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Author Topic: RE-torqueing nuts/bolts.  (Read 3527 times)
Harry/FDK
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Every Rule Was Made To Break, Even Callook...


« on: December 28, 2011, 19:54:35 pm »

What do you racers do for re-torqueing your nuts/bolts...Do you loosen the fastener and then re-torque, or do you leave all as is and re-torque ?? (nobody is clear on it on the www.).

Thanks,
Harry
« Last Edit: December 28, 2011, 20:06:14 pm by Harry/FDK » Logged

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Andy Sykes
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« Reply #1 on: December 28, 2011, 20:07:32 pm »

Leave as is and re-torque

Cheers andy
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JS
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« Reply #2 on: December 28, 2011, 20:25:38 pm »

Loosen and re-torque.
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Harry/FDK
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Every Rule Was Made To Break, Even Callook...


« Reply #3 on: December 28, 2011, 22:29:01 pm »

Here we go  Roll Eyes
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richie
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« Reply #4 on: December 28, 2011, 22:31:30 pm »

Loosen and re-torque.

Same,although i have done it both ways and never really seen a diffeence,I always use a thread lube on anything that I torque so it is always repeatable

cheers richie
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TexasTom
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12.58@106, 7.89@89 Texas Motorplex 10/18/09


« Reply #5 on: December 28, 2011, 23:14:22 pm »

I also alwways loosen then retorque.
Hopefully not the case with someone's racecar, but otherwise you cant know if the fastener is frozen or partially siezed.
And yes, proper thread lubricant is quite helpful Wink

Any retorqueing instruction I have ever read/followed specified loosening first.

TxT
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tonybone
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« Reply #6 on: January 04, 2012, 17:00:37 pm »

Loosen then re torque. I used to do this method years ago when re torqing rod and main bearings on hypo race boat engines.

I've always followed the same method.

Hope this helps
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Harry/FDK
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Every Rule Was Made To Break, Even Callook...


« Reply #7 on: January 04, 2012, 18:11:29 pm »

Loosen and re-torque. That is my feeling too, since i ALWAYS use moly-lube, and wait for every component to be set.
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kingsburgphil
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« Reply #8 on: January 05, 2012, 02:45:13 am »

I won't address the torque/retorque issue or torque to yield. But... The default torque spec for bolts in general is
CLEAN and DRY. Unless otherwise specified. Not my opinion...fact. If it's critical, you have to go by the book.

There are of course exceptions to the rule, but haphazardly slopping oil/grease on every bolt can be foolish.

http://www.engineershandbook.com/Tables/torque1.htm

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