DISASSEMBLE FUEL INJECTION NOZZLES (9L7883 Nozzles)

3208 INDUSTRIAL AND MARINE ENGINES

DISASSEMBLY AND ASSEMBLY

FUEL INJECTION NOZZLES

8. Put rocker shafts (5) and fuel return manifolds

(7) in position and install the locks and bolts.

Tighten the bolts to a torque of 18 5 lb.ft. (2.5

0.7 mkg).

9. Make adjustments until the intake valve

clearance is .01-5 in. (0.38 mm) and the

exhaust valve clearance is .025 in. (0.64 mm).

Tighten nuts (6) to a torque of 24 5 Ib.ft. (3.3

0.7 mkg).

end by:

a) install valve covers

DISASSEMBLE FUEL INJECTION NOZZLES

(9L7883 Nozzles)

15-1254

Tools Needed

8S2242

Nozzle Test Group

8S2250

Nozzle Holding Tool

5P958

Valve Retractor

start by:

a) remove fuel injection nozzles

NOTE: Do not disassemble any nozzle until testing has

shown that disassembly is needed. Check each nozzle

with tool (A) for leakage, opening pressure, and the

shape and amount of fuel(spray pattern) coming out of

the nozzle. Do not clean or make an adjustment to any

nozzle that has a large (excessive) amount of return

leakage. Excessive return leakage can be an indication

of nozzle failures that can not be corrected with an

adjustment or cleaning and can cause engine damage.

See TESTING 9L7883 FUEL INJECTION NOZZLES in

TESING AND ADJUSTING.

CAUTION: Keep the work area and all tools extra

clean. Be careful not to cause damage to the parts

during disassembly and assembly of the nozzles.

1. Put the nozzle in tool (B). Put tool (B) and the

nozzle in a vise. Do not put any part of a nozzle

directly in a vise. Loosen locknut (1).

2. Loosen adjusting screw (2) approximately three

turns. Loosen pressure screw (3).

3. While holding the nozzle in one hand, tilt the

nozzle and remove the pressure adjusting screw

and locknut, shims, spring, seat, and valve.