balancing model for crankshafts By putting on, taking off or changing the position of different counterweights, a static or dynamic unbalance of crankshafts can be shown. proper selection and positioning of the weights cause a true running. description ordernumber 1010 see also: nozzle holder with two-spring injection nozzle high-pressure pump for engines with direct petrol injection (GDI) pump tappet of an in-line pump Cylinder head of a petrol direct injection engine M 271 Evo Mercedes Benz