Procedure To Torque Camshaft Gears
For CAT engines 3406E, C-15, C-16 and C-18, follow the ensuing torque sequence to avoid premature wear of the No. 1 camshaft bearing.
Lightly lubricate the O-ring seal on the outside of the sealing plate of the camshaft with a 50/50 mixture of 8T-2998 lubricant and clean engine oil.
Next, apply 9S-3263 Thread Lock Compound to the three bolts for the sealing plate of the camshaft. Tighten the three sealing plate bolts on the camshaft to the following torque: 9 +/- 2 lb.-ft.
Now, tighten the camshaft bolts in the following sequence (See Figure 1): 1, 4, 2, 5, 3, 6, 1, 4. Torque should be 177 +/- 30 lb.-ft.
New Fuel Pressure Regulators now Available
For CAT C7 and C9 engines, a 90 micron screen has been added between the check valve and the regulator valve within the pressure regulator to increase the functionality.
The 294-8620 Regulator is a direct replacement for the 229-8870 Regulator. The 294-8621 Regulator is a direct replacement for the 229-8871 Regulator.
Updated Intake Valve Response Test Available
Applicable to its C11, C13 and C15 engines, Caterpillar has updated the test for the response of intake valve actuators. The updated information is intended to help technicians determine the cause of diagnostic codes for intake valve actuators and the intake valve actuation warm-up solenoid.
