What are the actuators on the exhaust cam?

What are the actuators on the exhaust cam?

There are two actuators in the system; one for the exhaust cam and one for the intake cam. The system is designed to lower emission output, give a wider torque range, improve gas mileage, and improve engine idle.

How does a helical spline change cam timing?

The camshaft is designed with a helical spline that allows the camshaft to change its position in its relationship to the camshaft drive sprocket, which changes the camshaft and crankshaft relationship, thus changing cam timing. This technology was replaced with the vane type, which is a more efficient set up. Applications 2006 & 2007

What are the actuators on a GM 4.2L engine?

There are two actuators in the system; one for the exhaust cam and one for the intake cam. The system is designed to lower emission output, give a wider torque range, improve gas mileage, and improve engine idle. In 2004 and prior years, the GM 4.2L engine used the cam phaser on the front end of the exhaust camshaft.

Where can I get a Ford V6 camshaft?

Camshaft, Hydraulic Roller Tappet, Advertised Duration 265/273, Lift .500/.500, Ford, 3.8/4.2L V6, Each Part Number: CCA-44-702-9 More Detail… This part is normally shipped directly from the manufacturer / Supplier. Order this item and get free delivery and handling on your entire order! Offer excludes truck freight and oversize fees.

How does the camshaft advance actuator system work?

With the signal received from the PCM, the solenoids actuators open allowing engine pressure to enter either one of the two passages; camshaft advance or camshaft retard. Since the solenoid is pulse width modulated, the system can vary camshaft position between its two limits (25 or 50 degs depending on system).

How do you calculate the timing of a camshaft?

The TDC position can be calculated by adding the two figures together and dividing by two. Adjust the timing disc so that it reads zero on the pointer at true TDC. If the head has not been removed when changing the cam, it is still possible to measure the true TDC position.

What do you need to know about replacing a camshaft?

Where a camshaft is being replaced due to excessive wear, it would be highly recommended to strip the engine and fully clean the internals. Metal particles present in the sump, oil pump, bearings and oil galleries will soon play havoc with the new cam. It would also be wise to check the oil feed system.