Crankshaft Main Bearing

5.4L (Hydraulic Valve Adjuster / Camshaft / Cylinder Block / Crankshaft / Piston And Connecting Rod):

a Time required for the plunger to leak down 1.6 mm of travel with 222 N force and leak-down fluid in the lash adjuster.

b Full indicator measurement on all journals when supported on front and rear journals (4 places).

MAIN BEARING CAP

Tighten the 10 vertical main bearing cap fasteners in the sequence shown, in 2 stages:
Stage 1: Tighten to 40 Nm (30 lb-ft).
Stage 2: Tighten an additional 90 degrees.






Install the 10 side bolts and tighten them in 2 stages, in the sequence shown.
Stage 1: Tighten to 30 Nm (22 lb-ft).
Stage 2: Tighten an additional 90 degrees