SELVA MARINE Kingfish 25, Service Manual

Page: 38 / 398

1-18
1
Crankcase
Crankshaft journal oil
clearance
mm (in) 0.012–0.036 (0.0005–0.0014)
Item Unit
Model
E.ST. E.ST.PT.
Cylinder
Bore mm (in) 65.000–65.015 (2.5591–2.5596)
Piston
Diameter mm (in) 64.950–64.965 (2.5571–2.5577)
Measuring point mm (in) 5.0 (0.20)
Piston clearance mm (in) 0.035–0.065 (0.0014–0.0026)
Ring groove (Top) mm (in) 1.210–1.230 (0.0476–0.0484)
Ring groove (2nd) mm (in) 1.510–1.530 (0.0594–0.0602)
Ring groove (Oil) mm (in) 2.520–2.540 (0.0992–0.1000)
Pin boss inside diameter mm (in) 15.974–15.985 (0.6289–0.6293)
Pin outside diameter mm (in) 15.965–15.970 (0.6285–0.6287)
Oversize diameter
1st mm (in) 65.200–65.215 (2.5669–2.5675)
2nd mm (in) 65.450–65.465 (2.5768–2.5774)
Piston ring
End gap measuring point mm (in) 20.0 (0.79)
Top ring
Type Barrel
Dimension height (B) mm (in) 1.170–1.190 (0.0461–0.0469)
Dimension width (T) mm (in) 2.300–2.500 (0.0906–0.0984)
End gap (*1) mm (in) 0.150–0.300 (0.0059–0.0118)
Side clearance mm (in) 0.020–0.060 (0.0008–0.0024)
2nd ring
Type Taper
Dimension height (B) mm (in) 1.470–1.490 (0.0579–0.0587)
Dimension width (T) mm (in) 2.600–2.800 (0.1024–0.1102)
End gap (*1) mm (in) 0.300–0.500 (0.0118–0.0197)
Side clearance mm (in) 0.020–0.060 (0.0008–0.0024)
Oil ring
Dimension height (B) mm (in) 2.360–2.480 (0.0929–0.0976)
Dimension width (T) mm (in) 2.750 (0.1083)
End gap (*1) mm (in) 0.200–0.700 (0.0079–0.0276)
Side clearance mm (in) 0.040–0.180 (0.0016–0.0071)
Connecting rod
Small end inside diameter mm (in) 15.985–15.998 (0.6293–0.6298)
Big end inside diameter mm (in) 36.000–36.024 (1.4173–1.4183)
Big end side clearance mm (in) 0.050–0.220 (0.0020–0.0087)
Crankpin oil clearance mm (in) 0.016–0.040 (0.0006–0.0016)
Item Unit
Model
STD
Power unit technical data