New Yanmar 4LV series diesels

For direct connectivity, the 4LV range has been developed alongside Yanmar’s electronic control and monitoring systems For direct connectivity, the 4LV range has been developed alongside Yanmar’s electronic control and monitoring systems
Industry Database

Yanmar, one of the world’s leading manufacturers of advanced marine diesel engines, has introduced its new series of common-rail engines.

The new 4LV series offers a range of 5 engines with outputs ranging from 150 to 250hp which will meet the requirements of many work and patrol boat installations, particularly RIBs in either single or twin engine installations

This new range of engines harnesses the very latest in electronically managed common rail fuel injection technology to fill the midsection of Yanmar’s range of clean and efficient diesels. Initially only three of the five versions will be released, the 150, 170, & 195hp units. The engines have been specifically designed to meet the rigours of small commercial craft applications.

Demonstrating what Yanmar claims are best-in-class features reflected throughout its new generation of marine diesel engines, the new 4LV range is clean, interconnective, quiet, powerful and fuel efficient. By exceeding the strict EPA Tier 3 and EU RCD Tier 2 emission regulations, the engines are said to feature ‘virtually smoke and odour free operation’.

For direct connectivity, the 4LV range has been developed alongside Yanmar’s electronic control and monitoring systems and it also connects seamlessly with NMEA or J1939 networking. This ensures the support of the latest marine technologies and allows future-proofed integration to any multifunction bridge display.

The engines incorporate the latest technology to give very low vibration and noise levels for a smooth and quiet running engine. These include a chain rather than belt drive for the camshaft, a counterbalance shaft and refined component design. The engines also feature an excellent power-to-weight ratio and the 4LV delivers a powerful low-end torque performance due to the 2.8 litre displacement which results in excellent acceleration. The digital control systems constantly monitor the engine to maximize performance and minimize fuel consumption, ensuring these are among the most fuel-efficient engines on the market.

The new engines will be available with a choice of Yanmar controls, which include the VC10 electronic control panel, which offers real time diagnostics, and the JC20 joystick system which offers precise manoeuvring.

The first three versions of the 4LV engines, the 150, 170, & 195hp units will be available as inboard models from the autumn of 2017. These engines operate at 3500rpm whist the two more powerful units, the 230 and the 250hp engines will operate at 3800rpm and will be available in both inboard and sterndrive versions in 2018.

Floris Lettinga, the Global Sales Manager at Yanmar Marine International said, “These engines have been designed for an important segment of the market. With our technical skills at the cutting edge of diesel engineering, Yanmar is now the only marine engine manufacturer to offer a full range of common rail engines from 40hp to 440hp, all with low emissions, lively performance, superb fuel efficiency and good reliability.”

By Dag Pike

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