LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Need help finding intake torque specs

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Old 09-12-15, 12:06 PM
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Tommy2JZ
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Default Need help finding intake torque specs

So I did a starter job on my car. Was horrible haha. All I need now is the torquing sequence for the upper and lower intake manifolds. My car is together now but has a huge air leak. That's why I need it because I need to fix it haha. Any who if you guys can help me find it it'd be awesome. I've been searching for a couple days already to no avail.



My car. Have a mountain of parts waiting to be installed.
Old 09-12-15, 12:26 PM
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dicer
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Maybe a gasket got out of place. Air leak!
Old 09-12-15, 02:44 PM
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sha4000
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13 ft. lbs.
http://www.lextreme.com/torque.html
Old 09-13-15, 01:01 AM
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Tommy2JZ
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Originally Posted by dicer
Maybe a gasket got out of place. Air leak!
.. I know why I'm redoing the manifold Gasket. Lol
Old 09-13-15, 01:03 AM
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Tommy2JZ
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Originally Posted by sha4000
Torque spec sequence diagram,

Already had the specs, need the tightening order
Old 09-13-15, 05:30 PM
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sha4000
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I don't believe there's an actual sequence though I could be wrong. I would just torque them in a star pattern like you would do a tire to evenly distribute the pressure. This is what it say's in the FSM.

(b) Place the intake manifold assembly on the cylinder
heads.
(c) Install and uniformly tighten the 6 bolts and 4 nuts in several
passes.
Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)

Last edited by sha4000; 09-13-15 at 05:36 PM.
Old 09-13-15, 08:34 PM
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jaaa
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Originally Posted by Tommy2JZ
Torque spec sequence diagram,

Already had the specs, need the tightening order
Just did my starter on an 96. I started in the middle at 10ft/pds and then worked progressively outward. Then went to 13 pounds and did the same pattern. I actually did it twice with no problems(had a coolant leak on my first attempt on assembly).
Old 09-14-15, 12:36 AM
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Originally Posted by jaaa
Just did my starter on an 96. I started in the middle at 10ft/pds and then worked progressively outward. Then went to 13 pounds and did the same pattern. I actually did it twice with no problems(had a coolant leak on my first attempt on assembly).
Turns out Injector is leaking air. Lol yup. Oops
Old 09-14-15, 11:21 AM
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dicer
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I don't know the gen 2's but on the gen 1 there is zero reason to remove the injectors to remove the intake. Its just something else not to have to deal with when doing the starter.
Old 09-14-15, 07:07 PM
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sha4000
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No need to remove injectors on the 98 either.
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