SELVA MARINE Blue Whale 250 EFI Service Manual page 53

Item
Oil ring
Dimension B
Dimension T
(*1)
End gap
Side clearance
Camshaft
Intake (A)
Exhaust (A)
Intake and
exhaust (B)
Camshaft journal diameter
Camshaft runout limit
Valve
Valve clearance (cold)
Intake
Exhaust
Head diameter (A)
Intake
Exhaust
Face width (B)
Intake
Exhaust
Seat contact width (C)
Intake
Exhaust
Margin thickness (D)
Intake
Exhaust
Stem diameter
Intake
Exhaust
Guide inside diameter
Intake and exhaust
Stem-to-guide clearance
Intake
Exhaust
Stem runout limit
Valve spring
Free length
Tilt limit
(*1)
The figures are for reference only.
6P23H11
Unit
250 R
mm (in)
mm (in)
mm (in)
mm (in)
mm (in) 46.30–46.40 (1.823–1.827)
mm (in) 45.35–45.45 (1.785–1.789)
mm (in) 35.95–36.05 (1.415–1.419)
mm (in) 24.96–24.98 (0.9826–0.9834)
mm (in)
0.20 ± 0.03 (0.008 ± 0.001)
mm (in)
0.34 ± 0.03 (0.013 ± 0.001)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in) 5.477–5.492 (0.2156–0.2162)
mm (in) 5.464–5.479 (0.2151–0.2157)
mm (in) 5.504–5.522 (0.2167–0.2174)
mm (in) 0.012–0.045 (0.0005–0.0018)
mm (in) 0.025–0.058 (0.0010–0.0023)
mm (in)
mm (in)
mm (in)
Maintenance specification
Model
250 L
2.40–2.47 (0.094–0.097)
2.30–2.70 (0.091–0.106)
0.15–0.60 (0.006–0.024)
0.04–0.13 (0.002–0.005)
0.015 (0.0006)
36.4–36.6 (1.43–1.44)
31.4–31.6 (1.24–1.24)
2.35–2.78 (0.092–0.110)
2.13–3.30 (0.084–0.130)
1.10–1.40 (0.043–0.055)
1.40–1.70 (0.055–0.067)
0.50–0.90 (0.020–0.035)
0.90–1.30 (0.035–0.051)
0.01 (0.0004)
44.2 (1.74)
1.2 (0.05)
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