lower intake manifold torque specs - F150online Forums



lower intake manifold torque specs

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  #1  
Old 04-07-2004, 07:56 PM
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lower intake manifold torque specs

Anyone have the torque specs for the intake manifold to the heads and if possible also the intake to the baffle or whatever that thing is under there. Thanks.

4.6 romeo engine.
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Old 04-07-2004, 09:14 PM
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ttt
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Old 04-07-2004, 09:16 PM
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All the bolts (to engine and to heads) have the same torque specs. First do the engine mounting bolts, then the bolts to the head, torque them in 2 stages:
Stage 1 - 18lb-in
Satge 2 - 89lb-in
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Old 04-07-2004, 09:18 PM
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i've got it downstairs right now but i didn't notice any maniford to engine bolts. lemme go double check, i thought they all bloted to the head.

Thanks a bunch tho.
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Old 04-07-2004, 09:20 PM
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yeah they all bolt to the heads, 9 bolts overall and then 2 where the main radiator hose goes. are those specs for the 5.4 ( i don't even think that would make a difference) Oh an can you verify ft in? When i pulled them off they were in really tight, but 90 lb in is like 7 ft lbs. I used a breaker bar for most of em.
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Old 04-07-2004, 09:24 PM
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You're right, it's not really to the engine. What I meant are the bolts along the center part of the manifold, upper to lower manifold bolts.
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Old 04-07-2004, 09:31 PM
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Correct "lb-in" , straight from "Ford Technical Service Manual".
8 bolts - upper to lower manifold.
9 bolts to heads and 2 on thermostat.

Just checked again 4.6 and 5.4 are same.
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Old 04-07-2004, 09:32 PM
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alright, can't thank ya enough, i appreciate it.
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