TM 5-3805-280-24-2
Fuel System
REPAIR IN-LINE FUEL INJECTION PUMP
35
51
IMPORTANT: Do not disassemble fuel injection pump
further than necessary for installing
available service parts, not even for
cleaning.
Be sure that injection pump serial
number tag is in place and that all
identification numbers are legible so
that pump is set to the correct
specifications for its intended use.
A--Timing Pin
NOTE: Remove JDG886 Injection Pump Timing Pin (A)
when sending an injection pump out for repair.
For injection pump repair and testing, have an authorized
diesel injection repair station perform the work.
Unauthorized repairs made to the injection pump will void
warranty.
RG,35,JW7601
1920NOV971/1
INSTALL IN-LINE FUEL INJECTION PUMP
NOTE: To eleminate any backlash that might exist in the
timing gear train, rotate flywheel in the direction of
normal engine rotation (counterclockwise viewed
from flywheel end) when installing JDE81-4
Timing Pin.
1. If engine was rotated after injection pump was
removed, rotate flywheel in the direction of normal
engine rotation until JDE81-4 Timing Pin (A) enters
flywheel at No. 1 cylinder's "TDC" compression stroke.
A--Timing Pin
NOTE: When No. 1 cylinder is at "TDC" compression
stroke, intake and exhaust valves for No. 1
cylinder will be closed and both rocker arms will
be loose.
Continued on next page
RG,35,JW7600
1920NOV971/6
13-430
