How to adjust the valve lash and injector height?
How to adjust the valve lash and injector height?
Valve Lash and Injector Height Adjustment Sequence Never set the valves and injector of the same cylinder at the same time. Doing this will result in engine damage. To adjust the intake valves, insert a 0
How to set up top end valves injectors?
Align the “A” or “1-6 VS” mark on the accessory drive pulley with the pointer on the gear cover. Note: It is important to adjust the injector first before adjusting the valves on a cylinder when using the OBC overhead set procedure.
How to do an injector Adjustment on a Cummins?
The adjustment can begin on any valve set mark. In the following example, the adjustment will begin on the “A” valve set mark with cylinder number 1 valves closed and ready for adjustment. Rotate the accessory drive clockwiseuntil the “A” valve set mark on the accessory drive pulley is aligned with the pointer on the gear cover. Mark on pully
How is the height of the fuel injector measured?
The fuel injector height is measured using the required Injector Height Gage as listed in Table “Checking Tolerance Chart” . On engines equipped with a Jake Brake®, move the handle on the injector height gage to the alternate position, 90 degrees to the shank.
Align the “A” or “1-6 VS” mark on the accessory drive pulley with the pointer on the gear cover. Note: It is important to adjust the injector first before adjusting the valves on a cylinder when using the OBC overhead set procedure.
What’s the best way to tighten an injector lever?
Use a dial type torque wrench to tighten the injector lever adjusting screws to the specified torque. If the screw causes chattering during setting, repair the screw and lever as required. Hold the torque wrench in a position that allows you to look in a direct line at the dial to insure that you are reading it accurately.
What’s the OBC method for STC injectors?
There has been much confusion about setting STC injectors, particularly those CPL’s that have reverted to setting injectors using the OBC (Outer Base Circle) method. The information contained here applies only to those engines with STC injectors that are set using the OBC method.
How do you adjust the injector rocker torque?
Refer to the engine model and CPL for the correct injector rocker lever adjusting screw torque value. Use a dial type torque wrench to tighten the injector lever adjusting screws to the specified torque. If the screw causes chattering during setting, repair the screw and lever as required.
