Description And Operation
The engine block is made of aluminum. It is a single block that includes the cylinders, coolant cavities and oil galleries.
On the exhaust side of the engine block there are mounting surfaces and related cavities for the following components:
- Oil Cooler
- Exhaust gas inlet for the low pressure Exhaust Gas Recirculation (EGR)
- Coolant inlet (from the coolant pump)
- EGR exhaust gas outlet from the crankcase (for the cylinder head)
On the inlet side of the engine block there are cavities for pre-separation of the oil vapors (1).
On the transmission side, you can see the surface with the readable engine identification along with a QR Code scannable code symbol (1) and the port (2) for the engine block heater (dealer installed accessory only available for cold climates).
On the timing side of the engine block are the bores for the two counter-rotating balance shafts, one on the intake side (1) and the other on the exhaust side (2).
The following information is shown on the surface of the exhaust side of the engine block:
- Cylinder tolerance classes
- Upper crankshaft main bearing tolerance classes