Crank shaft
- Make
- Alfa Romeo
- Model
- 147 Factory Service Manual
- Year
- 2000–2004
- Section
- Crankshaft and flywheel › Crank shaft
Crank shaft
OPERATION
It is of forged high-tensile alloy steel, induction hardened on the journals and crankpins and rolled on the grooves.
It rests on five main bearings with bearing shells graded into three sizes.
The crankshaft endfloat is adjusted by two thrust washers located in the central main bearings.
Eight counterweights ensure that the rotating masses of the crankshaft are precisely balanced.
A channel runs along the inside of the shaft to lubricate the main bearings and big end bearings.
The phonic wheel (1) for the rpm sensor is mounted on the rear.
OPERATION
It is of forged high-tensile alloy steel, induction hardened on the journals and crankpins and rolled on the grooves.
It rests on five main bearings with bearing shells graded into three sizes.
The crankshaft endfloat is adjusted by two thrust washers located in the central main bearings.
Eight counterweights ensure that the rotating masses of the crankshaft are precisely balanced.
A channel runs along the inside of the shaft to lubricate the main bearings and big end bearings.
The phonic wheel (1) for the rpm sensor is mounted on the rear.
CONSTRUCTION FEATURES
Made from cast iron, it rests on the six main journals and the endfloat is adjusted by two thrust washers located in the rear main bearing.
Eight counterweights ensure that the rotating masses of the crankshaft are precisely balanced.
A channel runs along the inside of the crankshaft to lubricate the main bearings and big end bearings.
The phonic wheel (1) for the rpm sensor is mounted on the rear.
CONSTRUCTION FEATURES
Made from steel, it rests on the six main journals and the endfloat is adjusted by two thrust washers located in the rear main bearing.
Eight counterweights ensure that the rotating masses of the crankshaft are precisely balanced.
A channel runs along the inside of the crankshaft to lubricate the main bearings and big end bearings.
The phonic wheel (1) for the rpm sensor is mounted on the rear.
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