Description

Toyota B, 3B, 2B 1980 Repair Manual

Working on a Toyota B, 3B, 2B 1980 Repair Manual job without the factory documentation is a mistake I see too often. Guys pull torque values from some forum, guess at injection pump timing, then wonder why the head gasket leaks. This 272-page manual, printed in August 1980, is the only source for the real specs Toyota used when these engines left the assembly line. You get the same diagrams, the same tolerances, and the same safety rules that Toyota issued to its dealer techs. Nothing aftermarket comes close.

Engine Tune-Up and Service: What’s Inside

The table of contents lays out every major system. Section 2 is labeled “PUESTA A PUNTO DEL MOTOR” – that’s engine tune-up. It covers valve clearance, injection timing, and compression checks. Section 3, “SERVICIO DEL MOTOR,” walks you through disassembly and assembly. You need the SST list? That’s in the back under “SST Y ESPECIFICACIONES DE SERVICIO.” Toyota called out specific special service tools for a reason – using a pry bar where a puller is spec’d cracks housings. The manual tells you which tool, why, and how to use it.

Does This Manual Cover the EDIC System?

It does. The EDIC system is listed as a separate section in the index. That’s the electronic diesel injection control that Toyota used on these engines. If your 2B or 3B has a runaway idle or a no-shutdown issue, the factory procedure for testing the EDIC relay and actuator is in here. I’ve seen guys replace whole injection pumps because they didn’t check the EDIC circuit first. That’s a $2,000 mistake you avoid with this manual.

3 Engine Families in One Manual

This manual covers the B, 2B, and 3B diesel engines. They share the same block architecture but have different displacements, injection pumps, and cooling capacities. The manual separates the specs for each. For example, the compression pressure specification differs between the 3B and the 2B. Page numbers? The introduction starts at page 1-2 with the general repair rules – things like “always replace cotter pins and gaskets” and “disconnect the battery before electrical work.” Those rules are easy to skip, but they’re there because Toyota knew what causes comebacks.

Get the Right Torque Specs – Use a Torque Wrench

Torque values appear throughout the sections. The general repair rules on page 1-2 explicitly state: “Observe torque specifications strictly. Always use a torque wrench.” In the service section, you’ll find the head bolt tightening sequence and the final torque in Nm and ft-lbs. Don’t guess – the manual gives you the exact numbers. For the main bearing cap bolts? Listed. For the injection line nuts? Listed. If you skip torque and use a calibrated elbow, you’ll either strip threads or cause a leak. Either way, you add downtime.

Fuel System: Factory Procedures for B, 2B, 3B

Section “SISTEMA DE COMBUSTIBLE” – fuel system – is a major part of this manual. It includes the mechanical injection pump, the governor, and the fuel filter. Each engine variant has its own pump timing mark location. The manual shows you how to align the marks, how to prime the system, and how to check the charge pressure. No generic “diesel injection theory” here – this is the Toyota procedure as of August 1980.

Why OEM Documentation Beats Aftermarket

I’ve seen aftermarket manuals that claim to cover the B-series but paste in the wrong wiring diagram or skip the cab tilt procedure for the Dyna chassis. This manual includes the procedure for tilting the front cab on series DYNA – that’s on page 1-7. If you’re working on a truck, you need that step. Aftermarket reprints often omit it. This is a direct scan of the original Toyota manual, not a re-typed copy. Every page matches the factory print. You get the same abbreviations, the same symbols, and the same layout Toyota used.

Who Needs This Manual

If you own a Land Cruiser BJ40, BJ42, BJ45, BJ46, BJ60, a Coaster BB10, or a Dyna BU20/BU30, this manual applies. It’s written for technicians who have the vehicle on a lift and need to get the job done right the first time. Beginners? You’ll benefit from the step-by-step disassembly order and the diagrams. Pros? You’ll appreciate the torque tables and the SST callouts. Anyone who tries to rebuild one of these diesels without the factory specs is working blind.

Does this manual cover the 3B with a turbo?

This 1980 edition covers the naturally aspirated 3B. For turbo variants like the 13B-T, look at the later supplement: Toyota B 3B 11B 13B 13B-T Engine Repair Manual 1994.

Can I use this manual for a 2B engine in a forklift?

The 2B was used in some industrial applications, but this manual is written for the Dyna, Coaster, and Land Cruiser. The engine mechanicals are the same, but chassis-specific steps (cab tilt, transmission removal) may not match. For transmission work, refer to Manual Transmission resources. If you need a broader overview of the automotive industry context, see Automotive Industry Overview.

Other factory manuals that pair well with this one: Toyota B, 3B, 11B, 14B Engine Repair Manual and Toyota 2L-T, 3L 1990 Repair Manual – Factory OEM Supplement.

Don’t waste time on reprints or generic guides. Access the Factory Manual – the same one Toyota handed its own techs. You’ll have the specs, the torque values, and the safety rules that keep your job solid.