BMW N55 - Vibration Damper

54
N55 Engine
Vibration Damper
A single-mass vibration damper is used on the N55 engine. The belt pulley is mounted
on the secondary pulley. Compared to the N54 engine, this design layout additionally
reduces the belt load as the vulcanization decouples the belt pulley with flywheel mass
from the crankshaft.
N54, vibration damper
Index Explanation
A
Vibration damper, N55 engine
B
Vibration damper, N54 engine
1
Crankshaft
2
Bolts
3
Primary pulley
4
Vulcanization
5
Secondary belt pulley with flywheel mass
6
Primary belt pulley
7
Flywheel mass