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SUBJECT
DATE
Removal of the High Pressure Fuel Injector Lines
May 2012
Additions, Revisions, or Updates
Publication Number / Title
DDC-SVC-MAN-0082
Platform
EPA07/10
DD Platform
Section Title
Change
Removal of the High
Pressure Fuel Injector
Lines
Updating procedure to remove injector seal with injector fuel line.
Installation of the High
Pressure Fuel Injector
Lines
All information subject to change without notice.
5 10-12
Copyright © 2012 DETROIT DIESEL CORPORATION
3
2 Removal of the High Pressure Fuel Injector Lines
2
Removal of the High Pressure Fuel Injector Lines
Remove as follows:
NOTICE: For DD15/16 engines: If removing the high pressure fuel line from fuel injector number one, remove the
intake manifold temperature sensor. Refer to section "Removal of the Intake Manifold Air Temperature Sensor" .
NOTICE: For DD13 engines: If removing the high pressure fuel line from the fuel injector number four, remove the
intake manifold temperature sensor. Refer to section "Removal of the Intake Manifold Air Temperature Sensor" .
NOTICE: If removing the high pressure fuel line from fuel injector number six, remove the pressure limiting valve
return line banjo bolt and the rear high pressure fuel feed line P-clip.
NOTICE: The high pressure fuel rail feed lines, vibration dampers, mounting bracket and hardware are one-time
use components and MUST be replaced any time they are removed.
NOTICE: Service kit P/N: A4720707132 contains all of the necessary parts to replace the high pressure fuel feed
lines on EPA07/10 DD13 engines and service kit P/N: 4720707032 contains all of the necessary parts to replace
the high pressure fuel feed lines on EPA07/10 DD15/16 engines.
1. Remove the two fuel injector seal mounting bolts (1) securing the fuel injector seal to the camshaft housing.
2. Loosen the fuel line nut (1) at the fuel rail.
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All information subject to change without notice.
Copyright © 2012 DETROIT DIESEL CORPORATION
5 10-12
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3. Loosen the fuel injector feed line nut (1) at the camshaft housing.
NOTE: The fuel injector feed seal is a single-use item and cannot be re-used.
4. Remove the fuel injector feed line and fuel injector seal as an assembly from the engine.
5. Remove and discard the injector seal from the fuel injector feed line.
All information subject to change without notice.
5 10-12
Copyright © 2012 DETROIT DIESEL CORPORATION
5
3 Installation of the High Pressure Fuel Injector Lines
3
Installation of the High Pressure Fuel Injector Lines
Install as follows:
NOTICE: For DD15/16 engines: If the high pressure fuel line from fuel injector number one, was removed, reinstall
the intake manifold temperature sensor. Refer to section "Installation of the Intake Manifold Air Temperature Sensor" .
NOTICE: For DD13 engines: If the high pressure fuel line from fuel injector number one, was removed, reinstall the
intake manifold temperature sensor. Refer to section "Installation of the Intake Manifold Air Temperature Sensor" .
NOTICE: If the high pressure fuel line from fuel injector number six was removed, install the pressure limiting valve
return line banjo bolt and a high pressure fuel feed line service kit.
NOTICE: The high pressure fuel rail feed lines, vibration dampers, mounting bracket and hardware are one-time
use components and MUST be replaced any time they are removed.
NOTICE: Service kit P/N: A4720707132 contains all of the necessary parts to replace the high pressure fuel feed
lines on EPA07/10 DD13 engines and service kit P/N: 4720707032 contains all of the necessary parts to replace
the high pressure fuel feed lines on EPA07/10 DD15/16 engines.
NOTE: The fuel injector feed seal is a single-use item and cannot be re-used.
1. Install the new fuel injector seal on to the fuel injector feed line.
2. Install the fuel injector feed line and the new fuel injector seal as an assembly onto the engine. Tighten fuel injector feed
line nut (1) hand tight.
3. Tighten the fuel line nut to the fuel rail. Torque to 40 N·m (30 lb·ft).
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All information subject to change without notice.
Copyright © 2012 DETROIT DIESEL CORPORATION
5 10-12
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4. Using tool J-48770, torque the fuel injector feed line nut (1) to 40 N·m (30 lb·ft).
5. Install two fuel injector seal mounting bolts (1). Torque to 15 N·m (11 lb·ft).
All information subject to change without notice.
5 10-12
Copyright © 2012 DETROIT DIESEL CORPORATION
7
3 Installation of the High Pressure Fuel Injector Lines
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All information subject to change without notice.
Copyright © 2012 DETROIT DIESEL CORPORATION
5 10-12

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