Toyota1977–1982Technical specifications

Hilux 1.6: Technical specifications

Workshop data for the 1.6-litre petrol (engine code 12R). Covers engine, fluids, service and torques: the figures to check before a job or a parts order.

Summary

Match the engine code (12R) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Toyota
Model: Hilux
Years: 1977–1982
Fuel: Petrol
Engine code: 12R

Performance & efficiency

Power: 49 kW (67 hp)
Engine size: 1,587 cc
Cylinders: 4 · OHV
Compression ratio: 8.5:1
Fuel system: Aisan

Fluids & capacities

Engine oil (with the filter): 3.8 litres

All 78 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHV
Capacity (Fiscal) cc	1587 (1577)
Compression ratio :1	8,5
Suitable for unleaded petrol	No
Minimum octane rating RON	91
Ignition system Type	SZ
Ignition system Description	CB
Fuel system Make	Aisan
Fuel system Description	Carb-2V

Ignition system

Ignition coil Make	Denso
Ballast resistance Ohm	1,3-1,5
Primary resistance Ohm	1,3-1,5
Distributor (ECM) Make	Denso
Distributor (ECM) No.	31021
Contact breaker gap/trigger air gap mm	0,45
Dwell angle °(%)	50-54 (56-60)

Firing order

The firing order for the Toyota Hilux 1.6 (1977–1982) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Toyota Hilux 1.6 (1977–1982) are 0,20 mm inlet and 0,36 mm exhaust, measured hot.

Valve clearance - INLET mm	0,20 hot
Valve clearance - EXHAUST mm	0,36 hot

Engine oil & fluids

Engine oil

The Toyota Hilux 1.6 (1977–1982) takes 3.8 litres of engine oil with the filter. The specified engine oil grade is SAE 20W-50 for moderate climates, with API/ACEA classification SF.

Manual gearbox

The manual gearbox has a listed capacity of 1.9 litres.

Coolant

See the reference table for the complete coolant entries and their conditions.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	Moderate climate
Engine oil grade SAE	20W-50
Engine oil classification API/ACEA	SF
Engine with filter(s) litres	3.8
Other lubricants and capacities
Manual transmission litres	1.9
Differential oil classification - rear	GL-5
Differential oil grade - rear
Differential rear litres	1.8
Cooling system - total capacity litres	8.0

Service & electrical

Ignition timing

Basic ignition timing for the Toyota Hilux 1.6 (1977–1982) is 8° BTDC at 700 rpm.

Ignition timing	Without vacuum
Ignition timing - basic BTDC °Engine/rpm	8/700

Battery

The Toyota Hilux 1.6 (1977–1982) uses a 12 V, 60 Ah battery (reserve capacity 90 minutes).

Battery V/RC(Ah)	12/90 (60)

Spark plugs

The Toyota Hilux 1.6 (1977–1982) uses NGK BPR5EA-L spark plugs with a 0,8 mm electrode gap.

Spark plugs Original equipment	NGK
Spark plug Type	BPR5EA-L
Electrode gap mm	0,8
Spark plugs Make	Bosch
Spark plug Type	WR8DC
Electrode gap mm	0,8
Spark plugs Make	Champion
Spark plug Type	RN9YCC
Electrode gap mm	0,8
Spark plugs Make	NGK
Spark plug Type	BPR5EAL
Electrode gap mm	0,8

Tuning and emissions

Ignition advance	Without vacuum and basic timing
Ignition advance checks °Engine/rpm	0-1/500
Ignition advance checks °Engine/rpm	17-19/3000
Ignition advance checks °Engine/rpm	31-33/5200
Vacuum check	Ignition timing advances
Vacuum range °Engine	10-12
Vacuum starts mbar	160
Vacuum ends mbar	372
Idle speed rpm	700
Fast idle speed - MT/AT rpm	3200
Oil temperature °C	60-80
CO level at idle speed - tailpipe Vol. % CO	0,5-2,5
HC level at idle speed ppm	400
HC level at idle - alternative ppm	-1980=500
CO2 level at idle speed Vol. % CO2	13-16
O2 level at idle speed Vol. % O2	0,5-2,0

Starting and charging

Starter motor Make	Denso
Starter motor Type	12V 0,8 kW
Maximum cranking amps A	122-149
Alternator Make	Nippon Denso
Alternator output A/V/rpm	40/14/2500
Regulated voltage V	13,8-14,8

Service checks and adjustments

Compression pressure bar	9,0-11,0
Radiator cap bar	0,90
Thermostat opens °C	82
Drive belt size - alternator mm	9,5x875
Drive belt tension - alternator/PAS/AC mm	8-12

Fuel system

Fuel pump delivery pressure bar	0,2-0,3

Tightening torques

Cylinder head bolt torque

The cylinder head bolt torque for the Toyota Hilux 1.6 (1977–1982) is 103-117 Nm.

Cylinder head
Tighten	103-117 Nm

Other engine tightening torques
Cylinder head instructions	—
Main bearings Stage 1	49-56 Nm
Main bearings Stage 2	98-112 Nm
Big end bearings Stage 1	20-25 Nm
Big end bearings Stage 2	40-50 Nm
Flywheel/driveplate	58-66 Nm
Spark plugs	15-21 Nm
Chassis tightening torques
Road wheels	90-120 Nm

Frequently asked questions

What is the firing order of the Toyota Hilux 1.6?

The firing order for the Toyota Hilux 1.6 (1977–1982) is 1-3-4-2.

What spark plugs does the Toyota Hilux 1.6 use?

The Toyota Hilux 1.6 (1977–1982) uses NGK BPR5EA-L spark plugs with a 0,8 mm electrode gap.

How much oil does the Toyota Hilux 1.6 take?

The Toyota Hilux 1.6 (1977–1982) takes 3.8 litres of engine oil with the filter. The specified engine oil grade is SAE 20W-50 for moderate climates, with API/ACEA classification SF.

What are the valve clearances for the Toyota Hilux 1.6?

Valve clearances for the Toyota Hilux 1.6 (1977–1982) are 0,20 mm inlet and 0,36 mm exhaust, measured hot.

What is the cylinder head torque for the Toyota Hilux 1.6?

The cylinder head bolt torque for the Toyota Hilux 1.6 (1977–1982) is 103-117 Nm.

What is the ignition timing for the Toyota Hilux 1.6?

Basic ignition timing for the Toyota Hilux 1.6 (1977–1982) is 8° BTDC at 700 rpm.