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HAVAL 4S20 - Page 42

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Chapter VII. Supply system
ÿ Tightening torque: 8.6±0.7 Nm.
11. Installing the high pressure fuel pump
(a) Check the condition of the vacuum pump gasket.
12. Vacuum pump installation
(a) Check the O-ring for damage and replace if necessary.
(b) Install the vacuum pump and secure with 2
(a) Check if the fuel injector nozzle is clogged. Check for fuel flow
through the nozzle.
(b) Install the fuel injector to the fuel rail.
bolts.
(b) Apply a thin layer of engine oil to the surface of the actuator
cam (A) and the fuel oil O-ring.
(c) Secure the fuel injector to the fuel rail with the retainer (1).
(d) Check that the fuel injector is secure.
high pressure pump.
ÿ Tightening torque: 22±2 Nm.
Note:
(c) Install the injection pump drive cam, rotate the crankshaft, and
check that the distance between the extreme point of the cam
and the injection pump support is ÿ31.2mm.
(d) Install the high pressure fuel pump on a support
ÿ Do not dismantle the vacuum pump!
and secure with screws.
ÿ Pay attention to the length of the bolts when installing.
13. Installing fuel injectors on the fuel rail
35
Machine Translated by Google

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