CYLINDER COMPRESSION TEST

TESTS AND ADJUSTMENTS (CONTINUED)

M Attach breather hose at rocker arm cover.

K Repeat steps H and I for no. 2 cylinder.

N Install shroud door panel (p 3-7).

Install rocker arm cover and lifting bracket (p 3-34).

CYLINDER COMPRESSION TEST

NOTE

Best indication of compression leakage is

Use cylinder compression test to determine con-

pressure difference between cylinders.

dition of valves, pistons, piston rings and

sion of new engine turning at about 300 rpm is

cylinders.

approximately 350-400 psi.

A Run engine until thoroughly warm.

E Crank engine and note compression reading.

B Remove panels and shrouds as necessary to allow access to

Remove gage from no. 1 cyliider and insert in no. 2

fuel injector nozzles and holder assemblies.

cylinder.

C Remove fuel injector nozzles and holder assemblies (p 3-22).

G Repeat step E.

D Insert compression gage into no. 1 cylinder nozzle and

H Install fuel injector nozzles and holder assemblies (p 3-28).

holder assembly cylinder head opening.

Install panels and shrouds removed in step B.