Toyota1984–1987Technical specifications

Corolla 1.6 Coupe GT: Technical specifications

Workshop data for the 1.6-litre petrol (engine code 4A-GE). Covers engine, fluids, service, torques and air conditioning: the figures to check before a job or a parts order.

Summary

Match the engine code (4A-GE) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Toyota
Model: Corolla
Years: 1984–1987
Fuel: Petrol
Engine code: 4A-GE

Performance & efficiency

Power: 91 kW (124 hp)
Engine size: 1,587 cc
Cylinders: 4 · DOHC
Compression ratio: 10.0:1
Fuel system: Toyota

Fluids & capacities

Engine oil (with the filter): 3.3 litres

All 108 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/DOHC
Capacity (Fiscal) cc	1587 (1577)
Compression ratio :1	10,0
Suitable for unleaded petrol	Yes
Minimum octane rating RON	98/95
Ignition system Type	ESA
Ignition system Description	Map-i
Trigger location	Distributor
Fuel system Make	Toyota
Fuel system Type	TCCS
Fuel system Description	MFI-i
Air metering Type	MAP
Combined ignition and fuel ECM	Yes
Diagnostic socket	Yes

Ignition system

Ignition coil Make	Denso
Ignition coil supply voltage + with ballast V	11,0
Primary resistance Ohm	0,5-0,7
Secondary resistance Ohm	11000-16000
Distributor (ECM) Make	Denso
Contact breaker gap/trigger air gap mm	0,2-0,4

Firing order

The firing order for the Toyota Corolla 1.6 Coupe GT (1984–1987) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Toyota Corolla 1.6 Coupe GT (1984–1987) are 0,15-0,25 mm inlet and 0,20-0,30 mm exhaust, measured cold.

Valve clearance - INLET mm	0,15-0,25 cold
Valve clearance - EXHAUST mm	0,20-0,30 cold

Engine oil & fluids

Engine oil

The Toyota Corolla 1.6 Coupe GT (1984–1987) takes 3.3 litres of engine oil with the filter.

See the reference table for the complete engine oil entries and their conditions.

Manual gearbox

The manual gearbox has a listed capacity of 2.5 litres. The specified oil is SAE 80W-90.

Coolant

The listed total cooling-system capacity is 5.6 litres.

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	➞10°C
Engine oil grade SAE	5W-30
Engine oil classification API/ACEA	SG/A1
Ambient temperature range	-18°C➞
Engine oil grade SAE	10W-30, 10W-40, 10W-50
Engine oil classification API/ACEA	SG/A1
Ambient temperature range	-12°C➞
Engine oil grade SAE	20W-40, 20W-50
Engine oil classification API/ACEA	SG/A1
Engine with filter(s) litres	3.3
Other lubricants and capacities
Manual transmission oil grade SAE	80W-90
Manual transmission litres	2.5
Differential oil grade - rear SAE	90W
Differential rear litres	1,0 LSD=1,3
Coolant Type	Ethylene glycol
Cooling system - total capacity litres	5.6
Brake fluid Type	DOT 3
Clutch fluid Type	DOT 3

Service & electrical

Ignition timing

Basic ignition timing for the Toyota Corolla 1.6 Coupe GT (1984–1987) is 10° BTDC at 800 rpm.

Ignition timing
Ignition timing - basic BTDC °Engine/rpm	10/800
Ignition timing - alternative °Engine/rpm	95=8/800

Spark plugs

The Toyota Corolla 1.6 Coupe GT (1984–1987) uses NGK BCPR6EY-11 spark plugs with a 1,1 mm electrode gap.

Spark plugs Original equipment	NGK
Spark plug Type	BCPR6EY-11
Electrode gap mm	1,1
Spark plugs Make	Bosch
Spark plug Type	FR8DCX
Electrode gap mm	1,1
Spark plugs Make	Champion
Spark plug Type	RC9YCC4
Electrode gap mm	1,1
Spark plugs Make	NGK
Spark plug Type	BCPR6EY-11
Electrode gap mm	1,1

Tuning and emissions

Ignition timing
Tuning conditions	—
View more information	—
Ignition advance checks °Engine/rpm	ECM Controlled
Idle speed rpm	800±50
Fast idle speed - MT/AT rpm	2800-3200
Oil temperature °C	60-80
CO level at idle speed - tailpipe Vol. % CO	1,5±0,5
HC level at idle speed ppm	300
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 1,0 kW
Minimum starting voltage V	10,5
Alternator Make	Nippon Denso
Alternator output A/V/rpm	60/13,5/2500
Regulated voltage V	13,5-15,1

Service checks and adjustments

Compression pressure bar	9,0-12,7
Oil pressure bar/rpm	3,0/5000
Radiator cap bar	0,75-1,05
Thermostat opens °C	80-84
Drive belt size - alternator mm	5PKx970
Drive belt tension - alternator/PAS/AC mm	6-7

Fuel system

System pressure bar	2,3-2,8
Regulated pressure with vacuum bar	2,0
Engine coolant temperature (ECT) sensor Ohm/°C	200-400/80
Injector Ohm	1,0-2,5

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Toyota Corolla 1.6 Coupe GT (1984–1987) are tightened in 2 stages: 25 Nm, then a final 45 Nm.

Cylinder head
Renew bolts	No
Tighten	25 Nm
Tighten	45 Nm
Tighten	60±4 Nm

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	30 Nm
Main bearings Stage 2	60±4 Nm
Big end bearings Renew bolts/nuts	No
Big end bearings Stage 1	24 Nm
Big end bearings Stage 2	49±3 Nm
Sump bolts	6 Nm
Sump drain bolt	34 Nm
Flywheel/driveplate	74±4 Nm
Clutch pressure plate	19 Nm
Crankshaft pulley/damper centre bolt	119±8 Nm
Camshaft sprocket/gear	47±6 Nm
Camshaft carrier/cap	13 Nm
Inlet manifold to cylinder head	22±2 Nm
Exhaust manifold to cylinder head	25±2 Nm
Spark plugs	18±2 Nm
Fuel rail	18 Nm
Chassis tightening torques
Road wheels	103 Nm

Air conditioning

No. of AC service connectors	2
Air conditioning restrictor type	Expansion valve
Compressor clutch/magnetic coupling	Yes
Compressor variable displacement solenoid	No
Air conditioning refrigerant Type	R12
Air conditioning refrigerant quantity grams	700±50
Air conditioning oil Type	Dens Oil 6

Frequently asked questions

What is the firing order of the Toyota Corolla 1.6 Coupe GT?

The firing order for the Toyota Corolla 1.6 Coupe GT (1984–1987) is 1-3-4-2.

What spark plugs does the Toyota Corolla 1.6 Coupe GT use?

The Toyota Corolla 1.6 Coupe GT (1984–1987) uses NGK BCPR6EY-11 spark plugs with a 1,1 mm electrode gap.

How much oil does the Toyota Corolla 1.6 Coupe GT take?

The Toyota Corolla 1.6 Coupe GT (1984–1987) takes 3.3 litres of engine oil with the filter. See the reference table for the complete engine oil entries and their conditions.

What are the valve clearances for the Toyota Corolla 1.6 Coupe GT?

Valve clearances for the Toyota Corolla 1.6 Coupe GT (1984–1987) are 0,15-0,25 mm inlet and 0,20-0,30 mm exhaust, measured cold.

What is the cylinder head torque for the Toyota Corolla 1.6 Coupe GT?

The cylinder head bolts on the Toyota Corolla 1.6 Coupe GT (1984–1987) are tightened in 2 stages: 25 Nm, then a final 45 Nm.

What is the ignition timing for the Toyota Corolla 1.6 Coupe GT?

Basic ignition timing for the Toyota Corolla 1.6 Coupe GT (1984–1987) is 10° BTDC at 800 rpm.