TM 9-2320-260-34-1
3-79. INJECTOR SLEEVE MAINTENANCE (Contd)
e. Check and Test
1. Coat injector cup (8) with prussian blue.
NOTE
Top stop injectors do not have washer between injector and
retaining clamp.
2. Install injector (5) in injector bore (4) of cylinder head (3) with washer (6), retaining clamp (1), and
in 4 lb-ft (5
steps.
two screws (2). Alternately tighten two screws (2) 11-12 lb-ft (15-16
3. Remove two screws (2), retaining clamp (1), washer (6), and injector (5) from cylinder head (3).
NOTE
Blue band on injector sleeve must be minimum of 0.060 in.
(1.52 mm) wide and located approximately 0.469 in. (11.91 mm)
from bottom of cylinder head surface.
4. Inspect location and width of blue band on injector sleeve (7) in injector bore (4). If blue band does
not meet specifications, regrind injector sleeve (7) seating area (subtask d).
5. Install injector (5) in injector bore (4) of cylinder head (3) with washer (6), retaining clamp (1), and
in 4 lb-ft. (5
steps.
two screws (2). Alternately tighten two screws (2) 11-12 lb-ft (15-16
NOTE
Proper injector tip protrusion is 0.060 -0.070 in, (1.52-1.78 mm).
6. Check injector tip (9) protrusion.
a. Install gage block on cylinder head (3).
b. If injector tip (9) protrusion exceeds 0.070 in. (1.78 mm), install new injector sleeve (7).
c. If injector tip (9) protrusion is less than 0.060 in. (1.52 mm), regrind injector sleeve (7)
(subtask d.).
7. Remove two screws (2), retaining clamp (1), washer (6), and injector (5) from injector bore (4).
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