High-Pressure Fuel Pump Drive Unit: Installation
NOTE:
Make sure that the mating faces are clean and free of foreign material.
- Inspect the high-pressure fuel pump drive unit gasket, clean and replace the gasket as needed.
- Apply 8 mm dots of sealant to the camshaft bearing cap and cylinder head seam as shown.
Material
: Motorcraft® High Performance Engine RTV Silicone / TA-357 (WSE-M4G323-A6)
- Install the high-pressure fuel pump drive unit with the high-pressure fuel pump drive unit lower studbolt, then hand tighten the studbolt.
- Install and hand tighten the upper high-pressure fuel pump drive unit studbolts.
- Tighten the high-pressure fuel pump drive unit studbolts in the following 2 stages.
Torque
: Stage 1: Tighten to: : 177 lb.in (20 Nm) Stage 2: Tighten an additional: : 45 deg.
- Attach the wiring harness retainers to the high-pressure fuel pump drive unit studbolts.
- Connect the front cooling system hose quick connect couplings, then remove the hose clamp pliers. Refer to: Quick Release Coupling
- Install the high-pressure fuel pump. Refer to: High-Pressure Fuel Pump
- Fill the cooling system. Refer to: ENGINE COOLING SYSTEM DRAINING, VACUUM FILLING AND BLEEDING