What does an Intake valve actuator do?
The Intake Manifold Actuator is mounted on an Intake Manifold that acts as a passage of air that is sucked into the cylinder of the engine.
Where is the oil sending unit on a C15 Caterpillar?
Right beside the oil filter.
What does IVA pressure sensor do?
System Operation Description: 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).
What is normal oil pressure for C15 Acert?
The oil psi at idle is normal (30psi) and cruise speed is also normal (1250-1300rpm is 60psi).
What is Iva sensor?
The variable valve actuator housings contains Intake Valve Actuators (IVA), hydraulic/electric devices that use engine oil pressure to operate small actuator pistons. This action can control the closing of the intake valves by delaying the movement of the bridge (for the two intake valves per engine cylinder).
What is the purpose of VVA?
Variable Valve Actuation (VVA) makes the engine more flexible, offering better low-end grunt without compromising on top end performance.
What is the intake valve actuator on ACERT cat?
An Intake Valve Actuator or IVA (also known as a Varible Valve Actuator or VVA) is a device that contacts the intake rocker arm and holds the intake valve of an ACERT Cat engine open in an effort to lower the cylinder temperatures of the engine.
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.
What’s the actuator valve on a C15 do?
Under normal driving conditions the motor works in an efficiency mode with 1500 ft/lb trq. Then when needed the cam timing changes and the trq is increased to 1850 trq. Thats why the valves sound noisier at times and quiet (er) other times.
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.