Torque Specifications

Torque Specifications

Part 1 Of 4:

Part 2 Of 4:

Part 3 Of 4:

Part 4 Of 4:

Cylinder Head

NOTE: The RH cylinder head is shown; the LH cylinder head is similar.

Left Cylinder Head Torque Sequence:

Tighten the bolts in sequence in three stages.
Tighten the LH bolts in the sequence shown.
Tighten to 40 Nm (30 ft. lbs.).
Tighten additional 90 degrees.
Tighten additional 90 degrees.

Right Cylinder Head Torque Sequence:

Tighten the bolts in three stages.
Tighten the RH bolts in the sequence shown.
Tighten to 40 Nm (30 ft. lbs.).
Tighten additional 90 degrees.
Tighten additional 90 degrees.

CAUTION: The cylinder head bolts must be discarded and new bolts installed and must be lightly oiled with a rag, and allowed to drain for a few minutes prior to installation.





Intake Manifold 4.6L/5.4L
Tighten the 11 bolts in two stages in the sequence shown.
Tighten to 2 Nm (18 inch lbs.)
Tighten to 25 Nm (18 ft. lbs.)

Camshaft bearing cap bolts - 4.6L 10 Nm (89 inch lbs.)





Tighten the bolts in the sequence shown.

Camshaft bearing cap bolts - 5.4L 10 Nm (89 inch lbs.)





Tighten the bolts in the sequence shown.





Crankshaft main bearing bolts 4.6L (vertical)
Vertical main bearing cap fasteners and tighten in the sequence shown.
Tighten to 40 Nm (30 ft. lbs.).
Tighten additional 90 degrees.





Tighten the jack screws against the cylinder block in the sequence shown.
Tighten to 5 Nm (44 inch lbs.).
Tighten to 10 Nm (89 inch lbs.).





Crankshaft main bearing bolts 4.6L (cross-mounted)
Install the side bolts and tighten them in the sequence shown.





Crankshaft main bearing bolts 5.4L (cross-mounted)
Install the vertical main bearing cap fasteners and tighten in the sequence shown.
Tighten to 40 Nm (30 ft. lbs.).
Tighten additional 90 degrees.





Crankshaft main bearing bolts 5.4L (vertical)
Install the side bolts and tighten them in the sequence shown.
Tighten to 30 Nm (22 ft. lbs.).
Tighten additional 90 degrees.

Crankshaft pulley bolt in four stages.
Tighten to 90 Nm (66 ft. lbs.).
Loosen 360 degrees.
Tighten to 50 Nm (37 ft. lbs.).
Tighten additional 90 degrees.

Romeo engine (4.6L)





Flexplate bolts
Tighten 80 Nm (59 ft. lbs.)
Loosely install the bolts.
Tighten the bolts in the sequence shown.

Windsor engine (SAL 5.4L)





Flexplate bolts
Tighten 80 Nm (59 ft. lbs.)
Loosely install the bolts.
Tighten the bolts in the sequence shown.





Oil pump
Install the bolts loosely.
Tighten the bolts in the sequence shown.





Exhaust Manifold RH
Exhaust manifold nuts 25 Nm (18 ft. lbs.)

NOTE: 4.6L engine shown; 5.4L engine similar.

To install, reverse the removal procedure.
Tighten the exhaust manifold nuts in the sequence shown.





Exhaust Manifold LH
Exhaust manifold nuts 25 Nm (18 ft. lbs.)

NOTE: 4.6L is shown, 5.4L is similar.

Tighten the nuts in the sequence shown.





Coolant pump