Maintenance Specification; Power Unit - SELVA MARINE Wahoo 15 Service Manual

SPEC

Maintenance specification

Power unit

Item
Power unit
Minimum compression
(*1)
pressure
(*2)
Oil pressure
Cylinder head
Warpage limit
(lines indicate straightedge
position)
Cylinder head journal inside
diameter (A)
Cylinder head journal inside
diameter (B)
A
B
Camshaft
Intake (A)
Exhaust (A)
Intake and
exhaust (B)
(*1)
Measuring conditions:
Ambient temperature 20 °C (68 °F), wide open throttle, with spark plugs removed from all cylinders.
Since this outboard motor is equipped with an automatic decompression mechanism, the compression
pressure may vary depending on the speed at which the starter handle is pulled when using the manual
starter to crank the engine. (Manual starter model)
The figures are for reference only.
(*2)
For details of the checking method, see "Checking the oil pressure" (5-1).
The figures are for reference only.
2-7
Specification
Unit
kPa
(kgf/cm
kPa
(kgf/cm
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
15M
730
2
, psi) (7.3,
105.9)
400 (4.0, 58.0) at engine idle speed
2
, psi)
22.000–22.021 (0.8661–0.8670)
34.000–34.025 (1.3386–1.3396)
28.546–28.646 (1.1239–1.1278)
28.582–28.682 (1.1253–1.1292)
23.95–24.05 (0.9429–0.9468)
Model
15E.B. 20M
860 730
(8.6, (7.3,
124.7) 105.9)
0.10 (0.0039)
2
2
20EBT
860
(8.6,
124.7)
6AG3J11