Firing order (injection sequence), 3306 Engine … 1, 5, 3, 6, 2, 4
Firing order (injection sequence), 3304 Engine … 1, 3, 4, 2
A. Part number of fuel injection pump and governor group. B. Identification number on housing. C. Location of part number marks on camshaft.
NOTE: Early camshafts had no part number marks on the camshafts. All 4 cylinder camshafts without part number marks at location (C) are 4N4312.
NOTE: If the part number of the fuel injection pump and governor group is not in the chart or if it has a different camshaft, make reference to the parts book, or to TECHNICAL PARTSGRAM; COMMON USAGE IN SLEEVE METERING FUEL SYSTEMS, 4 and 6 PUMP GROUPS, Form No. FEG00707.
Torque for bolt in hole for timing pin … 108 ± 36 lb. in.(12.2 ± 4.1 N·m)
Torque for bolts that hold governor weight carrier to camshaft … 90 ± 10 lb. in.(10.2 ± 1.1 N·m)
(1) Diameter of rear bearing surface (journal) of the camshaft (new) … 2.3720 ± .0005 in.(60.249 ± 0.013 mm)
Bore in the rear bearing for the camshaft (new) … 2.3750 ± .0005 in.(60.325 ± 0.013 mm)
Maximum permissible clearance between the bore in the housing and the sleeve control shaft (worn) … .003 in.(0.08 mm)
(2) Diameter of sleeve control shaft (new) … .3530 ± .0003 in.(8.966 ± 0.008 mm)
Bore in the housing for the fuel control shaft (new) … .3543 ± .0005 in.(8.999 ± 0.013 mm)
Maximum permissible clearance between the bore in the housing and the sleeve control shaft (worn) … .003 in.(0.07 mm)
(3) End play for camshaft with sleeve installed (new) … .023 ± .018 in.(0.58 ± 0.46 mm)
NOTE: When installing sleeve on end of camshaft, support the camshaft to prevent damage to parts inside of injection pump and governor housing.
(4) Diameter of front bearing surface (journal) of the camshaft (new) … .9990 ± .0005 in.(25.375 ± 0.013 mm)
Bore in the front bearing for the camshaft (new) … 1.0005 ± .0005 in.(25.413 ± 0.013 mm)
Maximum permissible clearance between the bearing and the camshaft bearing surface (journal) (worn) … .003 in.(0.08 mm)
Install spring washer with bent side towards the governor spring (5) as shown.
(5) Governor spring:
Make reference to the chart “GOVERNOR SPRINGS.”
For the correct part number for the governor spring for the fuel injection pump and governor group, make reference to the following:
Parts book, RACK SETTING INFORMATION, TECHNICAL PARTSGRAM; COMMON USAGE IN SLEEVE METERING FUEL SYSTEMS, 4 and 6 PUMP GROUPS, Form No. FEG00707.
NOTE: If the engine has “surging”, install the 6N6901 Governor Conversion Group For Close Regulation (“Dashpot” Governor). Special Instruction, Form No. SMHS6762 has instructions for the installation procedures.
(6) Bypass valve:
NOTE: If the spring keeps the pressure in the fuel injection pump housing above 25 psi (170 kPa) with the engine operating under full load, the spring is good.
Pressure of fuel in housing for fuel injection pumps, (Full Load) … 30 ± 5 psi(205 ± 35 kPa)
Install guide pin (A) to depth (B) [.642 ± .003 in. (16.31 ± 0.08 mm)]. Slot in guide pin (A) must be in area shown from center of lifter.
(7) Torque for bushing … 70 ± 5 lb. ft.(95 ± 7 N·m)
(8) 4N4318 Spring for injection pump:
Length under test force … 1.35 in.(34.3 mm)
Test force … 12.5 ± 1.3 lb.(56 ± 6 N)
Free length after test … 1.566 in.(39.78 mm)
Outside diameter … .728 in.(18.49 mm)
(9) Torque for bolt holding sleeve on control shaft … 24 ± 2 lb. in.(2.8 ± 0.2 N·m)
(10) Torque for the nuts that hold the fuel lines (Use 5P144 Fuel line Socket) … 30 ± 5 lb. ft.(40 ± 7 N·m)
(11) Torque for the nuts that hold the nozzles … 105 ± 5 lb. ft.(142 ± 7 N·m)
(12) Body.
(13) Put 5P3931 Anti-Seize Compound on threads of glow plug and tighten to … 120 ± 24 lb. in.(13.6 ± 2.8 N·m)
(14) Tighten nozzle finger tight on body.
(15) Torque for precombustion chamber (put 5P3931 Anti-Seize Compound on threads) … 150 ± 10 lb. ft.(205 ± 14 N·m)
NOTE: See Glow Plug Positioning.
TYPICAL ILLUSTRATION
(16) Torque for bolts holding clamps on fuel injection lines:
With rubber damper … 84 ± 24 lb. in.(9.6 ± 2.8 N·m)
Without damper … 108 ± 36 lb. in.(12.2 ± 4.1 N·m)
(17) Lever assembly.
(18) Clearance between lever assembly (17) and governor housing when shaft assembly (19) is pulled against the governor housing … .437 in.(11.10 mm)
(20) Spring for the terminal shaft. Install the spring (20) for the terminal shaft so that the end of the spring is in the 30° range as shown.
PLASTIC COVER ILLUSTRATED
(21) Torque for bolts holding plastic cover (without tapped hole) … 72 ± 9 lb. in.(8.2 ± 1.0 N·m)
NOTE: Use standard torque for bolts holding steel cover (with tapped hole).