High-Pressure Fuel Pump Drive Unit: Installation
NOTE:
Make sure that the mating faces are clean and free of foreign material.
NOTE:
During the removal or installation of components, cap, tape or otherwise appropriately protect all openings and tubes/fittings to prevent the ingress of dirt or other contamination. Remove caps, tape and other protective materials prior to installation.
- Inspect, clean or replace the high-pressure fuel pump drive unit gasket as needed.
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NOTE: The high-pressure fuel pump drive unit must be installed within 10 minutes of applying the sealer and the studbolts must be installed and tightened.
Apply 8 mm dots of sealant to the camshaft bearing cap and cylinder head seam as shown below.
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 and 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: 177 lb.in (20 Nm)
Stage 2: 45 °
- Attach the wiring harness retainers to the high-pressure fuel pump drive unit studbolts.
- Connect the front cooling system hose quick connect coupling and then remove the hose clamps. Refer to: Quick Release Coupling
. Use the General Equipment: Hose Clamp(s)
- Fill the cooling system. Refer to: Cooling System Draining, Vacuum Filling and Bleeding .
- Install the high-pressure fuel pump. Refer to: High-Pressure Fuel Pump .