Yanmar 2QM20(H)/3QM30(H) Marine Diesel Engines OEM Service & Repair Manual

Yanmar 2QM20(H)/3QM30(H) Marine Diesel Engines OEM Service & Repair Manual

Models covered:

• Yanmar 2QM20(H)
• Yanmar 3QM30(H)

This OEM service and repair manual for Yanmar 2QM20(H) and 3QM30(H) marine diesel engines offers comprehensive technical guidance for proper maintenance, troubleshooting, and repairs. Designed to meet factory standards, it provides step-by-step procedures, factory-recommended service intervals, and detailed diagnostics to ensure reliable engine performance in marine environments.

The manual covers critical systems, including fuel injection, cooling, lubrication, and electrical components. It also features factory-authorized wiring diagrams, torque specifications, and exploded parts views to assist with both routine servicing and complex mechanical repairs. Whether you’re overhauling the engine or performing regular maintenance, this guide ensures accurate and efficient work.

Available in a digital format for quick and easy access, the manual can be viewed on computers and mobile devices, making it suitable for onboard use or workshop repairs. It’s an essential resource for marine technicians and boat owners maintaining Yanmar 2QM20(H) and 3QM30(H) engines.

Printable: Yes
Language: English
Compatibility: Pretty much any electronic device, incl. PC & Mac computers, Android and Apple smartphones & tablet, etc.
Requirements: Adobe Reader (free)