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: exhaust gas recirculation valve III Petrol direct injection engine M 270 Mercedes Benz vane-type camshaft adjuster turbo-charger with variable geometry and electrical control motor