Sealey petrol engine crankshaft locking pin belt drive sealey vse4143 32 pin is screwed into the side of the engine to lock the crankshaft so that the pulley retaining bolt can be loosened tightened applies to zetec duratec engines in fiesta fusion and focus also suitable for some mazda and volvo vehicles sealey vse4143 32 petrol engine crankshaft locking pin belt drive