4.2.2 Crankcase with oil pan
1 Crankcase
2 Main oil gallery
3 Upper end cover
4 Coolant chamber
5 Cylinder liner
6 Engine oil transfer
7 Coolant transfer
8 Oil dipstick
9 Oil filler neck
10 Inspection port cover
11 Oil pan
12 Crankshaft bearing cap
13 Crankshaft bearing
14 Oil spray nozzle for piston
cooling
15 Camshaft bearing
KS Driving end
Crankcase
The crankcase is the central component of the engine. It accommodates crankshaft, camshaft and cylinder
liners and features coolant and lube oil ducting. The gearcase and coolant distribution housing are installed
on the face at the free end (KGS). The flywheel housing is located on the driving end (KS).
The cylinder heads and engine lifting points are mounted left and right on the top decks, the exhaust turbo-
chargers in the middle.
Technical data
• Crankcase cast as one piece
• Integral coolant ducting
• Integral main oil gallery in upper end cover
• Replaceable, wet cylinder liners
• Split sleeve bearings for crankshaft
• Sleeve bearings for camshaft
• Crankshaft bearing caps secured vertically and horizontally
• Integral oil supply for piston cooling
• Crankcase ventilation (closed circuit)
• Large inspection port covers
44 | Series 4000 Engines | MS15065/01E 2019-01
TIM-ID: 0000067387 - 002
