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STR8 2.8 Forums Junkie Location: Sydney Registered: February 2003	Re: re-using 4AGE head bolts? Wed, 17 August 2005 12:13 Nobody wrote on Wed, 17 August 2005 22:08 Today was the first time I used torque to yield bolts. This was on a 5SFE. The initial torque was about 50Nm (36ft lb). While turning the final 90 degrees, it felt like a few of the bolts stretched (like they had momentarily stripped their thread). After finishing I wanted to know if all the bolts were evenly torqued, so I set the torque wrench to where the bolts would just move and it was about 95Nm. I tried all the bolts at 95Nm and only 2 wouldn't go to that torque. I probably moved one about 30 more degrees, but it still wouldn't get to 95Nm. As I didn't want to break the bolt, I left it at that. So to me it appears that torque to yield appears to hold the gasket down really tight, but not entirely even across all bolts. I'm interested to know what other people have experienced with torque to yield bolts. Any comments? Also after cleaning the old bolts and seeing how corroded/damaged they were on the threads, I decided to spend the $80 on new bolts. The ACL value regrind set also recommended to use new bolts. did you grease the bolts first? [Report message to a moderator]

	Subject	Poster	Date
	re-using 4AGE head bolts?	TE72_Turbo	Sun, 04 August 2002 10:29
	Re: re-using 4AGE head bolts?	jazae86	Sun, 04 August 2002 11:23
	Re: re-using 4AGE head bolts?	Grega	Sun, 04 August 2002 11:46
	Re: re-using 4AGE head bolts?	jazae86	Sun, 04 August 2002 12:11
	Re: re-using 4AGE head bolts?	Rex_Kelway	Sun, 04 August 2002 13:36
	Re: re-using 4AGE head bolts?	BradW	Thu, 18 August 2005 09:34
	Re: re-using 4AGE head bolts?	Steve-AE86	Sat, 20 August 2005 08:03
	Re: re-using 4AGE head bolts?	oldcorollas	Sat, 20 August 2005 08:24
	Re: re-using 4AGE head bolts?	dorikin	Sun, 04 August 2002 14:40
	Re: re-using 4AGE head bolts?	Grega	Sun, 04 August 2002 22:04
	Re: re-using 4AGE head bolts?	TE72_Turbo	Mon, 05 August 2002 09:08
	Re: re-using 4AGE head bolts?	Nobody	Wed, 17 August 2005 12:08
	Re: re-using 4AGE head bolts?	STR8 2.8	Wed, 17 August 2005 12:13
	Re: re-using 4AGE head bolts?	Nobody	Wed, 17 August 2005 12:26
	Torque to yield bolts	Nobody	Thu, 18 August 2005 08:13
	Re: re-using 4AGE head bolts?	EVOSTi	Thu, 18 August 2005 10:25
	Re: re-using 4AGE head bolts?	kingmick	Sun, 21 August 2005 04:32
	VRS - VALUE regrind	Nobody	Fri, 19 August 2005 13:40
	Re: re-using 4AGE head bolts?	TE72_Turbo	Sat, 20 August 2005 12:20
	Re: re-using 4AGE head bolts?	Big T	Sun, 21 August 2005 00:21
	Re: re-using 4AGE head bolts?	allencr	Sun, 21 August 2005 03:24
	Re: re-using 4AGE head bolts?	tricky	Sun, 21 August 2005 04:45
	Re: re-using 4AGE head bolts?	EVOSTi	Sun, 21 August 2005 09:55
	Re: re-using 4AGE head bolts?	kingmick	Sun, 21 August 2005 10:15

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