Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2012E 450 V8-5.4LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECRANKSHAFT MAIN BEARING
2012 Ford E 450 V8-5.4L
Crankshaft Main Bearing
2012 Ford E 450 V8-5.4LSECTION Crankshaft Main Bearing
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.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.