Camshaft Carrier
| ITEM | DESCRIPTION |
|---|---|
| 1 | Continuously variable valve lift assembly |
| 2 | Engine oil separator |
| 3 | Oil filler and cap assembly |
| 4 | Camshaft carrier |
| 5 | Intake camshaft |
| 6 | Exhaust camshaft |
| 7 | Camshaft caps (10 off) |
| 8 | Bolt - Camshaft cap (10 off) |
| 9 | Variable Camshaft Timing (VCT) actuator - Exhaust |
| 10 | Bolt - VCT actuator (2 off) |
| 11 | VCT actuator - Intake |
The structural camshaft carrier is cast from aluminum alloy using a high pressure die cast process. The camshaft carrier is located on two dowels in the cylinder head and secured with bolts. A gasket seals the camshaft carrier to the cylinder head.
The primary function of the camshaft carrier is to house and secure the intake and exhaust camshafts. The camshaft carrier bore geometry is bored in a single machining operation to ensure optimum friction reduction. Each camshaft cap is uniquely identified and must be matched to its related bore.
The camshaft carrier also provides locations for the Camshaft Position (CMP) sensors, the oil filler pipe and the engine oil separator. The camshaft carrier has high pressure oil galleries feeding the Variable Camshaft Timing (VCT) actuators and provides thrust face lubrication. A low pressure oil gallery returns oil from the engine vent module back to the cylinder block and oil pan.