SELVA MARINE Blue Whale 250 EFI, Service Manual

Page: 54 / 377

SPEC
Specification
2-5
6P23H11
Valve lifter
Valve lifter outside diameter mm (in) 32.982–32.997 (1.2985–1.2991)
Valve lifter-to-cylinder head
clearance mm (in) 0.020–0.055 (0.0008–0.0022)
Valve shim
Valve shim thickness
(in 0.020 mm increments) mm (in) 2.320–2.960 (0.0913–0.1165)
Connecting rod
Small end inside diameter mm (in) 21.017–21.031 (0.8274–0.8280)
Big end inside diameter mm (in) 53.015–53.035 (2.0872–2.0880)
Big end side clearance
(*1)
mm (in) 0.15–0.30 (0.006–0.012)
Crankpin oil clearance mm (in) 0.028–0.066 (0.0011–0.0026)
Big end bearing thickness
Yellow mm (in) 1.492–1.496 (0.0587–0.0589)
Green mm (in) 1.496–1.500 (0.0589–0.0591)
Blue mm (in) 1.500–1.504 (0.0591–0.0592)
Crankshaft
Crankshaft journal diameter mm (in) 62.968–62.992 (2.4791–2.4800)
Crankpin diameter mm (in) 49.976–50.000 (1.9676–1.9685)
Crankpin width mm (in) 21.50–21.55 (0.8465–0.8484)
Runout limit mm (in) 0.03 (0.0012)
Crankcase
Crankshaft journal oil
clearance mm (in) 0.025–0.050 (0.0010–0.0020)
Upper crankcase main bearing
thickness
1 mm (in) 2.494–2.500 (0.0982–0.0984)
2 mm (in) 2.498–2.504 (0.0983–0.0986)
3 mm (in) 2.502–2.508 (0.0985–0.0987)
Lower crankcase main bearing
thickness
1 mm (in) 2.494–2.500 (0.0982–0.0984)
2 mm (in) 2.498–2.504 (0.0983–0.0986)
3 mm (in) 2.502–2.508 (0.0985–0.0987)
Lower crankcase main bearing
thickness (J3)
1 mm (in) 2.492–2.500 (0.0981–0.0984)
2 mm (in) 2.496–2.504 (0.0983–0.0986)
3 mm (in) 2.500–2.508 (0.0984–0.0987)
Thrust bearing thickness (J3) mm (in) 1.907–1.957 (0.0751–0.0770)
(*1)
The figures are for reference only.
Item Unit
Model
250 R 250 L