20460373 Volvo.Penta Turbocharger, 195kW

FIVE RING PISTON(1) First (top) compression ring: Width of compression ring ... 2.357 to 2.383 mm (.0928 to .0938 in.)Clearance between ends of ring installed in cylinder liner that has no wear ... 0.30 to 0.43 mm (.012 to .017 in.)(2) Second and third compression rings: Width of compression rings ... 2.357 to 2.383 mm (.0928 to .0938 in.)Clearance between ends of each ring installed in cylinder liner that has no wear ... 0.30 to 0.43 mm (.012 to .017 in.)(3), (4) Fourth and fifth oil rings: Width of oil rings ... 6.32 to 6.35 mm (.249 to .250 in.)Clearance between ends of each ring installed in cylinder liner that has no wear ... 0.30 to 0.43 mm (.012 to .017 in.) The ring gaps shown are for a liner inside diameter of 98.48 mm (3.877 in.). In service, for every 0.03 mm (.001 in.) difference in liner diameter, an additional 0.08 mm (.003 in.) ring gap should be allowed.(5), (6), (7) Width of each groove for compression rings ... 2.431 to 2.456 mm (.0957 to .0967 in.) Clearance between each compression ring in the groove ... 0.048 to 0.099 mm (.0019 to .0039 in.)(8), (11) Width of each groove for oil rings ... 6.414 to 6.439 mm (.2525 to .2535 in.) Clearance between each oil ring in the groove ... 0.064 to 0.114 mm (.0025 to .0045 in.)(9) Diameter of piston pin (new) ... 34.920 to 34.93 mm (1.3748 to 1.375 in.)(10) Bore in piston for pin ... 34.9212 to 34.9263 mm (1.37485 to 1.37505 in.) Clearance of piston pin in piston ... 0.030 to 0.0140 mm (.0012 to .00055 in.)Piston height above cylinder block ... 0.00 to 0.18 mm (.000 to .007 in.)Three Ring:
THREE RING PISTON(1) First (top) compression ring: Width of compression ring ... 2.362 to 2.375 mm (.0930 to .0935 in.)Clearance between ends of ring installed in cylinder liner that has no wear ... 0.25 to 0.61 mm (.010 to .024 in.)(2) Second compression ring: Width of compression ring ... 2.362 to 2.375 mm (.0930 to .0935 in.)Clearance between ends of each ring installed in cylinder liner that has no wear ... 0.41 to 0.86 mm (.016 to .034 in.)(3) Oil ring: Width of oil ring ... 4.724 to 4.763 mm (.1860 to .1875 in.)Clearance between ends of each ring installed in cylinder liner that has no wear ... 0.25 to 0.84 mm (.010 to .033 in.) The ring gaps shown are for a liner inside diameter of 98.48 mm (3.877 in.). In service, for every 0.03 mm (.001 in.) difference in liner diameter, an additional 0.08 mm (.003 in.) ring gap should be allowed.(4) Width of groove for first compression ring ... 2.464 to 2.484 mm (.0970 to .0978 in.) Clearance between first compression ring in the groove ... 0.089 to 0.122 mm (.0035 to .0048 in.)(5) Width of groove for second compression ring ... 2.446 to 2.464 mm (.0963 to .0970 in.) Clearance between second compression ring in the groove ... 0.071 to 0.102 mm (.0028 to .0040 in.)(6) Width of groove for oil ring ... 4.788 to 4.808 mm (.1885 to .1893 in.) Clearance between oil ring in the groove ... 0.025 to 0.084 mm (.0010 to .0033 in.)(7) Bore in piston for pin ... 34.9212 to 34.9263 mm (1.37485 to 1.37505 in.) Diameter of piston pin (new) ... 34.928 to 34.935 mm (1.3751 to 1.3754 in.)Clearance of piston pin in piston ... 0.030 to 0.0140 mm (.0012 to .00055 in.)Piston height above cylinder block (not shown) ... 0.00 to 0.18 mm (.000 to .007 in.)T6.3544 Engines:
(1) First (top) compression ring: Width of compression ring ... Wedge shapedClearance between ends of ring installed in cylinder liner that has no wear ... 0.25 to 0.66 mm (.010 to .026 in.)(2) Second compression ring: Width of compression ring ... 2.362 to 2.375 mm (.0930 to .0935 in.)Clearance between ends of each ring installed in cylinder liner that has no wear ... 0.30 to 0.76 mm (.012 to .030 in.)(3) Oil ring: Width of oil ring ... 4.724 to 4.763 mm (.1860 to .1875 in.)Clearance between ends of each ring installed in cylinder liner that has no wear ... 0.25 to 0.84 mm (.010 to .033 in.) The ring gaps shown are for a liner inside diameter of 98.48 mm (3.877 in.). In service, for every 0.03 mm (.001 in.) difference in liner diameter, an additional 0.08 mm (.003 in.) ring gap should be allowed.(4) Width of groove for first compression ring ... Tapered(5) Width of groove for second compression ring ... 2.426 to 2.446 mm (.0955 to .0963 in.) Clearance between second compression ring in the groove ... 0.051 to 0.097 mm (.0020 to .0038 in.)(6) Width of groove for oil ring ... 4.788 to 4.808 mm (.1885 to .1893 in.) Clearance between oil ring in the groove ... 0.025 to 0.084 mm (.0010 to .0033 in.)(7) Bore in piston for pin ... 38.100 to 38.1005 mm (1.5000 to 1.50002 in.) Diameter of piston pin (new) ... 38.095 to 38.100 mm (1.4998 to 1.5000 in.)Clearance of piston pin in piston ... 0.000 to 0.010 mm (.0000 to 0004 in.)Piston height above cylinder block (not shown) ... 0.00 to 0.18 mm (.000 to .007 in.)