Sealey universal timing belt pulley locking tool sealey vs780 one of the most versatile engine tools on the market lock single cam and two cam v engines fast and effectively suitable also for locking the injection pump sprocket on diesel engines compact investment cast body allows use on the widest range of engine types even where space is at a premium locking the sprocket on its timing mark using the vs780 can also give that helpful extra hand when refitting the timing belt fits spro