Usage:
3116 Truck Engines
Description of Change: A new control assembly is used in the fuel injection control group. The new assembly provides close clearance shaft bearings and is installed differently than the former control assembly. Formerly, all the bearing supports were factory set. The center supports of the new assembly are tightened after the assembly is installed on the engine.
Adaptable To: The new 4P-9047 or 102-7459 Control Assembly is a direct replacement for the former 7C-1516 Control Assembly in the 7W-6989 Fuel Injection Control Group on 3116 engines.
Use the following procedure for assembly on the 7W-6989 Fuel Injection Control Group (3116 Engines):
1. Assure two screws (1) in inner bearing brackets B and C are loose.
2. Tighten bolts (2) for outer bearing brackets A and D to a torque of 12 ± 3 N·m (9 ± 2 lb ft).
3. Tighten the bolts (2) for inner bearing brackets B and C to a torque of 12 ± 3 N·m (9 ± 2 lb ft).
4. Position the inner bearings B and C to allow free rotation of the rack control rod.
5. Tighten two screws (1) on inner bearing brackets B and C to 3.5 ± 0.2 N·m (2.57 ± .15 lb ft).
6. Control rod must rotate when force of 4.4 N (1 lb) or less is applied to control lever (3) in direction indicated by arrows.
Illustration 1. Location of components on 7W-6989 Fuel Injection Control Group (3116 Engines).