1975–1979 Toyota Land Cruiser HJ45 / HJ47 Diesel Engine Service & Repair Manual (PN 98112E, 98154)

This Toyota factory manual set pairs the H Engine Repair Manual, Publication No. 98112E, with the Land Cruiser Chassis & Body Repair Manual, No. 98154. Together, the two PDFs cover H-series diesel engine repair plus the major Land Cruiser drivetrain, axle, steering, brake, body, and electrical systems. The depth of the overhaul, calibration, and inspection material makes this set best suited to experienced technicians and rebuilders with the measuring tools and workshop equipment these jobs require.

• 643 PDF pages total — H Engine Repair Manual No. 98112E: 231 pages; Land Cruiser Chassis & Body Repair Manual No. 98154: 412 pages.
• The H-engine volume covers tune-up work, compression and valve checks, complete internal engine disassembly, component inspection and repair, cylinder-liner service, reassembly, injection timing, and post-installation checks.
• Bosch A-type injection-pump coverage includes the feed pump, filter, nozzles, automatic timer, pump elements and delivery valves, test-bench setup, injection timing and volume adjustment, the HJ pneumatic governor, and the HU RU-type mechanical governor.
• Land Cruiser drivetrain procedures cover clutch hydraulics and clutch-unit repair, H41/H42 four-speed and J30 three-speed manual transmissions, transfer-case teardown and assembly, propeller-shaft service, and transfer-mounted parking-brake work.
• Axle and chassis sections address semi-floating and full-floating rear axle arrangements, differential setup, steering-knuckle and Birfield-joint service, free-wheel hubs, steering gear and linkage, wheel alignment, drum and disc brakes, brake boosters, the vacuum pump, and front winch/PTO overhaul.
• Body and electrical material includes model-specific frame dimensions, doors and glass, tailgate and power-window mechanisms, heaters, wipers, gauges, front-drive vacuum control, component tests, and regional wiring diagrams.

Engine and fuel-system depth

The engine manual applies to the Toyota H diesel used in Land Cruiser HJ-series and Dyna HU-series vehicles. Its tune-up section goes beyond routine service data with compression testing, valve-clearance adjustment, fuel-system bleeding, nozzle spray and opening-pressure tests, injection timing, smoke inspection, glow-system checks, and pneumatic-governor adjustment.

The overhaul chapter follows the cylinder head, combustion chambers, valve train, pistons, connecting rods, crankshaft, camshaft, timing gears, cylinder block, liners, flywheel, oil seals, and related bearings through disassembly, measurement, repair decisions, and assembly. Separate chapters handle the oil pump and filter, intake and exhaust manifolds with their venturi arrangements, water pump, thermostat, radiator, starter, HU/HJ alternators, generator regulator, glow-plug system, over-injection magnet, and battery.

Injection-pump work receives unusually deep treatment. Along with exploded component views and pump construction diagrams, the manual documents plunger and delivery-valve inspection, camshaft and tappet checks, control-rack movement, pump assembly, prestroke and injection-interval adjustment, delivery-volume calibration, governor airtightness and speed-control settings, automatic-timer advance testing, and final installation timing. Toyota identifies dedicated fixtures and tools throughout, including injection-pump tool set 09260-46011 and cylinder-liner remover/replacer 09218-46010.

One repair trap is specific to the RU governor: the manual warns that incorrect installation of the governor-gear retainer ring can let it disengage, reducing speed control and allowing engine overrun. It also treats pump elements, delivery valves, and nozzle lapped surfaces as precision parts that can be damaged or shortened in service life by dirt, improper handling, or contaminated cleaning fluid.

Land Cruiser chassis, body, and diagrams

The companion manual covers the FJ40, FJ43, FJ45, FJ55, BJ40, BJ43, and HJ45 configurations identified in its procedures, specification tables, frame charts, and electrical sheets. It includes removal, inspection, teardown, assembly, adjustment, and installation work rather than only maintenance information. Differential bearing preload, ring-and-pinion backlash and tooth contact, front-drive-shaft alignment, steering-knuckle preload, steering gear setup, clutch release adjustment, brake-booster pushrod adjustment, and brake bleeding are all represented.

Useful drawings include the H41/H42 transmission-and-transfer cutaway, Bosch A injection-pump construction and cross-sectional views, MN pneumatic-governor linkage and section views, RU governor timing and characteristic charts, HU/HJ engine electrical connection diagrams, and complete wiring diagrams for the HJ45 and Dyna RU20-30, BU20-30, JU20, and HU30 series. The chassis manual also supplies regional diagrams for FJ40/43/45, FJ55, BJ40/43, and North American FJ40/FJ55 variants.

Factory reference data is grouped into component-specific torque tables, wear limits, fits and clearances, capacities, electrical test values, adjustment standards, lubricant specifications, and special-service-tool listings. The Dyna coverage is confined to the H-engine publication; the chassis and body volume is for Land Cruiser applications.

High-pressure diesel fuel, brake systems, supported driveline assemblies, and rotating pump-test equipment present serious hazards. Use the manuals' safety notes, the specified test equipment, and appropriate lifting and support practices during repair work.