Fuel Pump Installation (LF1, LFW or LFX)
|
Fuel Pump Installation (LF1, LFW or LFX)
|
Special Tools
EN 48896
High Pressure Fuel Pump Installation Alignment Gauge
For equivalent regional tools, refer to
Special Tools
.
1.
|
Note
|
The camshaft must be in the base circle position before the high pressure fuel pump is installed.
|
Use the
EN-48896
alignment gauge (2) to ensure that the camshaft lobe is in the base circle position. At base circle position, the tool will be flush with the head (1).
|
2.
|
Lubricate the high pressure fuel pump cylinder head bore with 5W30 engine oil.
|
3.
|
Note
|
Ensure that the high pressure fuel pump roller lifter is oriented properly, the camshaft is at base circle and the number 1 piston is at top dead center (TDC) on the exhaust stroke.
|
Lubricate the high pressure fuel pump roller lifter with 5W30 engine oil and install into the cylinder head bore.
|
4.
|
Install a NEW high pressure fuel pressure fuel pump gasket (4).
|
5.
|
Install a NEW high pressure fuel pump O-ring (5).
|
6.
|
Note
|
Ensure the plastic bolt retainers are installed in the high pressure fuel pump mounting holes before installing.
|
Install the valve lifter follower (3).
|
7.
|
Install the high pressure fuel pump (2).
|
8.
|
Refer to
Fastener Caution
.
Warning
|
Alternately hand-tighten the fuel pump bolts one turn at a time until the pump is fully seated. Trying to draw down the pump without even side-to-side tightening may result in pump plunger damage.
|
|
|
|
|
Start and hand-tighten the NEW high pressure fuel pump bolts (1) evenly and tighten the high pressure fuel pump bolts to
15 Nm (11 lb ft)
.
|
9.
|
Note
|
•
|
DO NOT reuse the high pressure fuel rail crossover pipe.
|
•
|
The tightening order and torque are critical to proper fuel system fit and function. Be sure to follow installation and tightening steps exactly.
|
Install the NEW high pressure LH to RH fuel rail crossover pipe by starting all three fuel crossover pipe fitting nuts (1), (2) and (3) to finger-tight only.
|
10.
|
Tighten the fuel rail crossover pipe fittings to
30 Nm (22 lb ft)
in the following order: (1) Left Fuel Rail, (2) Right Fuel Rail, then (3) Fuel Pump.
|
11.
|
Install the NEW fuel feed pipe (2) by installing the fuel line nut to the fuel pump finger-tight.
|
12.
|
Install the right fuel feed pipe bolt finger tight (3).
|
13.
|
Install the left fuel feed pipe bolt finger tight (1).
|
14.
|
Tighten the left fuel feed pipe bolt (1) to
10 Nm (89 lb in)
.
|
15.
|
Tighten the right fuel feed pipe bolt (3) to
10 Nm (89 lb in)
.
|
16.
|
Tighten the fuel feed pipe coupling's nut to
30 Nm (22 lb ft)
.
|
17.
|
Install the fuel rail wiring connectors to the fuel feed pipe bracket.
|
18.
|
Install the fuel rail noise shield (1).
|