Our 2.0l Type 2 (bus) or Type 4 (411/412) and Porsche 914 crankshaft without attachments with 71mm stroke are pre-measured, cleaned and optically tested, then blasted glass beads. The crankshaft is then subjected to a crack test. Then the bearing points are sanded as required, or only polished. Finally, they are oiled and stored according to grinding dimensions. They are rebalanced !