What does a 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.
What is a VVA solenoid?
Abstract: Variable valve actuation (VVA) technologies are used to add flexibility to the engine’s valve train by enabling variable valve event timing, duration and/or lift. The main types of VVA technologies include valve timing control (VTC), variable valve lift (VVL) and camless valve trains.
How do you adjust the valves on a C15 cat?
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….C15 and C18 – Engine Valve Lash – Inspect/Adjust.
| TC Compression Stroke | Inlet Valves | Exhaust Valves |
|---|---|---|
| Cylinders | 1-2-4 | 1-3-5 |
What is the displacement of a C15 CAT engine?
15.2 l
General
| Engine Configuration | In-Line 6 In-Line 6 |
|---|---|
| Bore | 5.4 in 137 mm |
| Stroke | 6.7 in 171 mm |
| Displacement | 927.6 in³ 15.2 l |
| Compression Ratio | 17.0:1 17.0:1 |
What does C15 Acert mean?
Advanced Combustion Emissions Reduction Technology
So how does the new C15 with ACERT (Advanced Combustion Emissions Reduction Technology) manage to be clean and powerful? The idea is to run the engine lean and mean-lots of boost, lots of compression, and precise injection events to make the C15 use fuel as efficiently as possible.
What is a Cat C15 Acert?
Cat C15 ACERT engines are the ideal solution for your demanding operations in the oilfield. Cat C15 ACERT™ Industrial Diesel Engine. Ratings: 328-444 bkW (440-595 bhp) @ 1800-2100 rpm meet China Stage II, U.S. EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards.
How do you fix code 94 on a Caterpillar C15?
Trucking Jobs in 30 seconds Code 94 is IVA # 5 and 6 that is not responding, current is too high or low. Most of the time the plugs going to the solenoids get brittle and loose contact, or could be a broken wire. I would remove the rear valve cover and check the wiring harness or plugs going to the IVA’s.
How do you adjust the valves on a C12 cat?
how to adjust injectors on a C12 cat engine with a engine number…
- Put the No.
- Loosen the locknut.
- Turn the adjustment screw until the screw makes contact with the electronic unit injector.
- Tighten the adjustment screw to an additional 2 turns.
- Turn the adjustment screw counterclockwise for 2.5 turns.
Is the Cat C15 Acert a good engine?
Caterpillar C15 ACERT Problems If tuned correctly, the C15 ACERT can be a strong, reliable engine. There are some problems with earlier models however, which we’ll go over. At the beginning of production a common issue was broken rocker studs.
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.
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.
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.