Usage:
Maximum permissible clearance between ring and groove (all rings) ... .006 in.(0.15 mm)
(1) Clearance between top ring and groove ... .0037 ± .0009 in.(0.094 ± 0.023 mm)
(2) Clearance between center ring and groove ... .0032 ± .0009 in.(0.081 ± 0.023 mm)
(3) Clearance between oil ring and groove ... .0024 ± .0009 in.(0.061 ± 0.023 mm)
(4) Bore in piston for pin:
5S9017 Piston ... 1.5011 ± .0002 in.(38.128 ± 0.005 mm)
2P6271 Piston ... 1.7006 ± .0003 in.(43.195 ± 0.007 mm)
7S6792 Piston ... 1.7006 ± .0003 in.(43.195 ± 0.007 mm)
Maximum permissible clearance between piston pin and bore in piston (worn) ... .002 in.(0.05 mm)
Clearance between ends of piston ring installed in cylinder liner with bore size of ... 4.750 in.(120.65 mm) *
(5) Top ring ... .0245 ± .0075 in.(0.622 ± 0.191 mm)
(6) Center ring ... .0245 ± .0075 in.(0.622 ± 0.191 mm)
(7) Oil control ring (bottom) ... .018 ± .005 in.(0.46 ± 0.13 mm) ... .003 in.(0.08 mm)
*Increase in clearance between ends of piston ring for each .001 in. (0.025 mm) increase in cylinder liner bore size