TM 5-3895-369-14
ENGINE COMPRESSION TEST
(1) Close fuel shutoff valve (para 2-17).
(2) Power up STU/ICE-R to vehicle battery
source (TM 9-4910-571-12&P, in
TK mode.
(3) Perform STWE/ICE-R pressure test #50
on each cylinder.
(4) Engine compression should be 350
psi (2413 kPa) at 250 RPM cranking
speed.
(a) A 100 psi (1007 kPa) difference
between cylinders Indicates a
compression seal problem.
Replace piston rings (para 5-22).
(b) If engine passes compression
test, notify supervisor.
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