ARMY TM 9-6115-670-14&P
5-111
d. Read compression pressure and stop engine. Compression pressure should read between 412
and 469 psi (2.84 and 3.24 MPa).
e. Repeat steps a - d to ensure an accurate reading.
f. Test remaining cylinders repeating steps a - d.
Figure 5-25. Diesel Engine (Sheet 1 of 11)
NOTE
The lowest allowable limit is 327 psi (2.26 MPa). If
compression pressure is below allowable limit, test the
cylinder (para 6.30.), piston ring (para 6.24.), valve
clearance (para 5.37.), valves (para 6.7.), and cylinder
head (para 6.5.).
NOTE
Variance between cylinders should be under 10%.
NOTE
If conditions are not met, refer to next higher level of
maintenance.
