TROUBLE SHOOTING CHARTS (Needle Valve Injectors)
SUGGESTED REMEDY
I. Lap the injector body.
10. Replace the seal rings.
2. Tighten the injector nut to 75-85 lb-ft (102-115
I I. Install new body plugs.
Nm) torque. Do not exceed the specified torque.
12. Replace the filter cap gaskets and tighten the filter
3. Replace the plunger and bushing.
caps to 65-75 lb-ft (88-102 Nm) torque.
4, 5, 6 and 7. Replace the needle valve and spray tip
13. Clean up the sealing surfaces or replace the filter
assembly.
caps, if necessary. Replace the filter if a cap is
replaced.
8. Replace the valve spring.
9. Replace the valve spring seat.
14. Disassemble the injector and clean all of the parts.
Fuel System and Governor
11C-53