TM 9-2815-220-24
CYLINDER COMPRESSION TEST
0033 00
BEFORE TEST (Continued)
3. Install compression adapter (2) into fuel injector nozzle holder opening and tighten securely.
4. Install gauge assembly (3) (item 24, WP 0176) onto compression adapter (2) and tighten
securely.
3
4
2
TEST
1. Crank engine several seconds or until compression gauge (3) reaches maximum reading.
a. Cylinder compression must be within 330 to 480 psi (2,275 to 3310 kPa) at engine
cranking speed.
2. Depress gauge vent valve (4) to release pressure and reset gauge (3) to zero after compression
reading is taken.
3. Test compression on all cylinders in the same manner.
WP 0033 00-2