Engine Specifications; Product Explanation - Yanmar 2GM20(F)(V)(C) Operation Manual

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2. Product explanation
2.2 Engine Specifications
2.2.1 Direct Seawater Cooling Type, GM series
I
Engine Model _ _ _ _ _
~
- -- - -
2GM20
Vert•cal4·cycle
- +--------
I
3GM30
water cooled diesel engine
CombuStiOn system
------------4---------+-----
combustion chamber Swart pre-
Number of cylinders
Bore x stroke
mm (ln .)
Displacement
(!;u.m.)
OutpuVcrankshaft
kW/rpm
speed
IHP/mml
Continuous
Brake mean
kg/em
rating output effectiVe pressure
(lb./in.
1
Piston speed
m/sec.
(ft./sec.\
OutpuVcrankshaft
kW/rpm
One hour
speed
HP/rR.m
rating output
Brake mean
kg/em
effective pressure
~
lb./in.)
Piston speed
m/sec.
(11./sec.)
Compression ratio
Fuel injection tim1ng (b.T.D.C.)
Fuel injection pressure
kg/em
jlb.lin )
Main power take off
- -- -- - -
Front power take off
-----
Direction of Crankshaft
rotation Propeller shaft (Ahead)
~--~---
Cooling system
------
Lubrication system
~-'-'---
Startang
system
Marine gear
system
Type
Starting motor
AC generator
Model
Type
Reduction
ratio
Forward
Reverse
---.------
Forward rpm
~;_:_:=--j--
Propeller
speed
Reverse
Lubricating oaf capacity
Weight
rpm
(cu.an.)
kg (lb.)
2
+-------
75
X
3
72 (2.95
X
2.83)
0.636 (38.81)
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0 954 (58.21)
11.8/3400
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17
7/3400
(16.0/3400) (24 1/3400)
6.66
(94.7 1)
8.16
(26.77)
13.4/3600 20.1/3600
(18.2/3600)
(27.313600)
7.07
(100.54)
8.64
(28.35)
23.0
15±1 18±1
-
170:5
(234 7 - 2489)
at Flywheel side
shaft V-pulley side
kwise viewed from stem
e viewed from stern
at Crank
Counter-cloc
Clockwis
Dttect seawater cooll
Complete enc
Elec
DC
ng _(rubber Impeller water pump)
Josed forced lubncauon
tnc and manual
12V, 1.0kW
12V. SSA
KM2P
1
KM3P
e clutch with single stage
ahead and astern
.22 2.21 2.62
I
3.20
.06
3.06 3.06
3.16
1540 1298 1063
113
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1113 1113 1076
0.3 (18.31}
0. 35(21 .36)
10.3 (22.71) 11.5(25.361
Overalllenglh
-----
mm (in.)
mm
(ln.)
mm Qn.)
735
(28.9)
740(29 13)
...;_
Dimensions
Overall width
455 (17.91)
455(11.91)
Overall height 495 (1950)
~95(19
5())
2.6 (158 65)
2.6(15865l
1.6 (97.63) 161'3763)
129 (283.8) 1301280)
9