Yanmar Marine Diesel Engine Service Manual (Reprint) - 1GM10, 2GM20, 3GM30, 3HM35

If you own a sailboat or small trawler with one of these classic Yanmar diesels—the 1GM10, 2GM20, 3GM30, or 3HM35—you need this book.

It's a high-quality reprint of the official workshop manual, not some digital PDF.

It's printed on paper, so you can actually have it in the engine room with you, getting greasy.

It covers everything: maintenance, torque specs, overhauls, you name it.

Made in the UK.

If you're doing your own work, this is the bible for your engine.