drill marks on the teeth are visible. Hold the rack in this position.
d. Place gear (22) in the injector body so that the marked tooth on the gear is engaged between the two marked
teeth on the rack.
Place gear retainer (21) on top of the gear. Then align guide pin (16) in bushing (20) with the slot in the
injector body. Slide the end of bushing (20) into position.
With the injector body in the same position, place a new seal ring (19) on the shoulder of the body. Then slide
spill deflector (18) over the barrel of the bushing.
Place valve seat (17) on the end of the bushing. Insert the stem of valve (15) in one end of valve spring (14)
and valve stop (13) in the other end of the valve. Lower valve cage (12) over this assembly so that the valve stop (13)
seats in the cage. Place the valve cage assembly on the valve seat.
Locate check valve (11) centered on the cage and place spray tip (10) over the check valve and against the
Lubricate the threads of injector nut (9) and carefully thread the nut on the injector body by hand. Rotate the
spray tip with the fingers while threading the nut on the body. Tighten the nut as fight as possible by hand. There should be
sufficient force on the spray tip t(, make it impossible to rotate the tip by hand. Then tighten the injector nut to 55--5 ft-lb
(7--88 N. n).
Do not exceed the specified torque or the nut may stretch.
Install dowel pin (24) into the injector body.
Hold the injector right side up and push the rack all the way in. Then place spring (8) into position.
Place stop pin (5) on the injector body so that the tighter wound end of spring (8) rests on the narrow flange of
the stop pin.
m. Align the slot in follower (6) with the stop pin in the injector body. Next, align the flat side of plunger (7) with
the slot in the follower. Then insert the free end of the plunger in the injector body. Press down on the follower and at the
same time press the stop pin (5) into position.
n. Check the spray tip concentricity. If the total run out exceeds 0.008 inch, loosen the injector nut, center the
spray tip, and tighten the nut to 55--55 ft-lb (7- 88 N * m). If, after several attempts, the spray tip can-not be positioned
properly, replace the injector nut.
Refer to figure 3-13. Be sure the injector is filled with fuel oil. Insert the injector into the injector tube with the
dowel located in the locating hole in the cylinder head.
Slide the rack control lever over so that it registers with the injector rack.
Install the injector clamp, special washer and bolt. Tighten the bolt to 20--25 ft-lb (2734 N- m). Be sure that
the damp does not interfere with the injector follower spring or the exhaust valve springs. Check the injector control rack
for free movement.
Move the rocker arm assembly into position and secure the rocker arm brackets to the cylinder head.
e. Be sure the exhaust valve bridges are installed properly, as discussed in paragraph 4-9.
Install the fuel lines.