Workshop Manual

2–10 MAINTENANCE

Checking Procedure

1. Align the crankshaft pulley TDC mark with the

pointer.

Remove the inspection hole cover at the front of the

injection pump on the timing gear case cover.

Check the alignment between the pointer 4 on the

injection pump gear nut lock plate and the projec-

tion area mark 3 on the injection pump gear case.

If it is in misalignment, recheck with turning the

crankshaft pulley one more turn to repeat the afore-

going procedure to mark sure that it is in alignment.

Check the alignment of the notched lines 1 and 2.

(These notched lines were aligned at the factory to

set the injection pump body and the mounting

flange.)

Next, inspect the crankangle position of the injection

starting.

2. Reversely turn the crankshaft pulley counterclock-

wise about 30° crankangle.

3. Disconnect the injection pipe from the No. 1

plunger.

This will allow you to visually check the full injection

starting flow at No. 1 plunger.

4. Remove the delivery valve holder 1, the valve seat

2, valve spring 3 the delivery valve 4 from the No.

1 plunger.

5. Reinstall the delivery holder 1 and tighten it to the

specified torque.

Do not reinstall the delivery valve spring, the valve

seat and the delivery valve.

These parts will be reinstalled later.