Detroit Diesel MBE 4000 Service Manual page 262

2.3 FUEL INJECTOR LINE
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Do not crimp or nick the injector line tubing. Overbending
the tubing can close the passage or restrict the flow of fuel.
Nicks can cause weak spots that could lead to injector line
failure.
To avoid injury from the sudden release of a high-pressure
hose connection, wear a face shield or goggles.
5. Carefully remove the injector line from the engine.
2.3.2 Fuel Injector Line Installation
Install the fuel injector line as follows:
New injector lines are supplied ready for installation. If
the flared cone ends of the line do not line up with the
transfer-tube and unit-pump fittings, carefully bend the line
by hand for a proper fit. Never use pliers or sharp-edged
tools to bend injector lines.
them.
transfer-tube and unit-pump fittings.
NOTE:
A torque wrench is designed to a apply a specified torque directly on the fastener. When
using a torque wrench with an adaptor, the final torque on the fastener will be greater
than the number you set on the wrench itself.
1. Before installing the injector line, tighten the thrust bolt, using the thrust bolt torque
wrench adaptor, (J 45063). The final torque on the bolt must be 45 N·m (33 lb·ft ).
[a] Attach the adaptor to the torque wrench drive.
[b] The amount of torque you need to apply depends on the length of your torque wrench.
Examples: For a 12-inch torque wrench, tighten 40 N·m (30 lb·ft).
For a 24-inch torque wrench, tighten 36 N·m (27 lb·ft).
2. Install the injector line nuts finger-tight at both ends.
3. Using the injector line torque wrench adaptor, (J 45062), tighten the injector line nuts at the
transfer tube and at the unit pump. The final torque on the bolt must be 30 N·m (22 lb·ft).
2-16
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NOTICE:
PERSONAL INJURY
NOTICE:
Injector lines should fit without tension over the
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Doing so could damage
6SE412 0403 Copyright © 2004 DETROIT DIESEL CORPORATION
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All information subject to change without notice.
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