High-Pressure Fuel Pump: Installation
WARNING: This page is about a different variant/trim than selected.
- The cam lobe for the high-pressure fuel pump must be at BDC for the high-pressure fuel pump installation.
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NOTE: Only rotate the crankshaft Clockwise (CW) or damage to the engine may occur.
Using the crankshaft pulley bolt, turn the crankshaft until the high-pressure fuel pump cam lobe is at BDC.
- Apply clean engine oil to the high-pressure fuel pump drive unit bore and the drive lobe and the roller tappet. Install the high-pressure fuel pump tappet.
Material: Engine Oil - SAE 5W-20 - Synthetic Blend Motor Oil / XO-5W20-Q1SP (WSS-M2C945-B1)
- Install a new high-pressure fuel pump O-ring seal. Lubricate with clean engine oil.
Material: Engine Oil - SAE 5W-20 - Synthetic Blend Motor Oil / XO-5W20-Q1SP (WSS-M2C945-B1)
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NOTE: Make sure that 2 new high-pressure fuel pump mounting bolts are installed.
Install the high-pressure fuel pump and loosely install the high-pressure fuel pump bolts, alternately tighten each bolt 90 °. at a time in turn until the torque is achieved.
Torque: 80 lb.in (9 Nm)
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NOTE: Only tighten the 2 high pressure fuel tube flare nuts finger tight at this stage.NOTE: Make sure that a new high pressure fuel tube is installed.NOTE: Calculate the correct torque wrench setting for the following torque using the Torque Wrench Adapter Formulas in the chart below.
Tighten the high-pressure fuel tube flare nuts in the following 3 stages.
Torque: Stage 1: 15 lb.ft (21 Nm) - Stage 2: Wait 5min - Stage 3: 15 lb.ft (21 Nm)
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- Connect the high-pressure fuel pump fuel feed tube spring lock coupling. Refer to: Spring Lock Couplings .
- Connect the high-pressure fuel pump electrical connector.
- Connect the battery. Refer to: Battery Disconnect and Connect .
- Pressurize the fuel system. Refer to: Fuel System Pressure Release .