CTM188 - PowerTech™ 10.5 L and 12.5 L Diesel Engines Level 6 Electronic
Fuel Systems With Lucas EUIs
Remove and Install High Pressure Regulating Valve
Remove and Install High Pressure Regulating Valve
RG11168-UN: High Pressure Regulating Valve
LEGEND:
A - Screen
B - O-Ring
C - High Pressure Regulating Valve
D - O-Ring
E - O-Ring
F - Fuel Temperature Sensor
1. Close fuel shut-off valve, if equipped.
2.
NOTE:
On high fuel tank applications without fuel shut-off valve, fuel tank return line must be pinched
before disconnecting, then plugged,
Disconnect fuel tank return line from filter housing and drain fuel into clean container.
3. Open valve on water separator bowl and drain filter housing.
4. Remove fuel temperature sensor (F). See REMOVE AND INSTALL FUEL TEMPERATURE SENSOR in Group 110.
5. Remove high pressure regulating valve (C).
6. To remove screen (A), see REMOVE AND INSTALL 100 MICRON INTERNAL FILTER HOUSING SCREEN INSERT
next in this Group.
7.
NOTE:
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High pressure regulating valve is not repairable. Do not disassemble valve. If defective, replace
entire assembly.
Clean and inspect all parts. Replace all O-rings.
8.
Install parts in reverse order.
If removed, install screen (A). See REMOVE AND INSTALL 100 MICRON INTERNAL FILTER HOUSING SCREEN
INSERT next in this Group.
Tighten regulating valve to specifications.
9.
Install fuel temperature sensor (F). See REMOVE AND INSTALL FUEL TEMPERATURE SENSOR in Group 110.
10. Add fuel to filter housing between minimum and maximum marks on housing. Fuel can be added by throttling the fuel
shut-off valve (if equipped), or by removing cover and adding fuel from a clean container.
Item
Measurement
Specification
High Pressure Regulating Valve-to-
Filter Housing
Torque
14 N·m (124 lb-in.)
DPSG,OUO1004,1014-19-20150709
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CTM188 - PowerTech™ 10.5 L and 12.5 L Diesel Engines Level 6 Electronic
F