Yanmar type3YM20

The Powerful Gem

Configuration

4-stroke, vertical, water cooled marine diesel engine

Maximum output at crankshaft

* 16.2 kW (22 mhp) / 3600 rpm ** 15.3 kW (21 mhp) / 3600 rpm

Continuous rating output at crankshaft

14.7 kW (20 mhp) / 3489 rpm

Displacement

0.854 L (52.1 cu in)

Bore x stroke

70 mm x 74 mm (2.8 in x 2.9 in)

Cylinders

Combustion system

Indirect injection

Aspiration

Natural aspiration

Starting system

Electric starting 12 V - 1.4 kW

Alternator

12 V - 60 A

Cooling system

Fresh water cooling with heat exchanger

Lubrication system

Enclosed, forced lubricating system

Direction of rotation (crankshaft)

Counter clockwise viewed from stern

Dry weight without gear

120 kg (266 lbs)

Environmental

Meets the comprehensive emissions regulations introduced in EU and US (Tier II) in 2006

Engine mounting

Rubber type flexible mounts
NOTE: Fuel condition: Density at 15°C = 0.84 g/cm 3 ; 1kW = 1.3596 mhp = 1.3410 HP *Fuel temperature 25°C at the inlet of the fuel injection boat pump (ISO 3046-1) **Fuel temperature 40°C at the inlet of the fuel injection pump (ISO 8665)Technical data is according to ISO 8665 / 3046

Dimensions

(For detailed line-drawings, please refer to our web-site: www.yanmarmarine.com or contact your supplier) 463 mm (18.2 in)

Front viewRight side view

Optional u-mixing elbow 528 mm (20.8 in) 600.3 mm (23.6 in) optional u-mixing elbow max. 116 mm (4.6 in)min. 102 mm (4.0 in) 178.5 mm (7.0 in)336 mm (13.2 in)178.5 mm (7.0 in) Exhaust pipeo 51 mm (2.0 in) 115 mm (4.5 in) 370 mm (14.6 in) 215 mm (8.5 in)248 mm (9.7 in) 693.5 mm (27.3 in) 3YM20 w/ KM2P-1 marine gear