04-09-2021, 09:00 AM | #29 | |
Drives: 2014 Camaro SS Join Date: Jan 2019
Location: Southern California
Posts: 253
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Quote:
The suspension bolts you’re referring to originally are not TTY bolts. They’re standard bolts that use angular torque. So while you may think you’ve been reusing TTY bolts, you’re completely misunderstanding the difference between TTY and angular torque.
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04-09-2021, 09:18 AM | #30 | |
Drives: 2013 1SS Join Date: Dec 2012
Location: New Jersey
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04-09-2021, 01:08 PM | #31 | |
Fast Cars and Old Guitars
Drives: 2015 2SS RS (L99, baby!) Join Date: Apr 2012
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Quote:
So what we’ve seen in this thread is, people that use the bolts over, people that would never dream of using the bolts over, people who the torque the bolts to something slightly greater than 30 foot pounds and a 230LB powerlifter who couldn’t even achieve the 90° turn. My rotors and pads should be here today or Monday, I’m gonna have to make some kind of decision and I’m leaning towards about a 30 to 45° turn beyond the initial torque setting and depending on the Loctite to do the rest. Feel free to pick that one apart!
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04-09-2021, 01:51 PM | #32 | |
Drives: 2013 1SS Join Date: Dec 2012
Location: New Jersey
Posts: 714
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The factory bolts come with dry yellow loctite. Depending on how lubricious the loctite is, you may be able to achieve the required 90 degrees of torque. I didn't torque mine to spec when I replaced them, but I will definitely check them when I put my summer tires on this weekend. |
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04-09-2021, 02:00 PM | #33 |
Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012
Location: Southeast, PA
Posts: 2,078
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Do what you want.
At this point, you know all of the information regarding the bolts and you are going to do whatever you want to do when changing your brakes. I personally spent the $30 and got new bolts from the dealer, and torqued to spec (to the best of my ability).
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04-09-2021, 02:24 PM | #34 | |
Fast Cars and Old Guitars
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04-09-2021, 03:01 PM | #35 |
Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012
Location: Southeast, PA
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There should be yellow loctite from the factory, shouldn't need to add anything else.
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04-09-2021, 04:13 PM | #36 | |
Drives: 2014 Camaro SS Join Date: Jan 2019
Location: Southern California
Posts: 253
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Quote:
Getting the proper torque is not difficult and you don’t need to be a weight lifter to do it. All you need is leverage. Use a breaker bar and a cheater bar. Get a long piece of thick metal pipe from Home Depot and slip it over your breaker bar. The longer it is, the more leverage you have to get it torqued down properly.
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04-09-2021, 04:59 PM | #37 |
Fast Cars and Old Guitars
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Screaming Chicken bolts, no loctite. And, yes, I’m familiar with a moment arm. I’ll send pics of it all when done and put out a 3-state warning to steer clear of my Camaro with the compromised brake system! Seriously, thanks for all the input, gents.
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04-09-2021, 05:36 PM | #38 | |
376 cubic inches of fun
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Torque is an indirect measurement of what you are trying to achieve when tightening a bolt, namely axial load. That torque is affected by fastener friction, which can vary a lot. The direct measurement of bolt elongation would be the best measurement bu is impractical in most situations. Degrees of turning the bolt would be next, and a torque wrench measurement would be the furthest removed from determining that the target axial load is achieved. I spent my engineering career on precision instruments, where fastener loads are critical. Your best bet here is to follow the assembly instructions and don't worry about the torque wrench when you have instructions for a more accurate method. |
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04-09-2021, 08:27 PM | #39 | |
Drives: Camaro 1LE Join Date: May 2018
Location: USA
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04-10-2021, 06:58 PM | #40 |
Fast Cars and Old Guitars
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Well, best laid plans...AutoZone had a loaner tool program so I checked out 30-200 ft lb torque wrench. On the 2nd pull on the first wheel, the wrench exploded (@33ft lbs) and the guts went flying. I found all the parts but the screws that hold it together. Bum wrench.
So after three pages, it got the ‘calibrated elbow’ treatment after all on the two fronts because they only had one wrench. It was all about the new rotors anyway.
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04-11-2021, 08:49 AM | #41 | |
Drives: 2011 Inferno Orange Camaro 2SS/RS Join Date: Nov 2011
Location: Pittsburgh, PA
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I have been working on cars over 40 years. Never one broken or seized bolt issue. |
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