TM 9--2815--247--34
0013 00--3
CYLINDER COMPRESSION CHECK -- CONTINUED
0013 00
Test -- Continued
2. Install compression adapter (2) into fuel injector nozzle holder opening and tighten securely.
3. Install tester (3) on compression adapter (2) and tighten securely.
4. Crank engine several seconds, or until the compression gauge reaches maximum reading. Cylinder compression
must be within 330 to 480 psi (2,275.3--3,336 kpa) at engine cranking speed. Depress gauge vent valve (4) to
release pressure and reset gauge to zero after compression reading is taken. Test compression on all cylinders in
the same manner.
Figure 71
2
3
4
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