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Check the inner diameter of each cylinder bore (See CYLINDER BORE All Cylinders 81.000 - 81.010 mm Check piston ring to groove side clearance. • Clean the ring slot using a suitable tool. • Measure piston ring to groove side clearance. RING GROOVE CLEARANCE First Ring 0.04 - 0.08 mm Second Ring 0.01 - 0.0251 mm • Wipe the cylinder bore clean. Insert ring and push down with piston to ensure it is square in the bore. The ring gap measurement must be made with the ring posi- ENGINE UNIT REPAIR BESM020063 BESM020051 BESM020052
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