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JZZ30MAN
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Location:
NSW
Registered:
August 2002
Re: Retorquing 7MGTE Head Fri, 14 February 2003 02:42 Go to previous messageGo to previous message
I have had 3 off &M BHG's and I have no faith in the retorque after speaking to a lot of people a few years ago.

If you want to do it you should start with the torque wrench at 50ft/lbs then say 58 (OEM torque), then 62, then 68, then 72 max.

Problem is there is a good chance the HG will crack when doing this retorque, also head bolt threads have not been cleaned nor the threads in the block and no lubrication.

Also I have heard that the bolt should be backed off a 1/4 turn before tightening.

Good luck. I'd be changing the HG and bolts. Also considering alternative engine management and a new knock sensor if SupraGTE's experiences are anything to go by. Which I think they are.

Michael
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SubjectPosterDate
Read Message   Retorquing 7MGTE Head rvrollaThu, 13 February 2003 15:08
Read Message   Re: Retorquing 7MGTE Head 7mgte83Fri, 14 February 2003 01:15
Read Message   Re: Retorquing 7MGTE Head rvrollaFri, 14 February 2003 01:25
Read Message   Re: Retorquing 7MGTE Head 7mgte83Fri, 14 February 2003 01:27
Read Message   Re: Retorquing 7MGTE Head rvrollaFri, 14 February 2003 01:30
Read Message   Re: Retorquing 7MGTE Head rob_RA40Fri, 14 February 2003 01:30
Read Message   Re: Retorquing 7MGTE Head rvrollaFri, 14 February 2003 01:34
Read Message   Re: Retorquing 7MGTE Head rob_RA40Fri, 14 February 2003 01:46
Read Message   Re: Retorquing 7MGTE Head  JZZ30MANFri, 14 February 2003 02:42
Read Message   Re: Retorquing 7MGTE Head ROBBO_ma61Fri, 14 February 2003 07:29
Read Message   Re: Retorquing 7MGTE Head wilbo666Fri, 14 February 2003 14:36
Read Message   Re: Retorquing 7MGTE Head rvrollaFri, 14 February 2003 22:55
Read Message   Re: Retorquing 7MGTE Head SUPRAGTESat, 15 February 2003 00:02
Read Message   Re: Retorquing 7MGTE Head wilbo666Sat, 15 February 2003 00:36
Read Message   Re: Retorquing 7MGTE Head ROBBO_ma61Sat, 15 February 2003 00:40
Read Message   Re: Retorquing 7MGTE Head rvrollaSat, 15 February 2003 00:47
Read Message   Re: Retorquing 7MGTE Head 1ndecentSat, 15 February 2003 08:51
Read Message   Re: Retorquing 7MGTE Head JZZ30MANSun, 16 February 2003 22:48
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