Toyota B, 3B, 11B, 13B, 13B-T Diesel Engine Service & Repair Manual (P/N RM035E)

• Toyota 338-page PDF factory engine repair manual, copyrighted 1994, for B, 3B, 11B, 13B, and 13B-T diesel engines.
• Applies to Land Cruiser, Dyna, and Coaster models in BJ60/70/71/73/74/75; BU60/61/62/63/65/70/75/76/80/81/82/85/86; BY33/42; and BB20/22/30 series.
• Covers diesel diagnosis, tune-up, compression testing, cylinder-head overhaul, timing-gear and camshaft repair, block disassembly, liner replacement, and short-block assembly.
• Details injection nozzles, the fuel filter and feed pump, automatic timer, and inline injection-pump repair, including governor work, pump-body inspection, test-bench adjustment, high-altitude compensator setup, and 13B-T boost-compensator adjustment.
• Includes 13B-T turbocharger diagnosis, impeller checks, removal and installation, oil- and coolant-line service, and indicator/warning-light fault tracing.
• Provides cooling, lubrication, pre-heating, EDIC, starter, alternator, and charging-system procedures with component views, system circuits, diagnostic charts, specifications, and SST/SSM data.

Mechanical System Overview

This publication is built around mechanical repair rather than routine maintenance alone. It begins with symptom-based diesel diagnosis and tune-up, then separates compression checks for B/3B engines from those used on the 11B, 13B, and 13B-T. Valve-clearance, injection-timing, idle-speed, maximum-speed, and intake-restriction work lead into major component service.

The cylinder-head chapter covers removal, disassembly, cleaning, inspection, repair, reassembly, and installation, including valves, guides, seats, springs, the rocker shaft, push rods, manifolds, and head-flatness checks. Timing coverage handles the gear train, automatic timer, camshaft, idle gears, backlash and thrust inspection, and front oil-seal replacement. Block work reaches connecting-rod and main bearings, pistons and rings, rod bushings, pressed cylinder liners and boring, crankshaft and camshaft bearings, the rear oil seal, and complete assembly.

Fuel-Injection and Turbocharger Coverage

The 101-page fuel section separates nozzle procedures for B/3B engines from the 11B/13B/13B-T group, then covers the feed pump and automatic timer before devoting most of its space to the inline injection pump.

Pump coverage extends through the B/3B and 11B/13B/13B-T governor arrangements, pump-body disassembly, precision-part inspection, bearing and seal replacement, reassembly, pre-stroke and injection-interval adjustment, delivery-volume testing, governor setup, high-altitude compensator work, and 13B-T boost-compensator adjustment. Toyota states that injection-pump repair requires considerable skill and a special test bench—an important equipment requirement for anyone planning this work.

For the 13B-T, the manual addresses boost diagnosis, intake and exhaust leaks, impeller rotation and axial play, oil and coolant plumbing, and turbocharger removal and installation. A separate chart traces the green indicator and amber warning-light circuits through the turbo pressure switches and combination meter.

Technical Preview and Specifications

Cooling and lubrication repair covers coolant service, water-pump overhaul, thermostat and radiator testing, oil-pressure diagnosis, oil-pump service, the oil cooler and relief valve, and the 3B/13B-T oil-nozzle and check-valve system.

Electrical sections distinguish B/3B super-glow and fixed-delay systems from the intake-heater system used with the 11B, 13B, and 13B-T. They also cover model-specific starter relays and EDIC-equipped B/3B applications, along with non-EDIC fuel-cut and overinjection controls. Starter and charging coverage includes starter overhaul and performance testing, alternators with or without IC regulators, charge-light relays, and the BJ60 ignition main relay.

Key references include the 3B diesel electrical diagnosis flow, 11B/13B/13B-T intake-heater diagnosis, the 13B-T turbo indicator chart, pre-heating timer characteristic diagrams, injection-pump governor characteristic charts, and model-specific charging circuits.

The specification appendix consolidates torque data, capacities, clearances, wear limits, injection-pump calibration, and starter and alternator test values. Toyota SST listings identify tools by part number, including injection-pump stand 09241-76022, cylinder-compression gauge set 09992-00023, and 13B-T turbocharger pressure gauge 09992-00241.

Scope and Repair Notes

This engine manual does not replace a complete vehicle workshop or wiring manual. Transmission, axle, brake, chassis, body, and full vehicle electrical procedures are outside its scope. Block overhaul begins with the engine prepared for stand disassembly rather than covering vehicle-level engine removal.

Bearing shells and thrust washers must be installed with the specified oil-hole and groove orientation; reversal can restrict lubrication and damage the crankshaft bearings. Injection-pump plungers and delivery valves are precision-matched, so contamination, contact with their sliding surfaces, or mixed assembly order can score parts and upset calibration.

Verify lifting and engine-stand equipment before internal engine repair, and isolate the battery before starting- or charging-system work.