55 AM
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#6
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Beer please... Group: Members Posts: 2,223 Joined: 31-August 05 From: Lawrenceville, GA Member No.: 4,719 Region Association: South East States |
I think that's for the castle nut on top of the ball joint. Sometimes I do a reality check when torqueing and I'm not sure if the torque value I found is correct. I ask myself, "Can that small threaded shaft handl xxx lbs"?, that's when I go double check my source. |
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IronHillRestorations |
Feb 2 2006, 08:25 AM
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#7
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I. I. R. C. Group: Members Posts: 6,717 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None |
That was a spendy FUBAR! (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif) Those wedge pins aren't cheap!
What the Cap'n said. |
rhodyguy |
Feb 2 2006, 09:13 AM
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#8
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,079 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
i've been down this road. a couple of tips. really clean the hole in the strut and put a dab of lubricant on the pin (i used clean engine oil). lightly drive the pin fully in with a drift and hammer, the driven end should be pretty flush. DO NOT use the nut to draw the pin in. just a little bit more and, shit!, there goes $15. luckily for you that parts qualifies for free shipping from the bird.
k |
Cap'n Krusty |
Feb 2 2006, 09:37 AM
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#9
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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 is no "castle nut on top of the ball joint", not on 911s and 914s. The 47 ft/lbs is for the 10mm through bolt on the early struts. Again, if you don't have a clear picture of the situation, do some research! This stuff gets into the archives and misleads others! The Cap'n |
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billd |
Feb 2 2006, 12:31 PM
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#10
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Member Group: Members Posts: 327 Joined: 25-May 05 From: Palo Alto, CA Member No.: 4,145 |
Thanks for the advice guys. That was pretty stupid of me. Particularly the second one. (IMG:http://www.914world.com/bbs2/html/emoticons/headbang.gif)
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Mueller |
Feb 2 2006, 12:38 PM
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#11
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
at least you only broke a simple pin that can be replaced easily...I have a friend that didn't know the differance between ft/lbs and in/lbs....the aluminum case of his C4 transmission in his '66 Mustang suffered major damage from nearly 12 times too much torque trying to be applied (IMG:http://www.914world.com/bbs2/html/emoticons/headbang.gif) |
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