2GM
The Yanmar 2GM is the original two-cylinder GM-series marine diesel, 0.586 litres and rated 15 hp at 3600 rpm. It was a sailboat auxiliary of the early 1980s with a KM2A reverse gear, replaced by the 2GM20.
The 2GM is the two-cylinder engine of Yanmar's first GM series, sharing the 72 x 72 mm cylinder of the 1GM and 3GM. It is a vertical four-stroke with swirl pre-combustion chamber and direct seawater cooling by a rubber-impeller pump; a freshwater-cooled 2GMF was also built.
It was supplied with the KM2A mechanical cone-clutch reverse gear (ratios 2.21, 2.62 or 3.22:1). Around 1983 it was replaced by the 2GM20, which enlarged the bore to 75 mm and raised output to 18 hp.
Specifications
Power
- Power
- 15 hp
- Power (kW)
- 11 kW
- Rated speed
- 3600 rpm
Engine
- Configuration
- inline 2
- Cylinders
- 2
- Displacement
- 0.586 L
- Aspiration
- naturally aspirated
- Weight
- 100 kg
- Fuel
- Diesel
- Mounting
- Inboard
Reviews
No independent reviews on file yet.
Sources
- 1. Service Manual 1GM(10L), 2GM(F)(L), 3GM(D)(F)(L), 3HM(F)(L) — Yanmar (hosted by Sailboat Owners)
- 2. Yanmar 2GM Series Marine Diesel Engines — SaltWaterDiesels.com
Specifications compiled from manufacturer sources.