Service Manual

ISB, ISBe and QSB (Common Rail [...] Fuel Rail
Section 6 - Injectors and Fuel Lines - Group 06 Page 6-93
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CAUTION
Injector supply lines and the high-pressure supply
line must be torqued prior to tightening the fuel rail
cap screws.
Install the injector supply line(s) that connect the fuel rail
to the fuel injectors. Refer to Procedure 006-051 in
Section 6.
NOTE: If the fuel filter head bracket capscrews were
loosened during removal of the fuel rail, tighten the fuel
filter head bracket capscrews. Be sure that the fuel filter
head bracket is not in contact with the high-pressure
supply line connecting the high-pressure fuel pump to the
fuel rail. Refer to Procedure 006-017 in Section 6, for the
fuel filter head bracket.
Tighten the fuel rail capscrews.
Torque Value: 24 N•m [ 212 in-lb ]
Install the fuel rail pressure sensor, if applicable.
Torque Value: 70 N•m [ 52 ft-lb ]
Connect the fuel pressure sensor connector.
NOTE: The fuel rail pressure relief valve drain line has
either a banjo fitting or a quick-disconnect fitting. Be sure
that the quick disconnect is locked in place, if applicable.
NOTE: Overtightening the fuel pressure relief valve can
result in a leak.
Install the fuel pressure relief valve and tighten, if
applicable.
Torque Value: 100 N•m [ 74 ft-lb ]
Connect the fuel rail pressure relief valve drain line. Refer
to Procedure 006-013 in Section 6.