ENGINE, TURBO, DIESEL TESTS
THIS WORK PACKAGE COVERS
Cylinder Compression Test
Tools and Special Tools
Shop equipment, general purpose (Item 30, WP
Simplified test equipment, (STE/ICE-R) (Item
CYLINDER COMPRESSION TEST
Cylinder compression test is used to compare each cylinder of engine.
Document each individual cylinder test result as test is performed on each cylinder.
Install compression gage into injector hole (1).
When performing compression test, one or
more cylinders vary more than 51 psi (350
kPa), cylinder and related components
may need repair.
Operate starter motor and crank engine until the maxi-
mum pressure is indicated on the compression gauge.
Repeat steps 1 and 2 for all cylinders.
END OF WORK PACKAGE