Yanmar 2YM15 - 13 Service Standards; Engine Tuning

13. Service standards
201R1
13. Service standards
13.1 Engine tuning
No. Inspection item Standard Limit
Reference
page
1
Intake/exhaust valve clearance
mm
0.15-0.25 - 2.2.2(5)
2
V-belt tension
at 98N (10kgf)
mm
Between alternator
and F.W. pump
Used part 8-10 -
2.2.2(4)
New part 6-8 -
3
Fuel injection pressure
MPa (kgf/cm
2
)
12.3-13.28
(125-135)
- 2.2.7(2)
4
Compression pressure (at 250 min
-1
)
MPa (kgf/cm
2
)
3YM30
3.43±0.1
(35±1)
2.75±0.1
(28±1)
3.4
3YM20
2YM15
3.23±0.1
(33±1)
2.55±0.1
(26±1)
5
Cooling water Capacity
Liter (quart)
Engine
3YM30 4.9 (5.2) -
2.2.1(5)
3YM20 4.1 (4.3) -
2YM15 3.0 (3.2)
Coolant recovery tank 0.8 (0.8) -
6 Lube oil capacity (full)
3YM30 Liter (quart)
(at rake angle 8 degree)
2.8
0
/
-0.2
(3.0)
-
2.2.2.(2)
2.2.2.(3)
3YM20 Liter (quart)
(at rake angle 8 degree)
2.7
0
/
-0.2
(2.9)
-
2YM15 Liter (quart)
(at rake angle 8 degree)
2.0
0
/
-0.2
(2.1)
-
Marine gear KM2P-1
Liter (pint)
0.30 (0.64) -
3YM30C Liter (quart)
(at rake angle 0 degree)
2.5
0
/
-0.2
(2.6)
-
3YM20C Liter (quart)
(at rake angle 0 degree)
2.4
0
/
-0.2
(2.5)
-
2YM15C Liter (quart)
(at rake angle 0 degree)
1.8
0
/
-0.2
(1.9)
-
Sail drive SD20
Liter (pint)
2.2 (4.7) -
7
Lubricating oil pressure
MPa (kgf/cm
2
)
at rated speed
0.29-0.44
(3.0-4.5)
--
at low idle speed
0.06(0.6)
or above
- 8.2.5
8
Oil pressure switch operating pressure
MPa (kgf/cm
2
)
0.05±0.01
(0.5±0.1)
- 12.7.1
9Thermostat
valve opening
temperature
deg. C
69.5-72.5 -
2.5
Full opening lift (mm)
(temperature)
8 or above
(85 deg. C)
-
10
Thermo switch actuating temperature
(deg. C)
ON 93-97 -
2.4.2
12.7.2