Crankshaft assembly,  OM617

Statically balancing of flywheel



03-440 Statically balancing of flywheel






Flywheel for
Balancing bores Max. depth of bore
Bore dia.
Hole pattern dia.
Automatic transmission
Special tool





Balancing mandrel (Flywheel for automatic and manual transmission)
om617 - 0139-1.jpg
617 589 00 63 00


Conventional tool


Rotating device for static balancing
e.g. made by Trebel, D-4030 Ratingen type EO




The engine is fully balanced, that is, the complete engine has been balanced on a balancing machine.
Since in the event of repairs this type of balancing cannot be performed, while on the other hand the balanced condition of the engine should be main­tained as much as possible, a new flywheel must be brought to the same balancing condition as the removed flywheel.


Static balancing


1 Place old and new flywheel one above the other in such a manner that all the bores are in alignment and both coupling surfaces are facing in one direction.






2 Insert balancing mandrel and screw-on new fly­wheel offset by accurately 180° in relation to old flywheel.
om617 - 0140-1.jpg
01    Mounting
02   Shaft
03    Centering disc


3 Permit balancing mandrel with both flywheels to swing on rotating device to stop.
om617 - 0140-2.jpg


4 If an unbalance if found, drill as many holes on heavy side of new flywheel as required until the fly­wheels will come to a rest in any position without swinging.
The hole circle dia., the drill dia. and the max. drilling depth must be maintained.