Service Manual

ISB, ISBe and QSB (Common Rail [...] Lubricating Oil Pressure Regulator (Main Rifle)
Section 7 - Lubricating Oil System - Group 07 Page 7-29
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Measure the pressure regulator spring at the following
heights.
Pressure Regulator Spring Pressure
N lb
@41.25 mm [1.624 in] 127 MIN 29
@44.50 mm [1.752 in] 109 MIN 25
NOTE: When the load is 105 N [24 lb], the regulator valve
opens. When the load is 142 N [32 lb], the regulator valve
is seated.
Install
Install a new sealing o-ring on the valve plug and lubricate
with clean 15W-40 engine oil.
Assemble the plunger, spring, and valve plug.
Install the pressure regulator assembly and tighten.
Torque Value: 80 N•m [ 59 ft-lb ]
Finishing Steps
WARNING
Batteries can emit explosive gases. To reduce the
possibility of personal injury, always ventilate the
compartment before servicing the batteries. To
reduce the possibility of arcing, remove the negative
(-) battery cable first and attach the negative (-)
battery cable last.
Connect the batteries.
Operate the engine and check for leaks.