2.
3.
4.
5.
6.
7.
8.
9.
10.
TM 9-2320-363-34-2
NOTE
Leaking injector tubes must be replaced. Replace any pipe plug or cup plug
where leakage is present.
Cylinder head must be pressure tested following replacement of any injector
tubes, cup plugs, or pipe plugs.
INSTALL GASKET (5) AND PRESSURE TEST KIT THERMOSTAT COVER PLATE (6) ON CYLINDER
HEAD (2) WITH BOLTS (7).
lNSTALL CYLINDER HEAD LlFTER (8), WASHER (9), AND BOLT (10).
INSTALL PRESSURE TEST KIT DUMMY FUEL INJECTORS (11) IN INJECTOR BORES.
INSTALL FUEL INJECTOR CLAMP (12), WASHER (13), AND HOLDDOWN BOLT (14), AND TIGHTEN
TO 43-49 LB-FT(58-66 N.m).
REMOVE CYLINDER HEAD (2) ASSEMBLY FROM CYLINDER HEAD (2) ADAPTER PLATE.
APPLY 30 PSI (207 kPa) AIR PRESSURE TO THERMOSTAT COVER PLATE FlTTING (15).
INSTALL PIPE PLUGS IN TEMPPORTAND IN AIR COMPRESSOR COOLANT PORT.
IMMERSE CYLINDER HEAD (2) IN WATER HEATED TO 180°-200 F (82°-930 C). LEAVE CYLINDER
HEAD (2) IN WATER FOR 20 MINUTES. WATCH FOR BUBBLES, INDICATING CRACK OR LEAK.
IF CRACKED, REPLACE CYLINDER HEAD (2).
USING HEAVY STRAsIGHTEDGE
CYLINDER HEAD (2) FIRE DECK
(16) AND FEELER GAGE (17), CHECK FOR WARPAGE OF
12-19
