Download Removal/refitting requires: Engine removal. NOTE: Refer to Technical Data module for tightening torques. Sump removal. Align coloured chain links with timing mark on each sprocket , ,  &  . NOTE: Timing chain marks on injection pump sprocket maybe difficult to see. Remove: Upper timing chain and tensioner. Lower timing chain tensioner. Injection pump sprocket and timing chain. Refit: Ensure crankshaft sprocket keyway at 12 o’clock position  . Install injection pump sprocket and timing chain. Insert injection pump sprocket locking tool  . Tool No.KV11106030. Align blue or silver coloured chain link with injection pump sprocket timing mark  . Align yellow coloured chain link with crankshaft sprocket timing mark  . Align blue or silver coloured chain links with timing mark on each camshaft sprocket  . Align yellow coloured chain link with injection pump sprocket timing mark  . Reset timing chain tensioners: Push plungers into tensioner housings and lock with retaining clips. Refit timing chain tensioners. Remove retaining clips.