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 150 V8-4.6LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECRANKSHAFT MAIN BEARING
2012 Ford E 150 V8-4.6L
Crankshaft Main Bearing
2012 Ford E 150 V8-4.6LSECTION 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 The pin bore and crank bearing bore must be parallel and in the same vertical plane within the specified total difference when measured at the ends of a 203 mm bar, 105.5 mm on each side of rod centerline.
MAIN BEARING CAP
Tighten the vertical main bearing cap bolts and the stud bolt in the sequence shown, in 2 stages.
Stage 1: Tighten to 40 Nm (30 lb-ft).
Stage 2: Tighten an additional 90 degrees.
Tighten the 10 crankshaft main bearing jackscrews against the cylinder block in the sequence shown in 2 stages.
Stage 1: Tighten to 5 Nm (44 lb-in).
Stage 2: Tighten to 10 Nm (89 lb-in).
Install the 10 side bolts and tighten them in the sequence shown.
Tighten to 21 Nm (15 lb-ft).
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.