3306 DIRECT INJECTION VEHICULAR ENGINE WITH NEW SCROLL FUEL – Fuel Injection Pumps

Remove And Install Fuel Injection Pumps

Start By:

a. remove governor*


*


NOTICE

Keep all parts clean from contaminants. Contaminants put into the system may cause rapid wear and shortened component life.


1. Remove the bolts and the plate from the side of the fuel injection pump housing.

2. Install tool (A) in the fuel injection pump housing. Move the rack until tooling (A) can be installed to hold the rack in the center position to remove the fuel injection pumps.

3. Use tooling (B) to remove bushing (1).

4. Remove the O-ring seal from the fuel injection pump housing.

5. Install tooling (C) on the bonnet and remove the fuel injection pump.

6. Remove spacer (2).

NOTE: Keep the spacers (2) from the fuel injection pumps together with identification as to their location in the pump housing.

7. Perform steps 3 through 6 to remove the other fuel injection pumps.

NOTE: The following steps are to install the fuel injection pumps.

8. Install spacer (2).

9. Install tooling (A). Move the rack until tooling (A) can be installed to hold the rack in the center position. The rack must be in the center position to install the fuel injection pumps.

10. Turn camshaft until the lobe of the camshaft is down for the pump to be installed.

11. Install tooling (C) on the bonnet on the fuel injection pump.

12. Install the fuel injection pump in the pump housing with saw cut slot in the gear, in alignment with the small pin and groove in the barrel in alignment with dowel in the pump housing.

13. Put clean oil on O-ring seal and install it in the fuel injection pump housing.

14. Install the bushing by hand until the bushing is even with the top of the housing. If the bushing can not be installed this far by hand, remove it. Remove the fuel injection pump and put the pump in alignment again and install the bushing again.

15. Install tooling (B) on the bushing and tighten the bushing to a torque of 190 ± 14 N·m (140 ± 10 lb ft).

16. Install tooling (D) to measure total rack travel. Correct rack travel is 15.7 mm (.618 in). A smaller measurement is an indication of improper fuel injection pump installation.

17. Perform Steps 1 through 9 to install the other fuel pumps.

18. Install the cover and gasket on the fuel injection pump housing.

End by:

a. install governor*


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Disassemble And Assemble Fuel Injection Pumps

Start By:

a. remove fuel injection pumps


NOTICE

When the injection pumps are disassembled, handle the parts carefully. Do not damage the surfaces of the plungers, barrels and bonnets. Any scratches will cause leakage inside the fuel injection pump. The plunger and barrel for each pump are made as a set. Do not intermix the plunger of one pump in the barrel with another pump. If one part is worn, install a complete new pump assembly. Be careful when placing the plunger into the bore of the barrel.


1. Pull plunger (1) and washer (5) out of the barrel (3) and spring (2).


NOTICE

Do not remove the gear from the plunger. The gear and plunger are assembled and adjusted at the factory.


2. Remove washer (5) and spring (2).

3. Remove ring (6). Separate barrel (3) from bonnet (4).

4. Remove check assembly (7) and spring (8). If check assembly (7) is disassembled, do not mix parts with parts from another check assembly.

NOTE: The following steps are for the assembly of the fuel injection pumps.


NOTICE

Put clean fuel oil on all parts during assembly.


5. Install spring (8) and check assembly (7) in bonnet (4).

6. Install bonnet (4) on barrel (3) and install ring (6). Do not slide bonnet (4) across barrel (3). Check assembly (7) in the bonnet may cause damage to the face of barrel (3).

7. Install spring (2). Install washer (5) on plunger (1) with the flat side toward the gear on the plunger.

8. Install plunger (1) in barrel (3) until washer (5) is engaged in the spring.

End By:

a. install fuel injection pumps

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