How to tune up a Cummins M11 engine?
With the “A” valve set mark aligned with the pointer on the gear cover and both valves closed on the cylinder to be adjusted, loosen the adjusting screw locknuts on the intake and exhaust valves. Select a feeler gauge for the correct valve lash specification. Insert the feeler gauge between the top of the crosshead and the rocker lever pad.
How to adjust injector plunger on Cummins Engine?
The valve of one cylinder must be closed, which is the cylinder that should be adjusted. 4 Adjust the injector plunger.
How do I adjust the valve lash on a Cummins M11?
The valve lash is not correct when a thicker feeler gauge will fit. Use the following steps if the engine is equipped with an engine brake. After adjusting the injector, valves, and engine brakes, if equipped, on the appropriate cylinder, rotate the accessory drive pulley, and align the next valve set mark with the pointer on the gear cover.
How are intake and exhaust valves adjusted in a Cummins Engine?
The same engine position used in adjusting the injectors is used for settings the intake and exhaust valves. Adjust the injectors and the valves on the same cylinder at the same time. 1. While adjusting the valves, make sure that the compression release, on those engines so equipped, is in the running position. 2.
How do you change the fuel injector on a Cummins M11?
Using a screwdriver (box end wrench, if equipped with engine brakes) and the adjusting screw, bottom the injector plunger three or four times to remove the fuel. Turn the adjusting screw in until you can feel it just bottom the plunger. Back out the adjusting screw two flats, 120 degrees. Hold the adjusting screw, and tighten the locknut.
How are the valves on a Cummins injector adjusted?
Valve spring retainer to crosshead clearance. The “VS” markets used when adjusting the injectors is also used when adjusting the valves; however, the valves to be adjusted are not on the same cylinder as the injector. See Table 2-3 for the correct valves to adjust.