exhaust manifold torque spec

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pnoy

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Joined Oct 6, 2004

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4,267 Posts

Discussion starter · #1 · Jul 16, 2006

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I keep losing one bolt on my turbo manifold and it's always the same stud. My question is how tight does it have to be in it?

 

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Smaay

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Joined Jun 21, 2001

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15,376 Posts

#2 · Jul 17, 2006 (Edited)

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is it a bolt or stud? if you keep loosing a bolt, get an OEM MKIV supra exhaust stud. put some locktite on it and then use a nut. tighten it down as tight as you can with 2 wrenches. i have all supra studs in my head for the manifold. i even use MKIV nuts too

 

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Burnout

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Joined May 6, 2005

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61 Posts

#3 · Jul 13, 2015

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Anyone ever found a torque spec for exhaust manifold studs?

I've searched all over. I found it convenient the 2003 Corolla edition of the 1zzfe manual had torque specs for all the studs going into the block. Been trying to find the same for the head.

 

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Burnout

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Joined May 6, 2005

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61 Posts

#4 · Jul 13, 2015

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Found it: 84 in-lbs

http://madstyle1972.com/Repair/14/20jb2c04/w040001.pdf

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