6C13G11 5-401234567892. Level the piston ring 1 in the cylinderwith a piston crown.3. Check the piston ring end gap d at thespecified measuring point. Replace if outof specification.Checking the piston ring grooves1. Measure the piston ring grooves.Replace the piston if out of specification.Piston ring dimensions:Top ring a:B: 1.17–1.19 mm(0.0461–0.0469 in)T: 2.30–2.50 mm(0.0905–0.0984 in)2nd ring b:B: 1.47–1.49 mm(0.0579–0.0587 in)T: 2.60–2.80 mm(0.1024–0.1102 in)Oil ring c:B: 2.36–2.48 mm(0.0929–0.0976 in)T: (reference data)2.75 mm (0.1083 in)Piston ring end gap d:Top ring:0.15–0.30 mm(0.0059–0.0118 in)2nd ring:0.30–0.50 mm(0.0118–0.0197 in)Oil ring:0.20–0.70 mm(0.0079–0.0276 in)Measuring point e: 20 mm (0.8 in)Piston ring groove:Top ring a:1.21–1.23 mm(0.0476–0.0484 in)2nd ring b:1.51–1.53 mm(0.0594–0.0602 in)Oil ring c:2.52–2.54 mm(0.0992–0.1000 in)Cylinder block
