SPECIFICATIONS
YDG Operation Manual
129
Engine
Notes:
1. The information described in Principal Specifications is for a “standard” generator or engine. To obtain
the information for the generator or engine installed in your driven machine, please refer to the manual
provided by the driven machine manufacturer.
2. Engine rating conditions are as follows (SAE J1349, ISO 3046/1):
• Atmospheric Condition: Room temperature 77°F (25°C), Atmospheric pressure 29.53 in Hg (100 kPa,
750 mm Hg), Relative humidity 30%
• Fuel Temperature at Fuel Injector Pump Inlet: 104°F (40°C)
• With Cooling Fan, Air Cleaner, Muffler: Yanmar Standard
• After Engine Break-In Period. Output Allowable Deviation: ± 3%
• 1 PS = 0.7355 kW
• 1 hp SAE (Society of Automotive Engineers) = 0.7457 kW
Model L48V6-GY L70V6-GY L100V6-GY
Type 4-stroke, Vertical Cylinder, Air-Cooled Diesel Engine
Output rpm
(min
-1
)
3600 3600 3600
hp SAE 4.0 5.8 8.3
kW 3.0 4.3 6.2
PS 4.1 5.9 8.4
Cylinder Bore x Stroke 2.76 x 2.24 in
(70 × 57 mm)
3.07 x 2.64 in
(78 × 67 mm)
3.39 x 2.95 in
(86 × 75 mm)
Displacement 13.4 cu. in (0.219 L) 19.5 cu. in (0.320 L) 26.5 cu. in (0.435 L)
Cooling System Forced Air-cooled System
Lubricating System Forced Lubrication
Engine Oil Capacity Dipstick
Upper
Limit
0.85 qt (0.8 L) 1.11 qt (1.05 L) 1.7 qt (1.6 L)
Dipstick
Lower
Limit
0.58 qt (0.55 L) 0.69 qt (0.65 L) 1.06 qt (1.0 L)
Starting System Electric (with recoil)
Fuel Oil Diesel Fuel
Fuel Tank Capacity 7.6 quart (7.2 L) 13.7 quarts (13.0 L) 13.7 quarts (13.0 L)
Dry Mass 71 lb (32 kg) 90 lb (41 kg) 117 lb (53 kg)
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