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TM 9-2320-360-34-1
Refer to paragraph 3-27 for
specifications and engine tune-
up procedure.
Refer to para 3-28 for engine
compression test procedure.
CYLINDER LEAKDOWN TEST
(1) Remove engine exhaust tubes (TM 9-2320-360-20).
(2) Remove engine air box cover(s) from cylinder(s) with
low compression identified in step 13 (para 3-8).
(3) Remove fuel injector(s) from cylinder(s) with low
compression identified in step 13 (para 4-2).
(4) Install gage adapter in injector tube with clamp and
screw. Torque screw to 240-300 lb-in. (27-34 Nm).
(5) Rotate crankshaft by turning camshaft pulley clockwise
until center injector pushrod is at its highest point.
(6) Apply air pressure source to gage adapter.
(7) Listen for air leakage from exhaust manifold and air box
areas.
(8) Remove screw, clamp and gage adapter from cylinder
head.
(9) Install fuel injector(s) (para 4-2).
(10) lnstall air box cover(s) (para 3-8).
(11) Install engine exhaust tubes (TM 9-2320-360-20).
Change 1 2-71.6
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