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Title: RE-torqueing nuts/bolts. Post by: Harry/FDK 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 Title: Re: RE-torqueing nuts/bolts. Post by: Andy Sykes on December 28, 2011, 20:07:32 pm Leave as is and re-torque
Cheers andy Title: Re: RE-torqueing nuts/bolts. Post by: JS on December 28, 2011, 20:25:38 pm Loosen and re-torque.
Title: Re: RE-torqueing nuts/bolts. Post by: Harry/FDK on December 28, 2011, 22:29:01 pm Here we go ::)
Title: Re: RE-torqueing nuts/bolts. Post by: richie 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 Title: Re: RE-torqueing nuts/bolts. Post by: TexasTom 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 ;) Any retorqueing instruction I have ever read/followed specified loosening first. TxT Title: Re: RE-torqueing nuts/bolts. Post by: tonybone 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 Title: Re: RE-torqueing nuts/bolts. Post by: Harry/FDK 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.
Title: Re: RE-torqueing nuts/bolts. Post by: kingsburgphil 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 |