Fuel Jumper Line Maintenance And Reuse - Detroit Diesel 92 Series Service Manual

FUEL JUMPER LINE MAINTENANCE AND REUSE
Maintain fuel jumper lines as follows:
NOTICE:
To avoid severe engine damage resulting from fuel oil leaking
into the lubricating oil, follow proper procedures when removing,
handling, and installing fuel jumper lines (fuel pipes).
NOTICE:
The fuel jumper lines that carry fuel to and from the fuel injectors
must be handled and installed very carefully to prevent line
damage that can result in severe engine damage.
A
CAUTION:
Severe fuel leaks, if not detected, can over-fill the crankcase
(oil pan) which can cause an abnormal amount of fuel
and lubricating oil vapor to escape from the engine and
crankcase breathers. An abnormal concentration of
fuel and lube oil vapors is flammable and could ignite
in a closed engine compartment.
The following are some of the conditions that can result in fuel jumper line leaks:
I. Improper handling and storage of jumper lines when servicing the engine can result
in physical damage and contamination.
2. Careless use of socket
J
8932-B during removal or installation can cause a jumper line
to bend and permanently distort.
3. Reuse of a bent or distorted jumper line can result in excessive stress and cause the line to
crack or fracture at or above the flared ends of the jumper line, resulting in a fuel leak.
4. Excessive tightening of the jumper line nut will distort and fracture the flared end of
the jumper line, resulting in a fuel leak.
2-486
AN inbrmtnion subjsct to changB without
notics.
6SE379 9909 Copyright© 1999 DETROIT DIESEL CORPORATION
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