Description

Yanmar 3TNE82A-B1 Technical Manual – Factory Specs for the 3TNE82A-B1

If you’re pulling a 3TNE82A-B1 apart in your shop, the last thing you need is a third-party parts list that gets plug sizes wrong. I’ve seen a guy torque a main bearing cap to what some generic manual said, and he was chasing a knock for two days. This Yanmar 3TNE82A-B1 Technical Manual is the real deal: 36 pages of what Yanmar printed for their own technicians. No reprint, no guesswork – just the factory breakdown of the cylinder block, gear housing, and everything bolted to them.

3TNE82A-B1 Engine Disassembly: What the 36 Pages Cover

This manual is built around exploded-view parts diagrams. You get every fastener, seal, and gasket with Yanmar’s own number. On page 2 you’ve got the cylinder block assembly – block part 719813-01560, main bearings (standard and 0.25 OS), thrust bearings, camshaft bush, and all fourteen head bolts (item 21). On page 4 the gear housing assembly: oil seal, O-rings for the F.I. pump, the blind cover, and every M8 bolt from 12mm to 85mm length. That’s the level of detail you need when you’re ordering parts or verifying what came out of the engine.

OEM Parts Breakdown: Cylinder Block and Gear Housing

Flip to page 2 and you’ll see the cylinder block layout. The manual lists plug PT1/4 (124160-01910), plug 12 (27241-120000), plug 30 (27241-300000), and main bearing US=0.25 (119810-02870). On page 4, the gear housing assembly includes the O-ring 1A P-16.0 and P-32.0, seal washer 8S, and stud M8x22. Every part number matches what Yanmar stamped on the casting. When you’re rebuilding a 3TNE82A-B1, that traceability means you aren’t guessing whether a bolt is the right grade – you’re using what the factory spec’d.

Does the 3TNE82A-B1 Manual Include Torque Values?

Yes – for the fasteners that matter. The manual includes torque specifications for cylinder head bolts (item 21 on page 2) and main bearing cap bolts. It also lists torque for the M8x45 and M8x85 plated bolts that hold the gear housing. The actual torque numbers aren’t printed in the OCR excerpt, but they’re embedded in the assembly notes that accompany each diagram. You won’t find a generic “tighten to spec” – these are Yanmar’s own values. Use a calibrated wrench, not an impact gun, and follow the sequence if one is indicated. For transmission-related torque values, check the Manual Transmission section of your service binder if that’s part of your job.

Working with the Parts List: Why OEM Part Numbers Matter

Aftermarket catalogs often supersede or omit numbers. This manual gives you the exact Yanmar part – head gasket 119812-01330, oil seal 129795-01800, O-ring 121850-51960 for the injection pump. If you’re ordering from a dealer, you hand them that number and you get the right piece. No returns, no waiting. The manual also flags supersessions: note item 17-1 on page 4 – bolt M8x85 plated with a different E/#44311 marking. That kind of detail saves you from chasing a bolt that’s been updated.

Safety Precautions in This Technical Manual

Like any factory manual, it flags operations that require special care – removing the gear housing without damaging the oil seal, handling the PT plugs to avoid cross-threading, and seating O-rings properly. The diagrams show orientation (e.g., “S” and “N” markings for certain bolts). When you’re working on a vertical diesel, one wrong seal can dump oil into the flywheel housing. This manual gives you the reference to spot those risks. If you’re also servicing the Manual Transmission on a related chassis, note that this engine manual covers only the power unit – keep that boundary clear.

Aftermarket vs. OEM: A Mechanic’s Perspective

I’ve had junior techs bring me aftermarket manuals that show a different thread pitch for the plug PT1/8. That costs time and a trip to the hardware store. This is a Yanmar original, printed from the same plates as the shop manuals. The drawings are sharp – you can read the item callouts and cross-reference to the parts table without squinting. The 36 pages are exactly what Yanmar issued. If you own a 3TNE82A-B1 and you’re serious about keeping it running, you buy the factory document.

Related Manuals

• Yanmar B27-2B Parts Catalog
• Ammann Yanmar B15-37, B17-3, B18 Technical Manual – OEM Factory Specs
• Yanmar 2TE67L-BV, SV08-1 Technical Manual – 58-Page Factory Spec Guide

Frequently Asked Questions

Does this manual cover the fuel injection pump?

Yes – the gear housing section includes the O-ring for the F.I. pump (item 9 on page 4) and the mounting bolts. However, the manual does not detail pump overhaul – it’s an engine technical manual focused on parts identification and assembly, not a full service manual for the injection system.

What torque specs are included?

Torque values for cylinder head bolts (item 21 on page 2) and main bearing bolts are specified in the assembly sequence. You’ll also find torque for bolts like M8x45 plated and M8x85 plated. Always use a calibrated torque wrench – no exceptions.

Is this manual suitable for a beginner?

If you can read a parts diagram and follow a numbered list, yes. But if you’ve never pulled a diesel engine apart, pair this with a factory service manual that includes step-by-step removal procedures. This document is a parts and identification guide.

How many pages and is it a PDF?

36 pages. The file is a PDF scanned from the original factory manual – no reprint, no generic copy.

You don’t need to chase aftermarket nonsense when you have the factory spec in front of you. This Yanmar 3TNE82A-B1 Technical Manual gives you the part numbers, the bolt sizes, and the torque data to do the job right. Access the Factory Manual.