TM 5-3895-379-23
ENGINE, TURBO, DIESEL TESTS
THIS WORK PACKAGE COVERS
Cylinder Compression Test
INITIAL SETUP
Tools and Special Tools
Equipment Condition
Valve lash is set correctly (WP 0173 00)
Tool kit, general mechanic's (Item 36, WP 0220 00)
Fuel injector nozzles removed (WP 0175 00 or
Shop equipment, general purpose (Item 30, WP
0176 00)
Fuel shutoff valves in off position (WP 0028 00)
Simplified test equipment, (STE/ICE-R) (Item
Battery fully charged (WP 0103 00)
32, WP 0220 00)
CYLINDER COMPRESSION TEST
NOTE
Cylinder compression test is used to compare each cylinder of engine.
Document each individual cylinder test result as test is performed on each cylinder.
1.
Install compression gage into injector hole (1).
1
NOTE
When performing compression test, one or
more cylinders vary more than 51 psi (350
kPa), cylinder and related components
may need repair.
2.
Operate starter motor and crank engine until the maxi-
mum pressure is indicated on the compression gauge.
3.
Repeat steps 1 and 2 for all cylinders.
401-2080
END OF WORK PACKAGE
