Yanmar Marine 2QM20, 2QM20H,3QM30, 3QM30H diesel engine repair manual
To make it easier for you to choose the right manual, we have compiled various information for you below, such as model designations, types, and production years.
Repair your diesel engine - Purchase/Get this PDF: Yanmar Marine manual.
This manual applies to the following models:
Yanmar Co., Ltd Marine Diesel Engine 2QM20
Yanmar Co., Ltd Marine Diesel Engine 2QM20H
Yanmar Co., Ltd Marine Diesel Engine 3QM30H
Yanmar Co., Ltd Marine Diesel Engine 3QM30(H)
2QM20: 0001 and up
2QM20H: 00101 and up
3QM30: 0001 and up
3QM30H: 00101 and up
Manual Language: English
Delivery: Download link will appear on the checkout page after your payment is complete.
"Get Your Yanmar Marine Diesel Engine Parts Catalog and Owner's Manual PDF Today!"
If you own a Yanmar Marine 2QM20, 2QM20H, 3QM30, or 3QM30H diesel engine, it's essential to have the right tools and resources to maintain and repair it. One of the most important resources is the parts catalog and owner's manual. With the help of these documents, you can easily find the parts you need, perform repairs, and keep your engine running smoothly. In this article, we will provide you with a list of engine specs/tech specs for these engines and information on how to download the parts catalog and owner's manual.
Engine Specs/Tech Specs:
• Engine Type: Four-Stroke, Vertical Water-Cooled Diesel
• Number of Cylinders: 2 or 3
• Bore x Stroke: 75mm x 72mm (2QM20, 2QM20H), 80mm x 84mm (3QM30, 3QM30H)
• Displacement: 0.64L (2QM20), 0.82L (3QM30)
• Compression Ratio: 21:1 (2QM20, 2QM20H), 22:1 (3QM30, 3QM30H)
• Horsepower: 20 (2QM20, 2QM20H), 30 (3QM30, 3QM30H)
• Fuel Type: Diesel
• Fuel System: Indirect Injection
• Lubrication System: Forced Lubrication by Gear Pump
• Cooling System: Water-Cooled with Freshwater Heat Exchanger
• Electrical System: 12V, 40A Alternator
• Starting System: Electric Starter
• Idle Speed: 900 RPM (2QM20, 2QM20H), 750 RPM (3QM30, 3QM30H)
• Maximum RPM: 3600 RPM (2QM20, 2QM20H), 3300 RPM (3QM30, 3QM30H)
• Dry Weight: 204 lbs (93 kg) (2QM20), 308 lbs (140 kg) (3QM30)
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