The 16-cylinder crankshaftweighs 1,847 kg (4,072 lb)without the counterweightsattached and 2,963 kg (6,532 lb)with the counterweightsattached. The 12-cylindercrankshaft weighs 1,453 kg(3,203 lb) without thecounterweights attached and2,286 kg (5,039 lb) with thecounterweights attached. As thecounterweights are removed,the crankshaft may rotate fromthe transfer of weight. Makesure the crankshaft isadequately supported.