Upper control arm bolt ?'s
Thread Starter
Melting Slicks
Joined: Jul 2008
Posts: 2,269
Likes: 142
From: Ottawa Ontario
Upper control arm bolt ?'s
Replacing the bushings in the upper control arms & have a couple of questions regarding the large end bolts:
1. How much heat is required to melt the red, factory thread locker used on these threads? Will a propane torch be enough, or will I need a mapp/oxygen type?
2. What torque should they be tightened to after the new bushings are in? There doesn't appear to be a factory spec for this since Chevy recommends replacing the whole control arm when the bushing wears out.
Thanks
1. How much heat is required to melt the red, factory thread locker used on these threads? Will a propane torch be enough, or will I need a mapp/oxygen type?
2. What torque should they be tightened to after the new bushings are in? There doesn't appear to be a factory spec for this since Chevy recommends replacing the whole control arm when the bushing wears out.
Thanks
Team Owner
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I've done that three times and never needed heat to remove the
big nut. You install the bushings, apply thread locker and torque
them to 40 lbs-ft.
big nut. You install the bushings, apply thread locker and torque
them to 40 lbs-ft.
Thread Starter
Melting Slicks
Joined: Jul 2008
Posts: 2,269
Likes: 142
From: Ottawa Ontario
Race Director
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From: The Top of Utah
Race on!!!
Jim
Safety Car
Joined: Nov 2009
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From: Adelaide South Australia
Hi RUU, do not apply heat to those nuts, they are simply nylock nuts, take them off as per normal and buy new ones, do not re use those nuts, if you do they will eventually come loose. The threaded bar that these nuts bolt to is aluminum, so dont use heat.
As far as tightness goes, put the centre of the threaded arm in the vice (with padding) and do up the nuts till you can only just pull the A arm up and down with your hands.
As far as tightness goes, put the centre of the threaded arm in the vice (with padding) and do up the nuts till you can only just pull the A arm up and down with your hands.
Thread Starter
Melting Slicks
Joined: Jul 2008
Posts: 2,269
Likes: 142
From: Ottawa Ontario
(Belated) Thanks for all the replies. Upper arms are R, R & R (removed, rebuilt and replaced).
Found new locking nuts at Fastenal. (sorry for the crappy close-up)
BTW, no pics, so you'll have to trust me it happened - no press to call my own, so I enlisted the help of my dad & his log splitter to press out the old bushings! A father-son red-neck moment, for sure.
Found new locking nuts at Fastenal. (sorry for the crappy close-up)
BTW, no pics, so you'll have to trust me it happened - no press to call my own, so I enlisted the help of my dad & his log splitter to press out the old bushings! A father-son red-neck moment, for sure.
