TM 9-2815-225-34&P
3-35. CYLINDER HEAD AND VALVE REPAIR (Contd)
LOCATION/ITEM
ACTION
REMARKS
c. Inspection and Repair (Contd)
18.
Two injector
(2) Using gauge block (46),
Use this measurement to
sleeves (7) (Contd)
measure protrusion of injector
determine amount that must be
assembly (43) tip.
cut from sleeve. The protrusion
of injector tip must be 0.060-
0.070 in. (1.524-1.778 mm).
(3) Remove two screws (45), injector
clamp (44), and injector assembly
(43) from injector sleeve (7).
(4) Install cutter (55) and pilot
Use injector seat cutter (ST-884)
(49) on drill press and cut
(55). Ensure enough cutting oil
injector sleeve (7).
is used to allow cutter (55) to cut
freely without grabbing. When
proper cut depth is reached, allow
cutter (55) to turn in position for
about 10 seconds to ensure a
smooth seat.
(5) Check injector (43) seating.
Refer to step 18b pattern.
(6) Check protrusion of
Refer to step 18c.
injector assembly (43) tip.
19.
Eight valve springs (4)
a. Inspect for distortion, cracks,
Discard valve spring (4) if
breaks, and collapsed coils.
damaged.
b. Using tester (56), compress to
Use valve spring tester
working length of 1.724 in.
(3375182) (56).
(4.379 cm).
c. Record amount of force required
Discard if less than wear limit
to compress valve spring (4).
shown below.
Wear Limit ...................................................................... 143.00 lb (64.92 kg)
New Minimum ................................................................. 147.25 lb (66.85 kg)
New Maximum ................................................................ 162.75 lb (73.89 kg)
3-136
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