Torque specs for a 2003 f 150 4.2 L.
first pass 53 lb-in, second pass 89 lb-in
lower plenum
upper plenum
Two passes ,start in middle and just nip each bolt working outwards left to right ,then a then a pull with the 3/8th drive rachet till they feel right ,about 15lbs but i never use a torque wrench ,too lazy to go to the stores and book it out with all the paperwork and wait in the queue
SOURCE: I need the torque specs.
not listed in my alldata book sorry ,american ford not europeon
cast iron heads will be about 80lbs ,start in the middle and work you way out left then right and so on and it will be right ,pull first with a rachet then a nice bar and it will be right ,sorry but as i do it every day i never a use a torque wrench ,the inlet manifold bolts just pull up with a rachet but i would imagine around the 22/25 lbs as its a ally manifold ,throttle body ? just nip it up a little .Like the name and thats no doubt what your calling me but in all honesty i just pull them up with two passes ,first the rachet and then the snap on 80cm bar the last pull iam feeling for the stretch of the bolt is the only way i can describe it ,never had a gasket fail afterwards and never had to re torque the the head either ,Do they do this on the assembly line?' yes they do i know because i have got the job of torquing more than enough when i worked in fords on the assembly line ,Fine tolerances ?' so long as it fits with a bit of help from a 2lb club hammer and it will run for ever .Too be truthful i recomend a ford to anyone as other manufacturers are all the same as well
Hi the torque spec for this fuel rail/manifold is 9-11lb/ft. Here is pic of the sequence.
Fig. Intake manifold bolt torque sequence 2.7L engine
Upper intake manifold with a new gasket on the lower intake
manifold and torque the bolts, in sequence, to: 105 inch lbs. (12 Nm)
Hope helps (remember to rate this answer). Good job.
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