Where are the actuators located on a cat engine?

Where are the actuators located on a cat engine?

The ECM sends a signal to the coil in order to fully open the spool. The oil is released into the space underneath the valve cover and the rail pressure is reduced. Actuator (54) – The actuators are located under the valve covers. Pressurized engine oil flows from the rail to each actuator.

How does the intake valve actuation system work?

The Intake Valve Actuation system (IVA) uses pressurized engine oil to delay the closing of the intake valves. The system is controlled by the Engine Control Module (ECM). The system contains the following components: Check Valve (53) – Pressurized engine oil flows to a rail inside the valve cover base.

Can a valve be adjusted while the engine is stopped?

All of the clearance measurements and the adjustments must be made with the engine stopped. The valves must be fully closed. An adjustment is not necessary if the measurement of the valve lash is in the acceptable range. Adjust the valve lash while the engine is stopped.

When does the ECM command the control valve to open?

The ECM commands the control valve to open for 17 seconds. The ECM checks the temperature of the coolant. The ECM commands the control valve to close when the coolant temperature exceeds 20 °C (68 °F). This allows the temperature of the oil in the rail to warm up.

How to adjust the ACERT valve on a C-15 ACERT?

If both rockers on #1 are loose, then you have the engine pinned at #1 Top Dead Center. If they are tight, and both rocker arms on #6 are loose, then you are #6 TDC. Then adjust the Jakes over 1, 3 & 5. Rotate the engine one full turn & pin the flywheel again.

What are the valve actuators on a cat C15 Acert?

Refer to Specifications, “Variable Valve Actuators” for the proper torque for the jam nut. Turn the crankshaft clockwise by 360 degrees. This will position the No. 6 piston at the top center on the compression stroke.

How do you adjust the vavles on a cat C-13 engine?

Place the appropriate feeler gauge between rocker arm and the valve bridge. Then, turn the adjustment screw in a clockwise direction. Slide the feeler gauge between the rocker arm and the valve bridge. Continue turning the adjustment screw until a slight drag is felt on the feeler gauge. Remove the feeler gauge.

Where is the feeler gauge on Cat C15 Acert?

Refer to Specifications, “Variable Valve Actuators” for the amount of lash. Place the feeler gauge between the piston pin and the rocker arm. Note: The inlet rocker arm must be in contact with valve bridge (4) when you set the lash for variable valve actuators.