Cylinder Block
Cylinder Block Components
| ITEM | DESCRIPTION |
|---|---|
| 1 | Engine front cover |
| 2 | Cylinder block |
| 3 | Lower timing chain cover |
| 4 | Bolt - Lower timing chain cover (quantity 16) |
| 5 | Bolt - Drive plate (quantity 8) |
| 6 | Right dynamic balancer |
| 7 | Drive plate |
| 8 | Crankshaft |
| 9 | Lower main bearing (quantity 5) |
| 10 | Main bearing cap (quantity 5) |
| 11 | Bolt - Windage tray (quantity 12) |
| 12 | Bolt - Oil pan (quantity 16) |
| 13 | Oil pan |
| 14 | Windage tray |
| 15 | Bolts - Main bearing cap (quantity 10) |
| 16 | Bolt - Mass damper (quantity 4) |
| 17 | Crankshaft pulley/mass damper |
| 18 | Upper main bearing (quantity 5) |
| 19 | Thrust washer (quantity 2) |
| 20 | Left dynamic balancer |
| 21 | Bolt - Engine front cover (quantity 14) |
Major Structural Components
| ITEM | DESCRIPTION |
|---|---|
| 1 | Cylinder head |
| 2 | Cylinder block |
| 3 | Windage tray |
| 4 | Oil pan |
Cylinder block
The deep skirt cast aluminum cylinder block is an inline configuration. Thin wall, interference fit cast iron liners provide optimum weight, cylinder bore roundness and robustness. The low volume coolant jacket reduces engine warm up time.
The cylinder block is a cross flow design with the following:
- The coolant inlet to the cylinder head on the exhaust side.
- The coolant outlet from the cylinder head on the air intake manifold side.
Oil from the cylinder head drains back to the oil pan through open apertures in the cylinder block and cylinder head.
The cylinder block and cylinder head have 4 apertures to drain the oil from the cylinder head. The apertures are in following locations:
- Front of the cylinder head and cylinder block.
- Rear of the cylinder head and cylinder block.
- Left of the cylinder head and cylinder block.
- Right of the cylinder head and cylinder block.
A cast aluminum alloy, structural windage tray is bolted to the bottom of the cylinder block for the following:
- To improve the cylinder block stiffness.
- To minimize Noise, Vibration and Harshness (NVH).
- To help reduce engine oil foaming.
Various machining ports in the cylinder block are sealed with cup plugs and threaded plugs. Removal of these is not necessary for service procedures.
There are a front cover and a rear cover on the engine. Both cover are installed to the cylinder block by bolts and sealed to the cylinder block with RTV sealant. Both covers have a machined recess for an oil seal. The front oil seal is installed into a removable housing that enables the oil seal to be replaced without removing the front cover.
The engine rear cover housing provides for the following:
- The rear crankshaft oil seal.
- The Crankshaft Position (CKP) sensor.
- The starter motor.
- The plug for the timing chain tool access.
In cold climate markets a cylinder block heater is installed to the cylinder block. The heater is screwed into a threaded bore on the cylinder block, which is normally sealed with a threaded plug. The heater comprises a heating element, powered by mains electricity. The heating element warms the engine coolant in the water jacket surrounding the cylinders in the cylinder block to prevent the cylinder block from freezing.
Cylinder numbering
| ITEM | DESCRIPTION |
|---|---|
| A | Right of the engine |
| B | Rear of the engine |
| C | Left of the engine |
| D | Front of the engine |
| 1 | Number 1 cylinder |
| 2 | Number 2 cylinder |
| 3 | Number 3 cylinder |
| 4 | Number 4 cylinder |
The cylinders are numbered from the front of the engine.