ADJUST TIMING BY TIMING PIN METHOD - CONTINUED

TM 5-2410-237-23

FUEL INJECTION PUMP AND GOVERNOR TIMING AND ADJUSTMENT - CONTINUED

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ADJUST TIMING BY TIMING PIN METHOD - CONTINUED

Rotate engine flywheel (as seen from rear of engine) slowly to the left, until timing pin goes in notch of injector pump

camshaft.

Try to insert a 3/8 in.-16NC bolt in timing hole in flywheel housing.

If timing bolt can be installed in hole of flywheel, timing of fuel injection pump is correct. Proceed to step 8.

If timing bolt cannot be installed in hole of flywheel, timing of fuel injection pump is not correct. Perform the fol-

lowing steps to adjust timing:

(1)

Remove six nuts (4), washers (5), pump

drive gear cover (6) and gasket (7) from

4,5

timing gear housing. Discard gasket.

(2)

Loosen capscrew (8) that holds drive

gear (9) to fuel pump camshaft. Turn

capscrew out three turns to the left.

(3)

Install gear puller and loosen drive gear

(9) from fuel pump camshaft.

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(4)

Rotate engine 60 degrees to the right to put no. 1 piston at top dead center.

(5)

Tighten capscrew (8) finger-tight. Ensure timing pin is in groove of fuel pump camshaft.

(6)

Slowly rotate engine to the left until timing bolt can be installed in flywheel.

(7)

Install torque wrench adapter on drive gear (9). Use two 3/8 in.-24NF bolts, 1 in. (25.4 mm) long, to secure

adapter to puller holes in gear.

(8)

Hold torque of 45-50 lb-ft (61-68 Nm) on torque wrench adapter in a rotation to the right, and tighten cap-

screw (9) to 200 lb-ft (271 Nm).

(9)

Remove timing bolt from flywheel. Remove timing pin from fuel pump camshaft.

(10)

Rotate engine two revolutions to the left. If timing bolt can be installed in flywheel and timing pin can be

installed in fuel pump camshaft, timing is correct. Continue with step 8.

(11)

If either timing pin or timing bolt cannot be installed, repeat steps 1-10.

Remove 3/8 in.-16NC bolt from timing hole in flywheel housing and install plug.

Remove timing pin. Install new gasket (3) and timing cover (2) to side of fuel injection pump housing with four bolts

(1).

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