N14 Base Engine Troubleshooting and Repair Manual – Variable Speed (VS) Governor — Surge with Engine Under Load

Symptom Tree  t127

This is symptom tree t127
Cause Correction

Air in the fuel system

Check for air in the fuel system. Refer to Procedure 006-003.


Variable speed (VS) speed settings are not correct

Adjust the external idle and high?speed screws. Refer to Procedures 005-028 and 005-029.


Idle spring is not required

Check the fuel pump code for idle spring requirements. Remove the VS idle spring if it is not required. Refer to Procedure 005-057.


Governor springs are not correct

Check the fuel pump code. Replace the fuel pump if necessary. Refer to Procedure 005-016.

Last Modified:  20-Jan-2004