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AtomicDog's Avatar
 
Join Date: Oct 2005
Location: Ocean County, NJ
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Actual torque spec for TTR to rack, etc?

All,

A search has netted nothing more than some random guidance on the use of Loctite.

What is the actual torque spec for the TTR to the steering rack?

The Bentley doesn't even give the spec for the 911 style "rack adapter", with it's less critical, jamb nut equipped connection.

Spec book owners, please help.

TIA

Chris

While we're on the subject, when installing Bilstein inserts for Boge struts (late '85 to '89), what is the torque spec for the strut insert retaining nut/seal?

C

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Old 09-20-2006, 04:50 AM
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Bueller?

C
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Old 09-20-2006, 06:17 PM
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You have to be kidding...

C
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Old 09-21-2006, 11:18 AM
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If I'm only talking to myself, so be it.

I checked out a prevailing torque table for M16 bolts - consistent with the turbo tie-rod mounting stud. For those of you who would try to do this with a wrench, I might recommend otherwise.

Best-case scenario:

Class 8.8, M16, 2.0 has a prevailing torque of 247 N*m

= 180.7 ft-lbf.

If you give yourself credit for anaerobic thread locking compound and zero running torque to the tune of a 10% reduction, you still must torque to 162.6 ft-lbf.

Any deviation from the above assumptions - 10.9, 1.5 pitch, slight running torque, or dry assembly could push the prevailing value to nearly 250 ft-lbf!

I would not want to meet the man who could generate 250 ft-lbf with a pair of channel lock pliers...

Chris
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Old 09-21-2006, 06:11 PM
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TTR = Turbo Tie Rods?

- not that I know the torque, but you at least have a bump, AND the sanity of knowing you are not always just echoing your own thoughts into the V.U.P.

(Vast Universe of the Pelican)
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Old 09-22-2006, 12:30 PM
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Thanks, Randy.

Today, I consulted the SmartRacing website, where they quoted 35 ft-lbf and Loctite blue.

This came with the caution - "Do not overtorque!"

Wonder what gives?

Now I'm really confused.

Chris

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Old 09-22-2006, 02:36 PM
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