TM 9-2815-205-34
4-5. CYLINDER COMPRESSION TEST (Cont)
j.
k.
l.
Loosen locknut (12) and back out adjusting
screw (13) on control tube lever (14). Slide
injector control lever on injector control tube
(15) away from injector control rack (16).
Remove bolt (17), convex washer (18), clamp
(19), and injector (20) in cylinder head.
CAUTION
Injector clamp must not inter-
fere with follower spring or
exhaust valve springs when
installed, Damage could occur
to engine valve or injector
clamp.
Install cylinder adapter (21), clamp (19),
convex washer (18), and bolt (17) in injector
tube. Torque bolt to 20-25 lb-ft (27-34 N-m).
Connect cylinder tester (22) to adapter.
CAUTION
Exhaust valve bridges must
rest on ends of exhaust valves
when tightening rocker arm
shaft bolts or damage to
exhaust valves will result.
m. Position rocker arms (10) over pressure gage and adapter (21), and exhaust valves. Install two
rocker arm shaft bolts (8) and torque to 50-55 Ib-ft (68-75 N-m).
NOTE
.
Do not crank engine using starter motor to obtain compression pressure. Engine must
be running to obtain accurate reading.
. Variation in compression pressures between cylinders must not exceed 25 PSI (172
kPa) at 600 RPM.
. Use spare fuel tube to fabricate a jumper connection between fuel inlet and fuel return
manifold connectors. Do not install fuel tubes on engine after bending for fabrication.
n. Install spare fuel tube (23) between inlet manifold (24) and return manifold (25).
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