3YM30
The Yanmar 3YM30 is the original 1.115-litre naturally aspirated three-cylinder marine diesel of the YM series, rated 29 mhp (21.3 kW) at 3600 rpm. It is a sailboat auxiliary, sold with a KM2P-1 gear for shaft drive or with an SD20 saildrive, and was superseded by the larger-displacement 3YM30AE.
The 3YM30 launched with the 3YM20 in 2004 and took over from the GM-series 3GM30 as Yanmar's roughly 30 hp auxiliary. It uses a 76 x 82 mm bore and stroke (1.115 L), swirl pre-combustion chamber, in-line injection pump and freshwater cooling via a heat exchanger. Yanmar offered it with the KM2P-1 mechanical cone-clutch reverse gear for a shaft or coupled to the SD20 saildrive (the saildrive version is often referred to as 3YM30C).
An emissions-revised 3YM30E with the same bore, stroke and rating was certified for the US in 2013. From model year 2014 Yanmar's YM line moved to the 3YM30AE, a different 1.266-litre engine rated at 3200 rpm, which is recorded as a separate row.
Specifications
Power
- Power
- 29 hp
- Power (kW)
- 21 kW
- Rated speed
- 3600 rpm
Engine
- Configuration
- inline 3
- Cylinders
- 3
- Displacement
- 1.115 L
- Aspiration
- naturally aspirated
- Weight
- 133 kg
- Fuel
- Diesel
- Mounting
- Inboard
Reviews
No independent reviews on file yet.
Sources
- 1. YM Series Operation Manual 0AYMM-EN0023: 2YM15, 3YM20, 3YM30AE, 3YM30E, 3YM30 — Yanmar
- 2. YM Series Operation Manual P/N 0AYMM-G00200 (2009): 2YM15, 3YM20, 3YM30 — Yanmar Marine International (hosted by J/109 class)
- 3. Operation Manual 2YM15/3YM20/3YM30 (early edition) — Yanmar (hosted by J/30 class)
- 4. Service Manual M9961-03E101 3YM30/3YM20/2YM15 (new edition March 2004, R1 April 2005) — Yanmar (hosted by J/109 class)
Specifications compiled from manufacturer sources.