WHAT DOES 4AGE 20V MEAN?

16V and Silvertop engines all make use of a rubber dampener among the center part of the main crank pulley and both of those of two outer pulley rows. The Blacktop Conversely only has dampening over the pulley row that is definitely to the side nearer to your engine, as such the outwards facing row over the pulley that's the one that likely drives