Essential tool for timing chain work on Mercedes Benz 1.7D, 2.1D, 2.2D, 2.7D, 3.0D, 3.2D, 3.9D and 4.0D CDi diesel engines. The link separating tool and the link assembly tool allow for quick and easy separation and assembly of the timing chain. May also be used on some Chrysler/Jeep 2.2D, 2.7D and 3.0D CRD diesel engines.