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Registered:
July 2002
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 7mgte head torque????
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Tue, 17 December 2002 09:03
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im just about to install a trust 2mm thick metal head gasket in my 7mgte. how many Nm (or equivalent) should it b torqued down, when should it be retorqued and should i get new head bolts?
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Location:
Lost in the K hole
Registered:
May 2002
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Re: 7mgte head torque????
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Tue, 17 December 2002 09:50
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72ft/lbs torque
re tourque after 500-1000 km
use new bolts (at least)
make sure you have the block resurfaced as well as the head
ed
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Location:
North Sydney
Registered:
May 2002
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Re: 7mgte head torque????
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Tue, 17 December 2002 09:59
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Why did you go the 2mm HG?
She's gonna be a bit sluggish off boost or are you going to run massive boost?
How much btw?
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Registered:
July 2002
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Re: 7mgte head torque????
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Tue, 17 December 2002 11:19
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from what i had read adn information i had been given the head on a 7m is the engines weakest point, so i wasnt going to replace it with anything soft, why 2mm? drop comp a little, it allready had a about a 1.5mm copper and the car performed well , but it corroded to easily(long story) thus the metal.
it is a grex trust i had it imported from japan , it was about $480 plus postage.
is there a specific brand that can supply the bolts?
should they b different to standard?
ive heard of arp bolts or something what is that???
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Registered:
July 2002
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Re: 7mgte head torque????
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Tue, 17 December 2002 11:20
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oh and thatnks for the replies!
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Location:
North Sydney
Registered:
May 2002
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Re: 7mgte head torque????
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Tue, 17 December 2002 11:28
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ARP are the go if your going to replace them and you really should. I've seen alot of results from metalurgical companies who have performed tests on the factory 7mgte head bolts and they are like cheese sticks. Too soft and malluable when they are in their operating temperature range. All head bolts are designed with this ability to stretch but the factory ones go too far.
Go for the ARP ones, most car places should be able to get them. Try star performance in five dock.
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