In Reply to: Re: saana88-if you actually read the post..., DivrDon [Profile/Gallery] , Sun, 13 Apr 2008 09:16:05

As DivrDon says, these are bolts "in shear" and the force is mainly taken even then not by the bolts but by the socket in the A-arm that the ball joint forging slides into, the bolts just hold it in position. The forces are mainly up and down and in and out on the shanks of the bolts, not much against the bolt head or the nut and threads.
The nut only needs to be set down so it doesn't want to loosen, so maybe even much softer bolts than Saab's are adequate to hold against the needed torque.
I disagree with Zig's what I'd call overcautious comment that bolt threads wear or that they even weaken. And in my experience the nylon keeper insert in automobile nuts is not much degraded by age or by being loosened and retightened, though maybe after many many removals it will lose some of its squeeze and effect. I also doubt that that feature of the nuts ever gets called on in real world use - - the force that holds these from loosening is the good old fashioned one of enough tightening but not too much.

The same comments about strain also apply to the nut on the lower front shock mounting stud. Just tight enough. Apparently a lot of these get stripped of their threads or snapped off by over-careful owners. (This doesn't apply to you, nicknick, and I believe you when you say you didn't overdo it on the ball joint bolts too.)

posted by 71.241.219...

• Should we be worried???, nicknick , Sat, 12 Apr 2008 17:42:05
  • Re: Should we be worried???, Mike in Cleveland, Sat, 19 Apr 2008 18:47:51
  • Nick, what was the setting on your torque wrench? (n/m), Siegfried, Sun, 13 Apr 2008 10:07:43
    • didn't get that far, Zig. was setting up for TW time,, nicknick , Sun, 13 Apr 2008 10:49:29
      • Nick, know what? (+), Siegfried, Sun, 13 Apr 2008 16:02:47
        • Thanks Zig-putting a lighter note on it! i am using the, nicknick , Sun, 13 Apr 2008 16:51:24
          • Can't say it's a good idea..., Siegfried, Sun, 13 Apr 2008 17:36:42
            • Now Zig-my aircraft repairing buddies have told me, nicknick , Sun, 13 Apr 2008 19:29:28
        • Life happens 100% :) (+), Siegfried, Sun, 13 Apr 2008 16:12:20
  • Re: Should we be worried???, RayJ, Sat, 12 Apr 2008 22:21:15
    • didn't look used to me, could be wrong,it's in the, nicknick , Sat, 12 Apr 2008 22:25:56
  • Nah - Defects Happen...., Jonathan Scupin , Sat, 12 Apr 2008 21:33:05
  • Re: Should we be worried?, Saana88 , Sat, 12 Apr 2008 21:22:49
    • saana88-if you actually read the post..., nicknick , Sat, 12 Apr 2008 23:03:18
      • Did I?, Saana88 , Sun, 13 Apr 2008 10:20:32
        • Understood-calling a truce... we are all just trying to, nicknick , Sun, 13 Apr 2008 10:42:12
      • Re: saana88-if you actually read the post..., vvack0matic , Sun, 13 Apr 2008 09:00:23
        • Re: saana88-if you actually read the post..., DivrDon , Sun, 13 Apr 2008 09:16:05
          • Don't seem like bolts that need lots of torque., RayF, Mon, 14 Apr 2008 09:19:46 <-- Viewing This Message
          • manual specifys 30-40ft/lb for those bolts- i was just, nicknick , Sun, 13 Apr 2008 09:42:46
        • Call 'em my 'Big Guns!' from my BK days- gonna get, nicknick , Sun, 13 Apr 2008 09:12:02
    • how much torque can i apply with a 10" wrench??nm, nicknick , Sat, 12 Apr 2008 21:59:37
      • I had the same thing happen..., ZAAB , Sun, 13 Apr 2008 07:00:36
        • If originals not mangled, I'd just re-use them., RayF, Sun, 13 Apr 2008 13:51:56
          • i agree-that's what i ended up doing! thanks, nm, nicknick , Sun, 13 Apr 2008 15:59:58
        • Re: Yup-Happened out here, Roger D , Sun, 13 Apr 2008 07:17:18
        • Yep-these were the cheaper ones... ok, going to use my, nicknick , Sun, 13 Apr 2008 07:09:55
  • Re: Should we be worried???...... oh my......., vvack0matic , Sat, 12 Apr 2008 17:52:02

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