Item
Unit
Model
F15BMH
F15BM
Power unit
Minimum compression
kPa
765 (7.8, 111)
pressure (*1)
(kgf/cm
2
, psi)
Lubrication oil pressure (*2)
kPa
330 (3.36, 48)
at idle speed
(kgf/cm
2
, psi)
Cylinder head
Warpage limit
mm (in)
0.10 (0.0039)
(lines indicate straightedge
position)
Camshaft journal inside diameter
mm (in)
35.000–35.012 (1.3780–1.3784)
Cylinder
Bore size
mm (in)
59.000–59.015 (2.3228–2.3234)
Wear limit
mm (in)
59.1 (2.33)
Taper limit
mm (in)
0.08 (0.0032)
Out-of-round limit
mm (in)
0.05 (0.0020)
Pistons
Piston diameter (D)
mm (in)
58.950–58.965 (2.3209–2.3215)
Measuring point (H)
mm (in)
5.0 (0.20)
Piston-to-cylinder clearance
mm (in)
0.035–0.065 (0.0014–0.0026)
Piston pin boss bore
mm (in)
14.004–14.015 (0.5513–0.5518)
Oversize piston diameter
1 st
mm (in)
59.2 (2.33)
2 nd
mm (in)
59.5 (2.34)
Piston pins
Outside diameter
mm (in)
13.996–14.000 (0.5510–0.5512)
Piston rings
Top ring
Dimension B
mm (in)
1.17–1.19 (0.0461–0.0469)
Dimension T
mm (in)
2.00–2.20 (0.0787–0.0866)
End gap
mm (in)
0.15–0.30 (0.0059–0.0118)
Side clearance
mm (in)
0.04–0.08 (0.0016–0.0032)
Over size
1 st
mm (in)
59.25 (2.33)
2 nd
mm (in)
59.50 (2.34)
SPEC
2-3
6D45F11
Specifications
Maintenance specifications
Power unit
(*1) Measuring conditions:
Ambient temperature 20°C (68°F), wide open throttle, with spark plugs removed from all cylinders.
The figures are for reference only.
Since this outboard motor is equipped with an automatic decompression mechanism, accurate data may be difficult
to obtain due to differences in the way the starter rope is pulled.
(*2)
The figures are for reference only.
6D45F11-02 03.10.9 20:42 Page 4
