Toyota1977–1982Technical specifications

Celica 2.0: Technical specifications

Workshop data for the 2-litre petrol (engine code 18R-G). Covers engine, fluids, service and torques: the figures to check before a job or a parts order.

Summary

Match the engine code (18R-G) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Toyota
Model: Celica
Years: 1977–1982
Fuel: Petrol
Engine code: 18R-G

Performance & efficiency

Power: 87 kW (118 hp)
Engine size: 1,968 cc
Cylinders: 4 · DOHC
Compression ratio: 9.7:1
Fuel system: Solex

Fluids & capacities

Engine oil (with the filter): 4.5 litres

All 83 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/DOHC
Capacity (Fiscal) cc	1968 (1954)
Compression ratio :1	9,7
Suitable for unleaded petrol	Yes
Minimum octane rating RON	98/95
Ignition system Type	SZ
Ignition system Description	CB
Fuel system Make	Solex
Fuel system Type	40 PHH
Fuel system Description	Carb-2V

Ignition system

Ignition coil Make	Denso
Ignition coil Type	90919-02033
Ballast resistance Ohm	1,3-1,7
Primary resistance Ohm	1,3-1,7
Distributor (ECM) Make	Denso
Contact breaker gap/trigger air gap mm	0,45
Dwell angle °(%)	50-54 (56-60)

Firing order

The firing order for the Toyota Celica 2.0 (1977–1982) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Toyota Celica 2.0 (1977–1982) are 0,30 mm inlet and 0,35 mm exhaust, measured cold.

Valve clearance - INLET mm	0,30 cold
Valve clearance - EXHAUST mm	0,35 cold

Engine oil & fluids

Engine oil

The Toyota Celica 2.0 (1977–1982) takes 4.5 litres of engine oil with the filter.

A listed engine oil option is SAE 10W-30 for moderate climates, with API/ACEA classification SE.

A listed engine oil option is SAE 20W-50 as an alternative for moderate climates.

Manual gearbox

The manual gearbox has a listed capacity of 2.7 litres. The specified oil is SAE 80W-90.

Coolant

The listed total cooling-system capacity is 9.0 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	Moderate climate
Engine oil grade SAE	10W-30
Engine oil classification API/ACEA	SE
Ambient temperature range	Moderate climate alternative
Engine oil grade SAE	20W-50
Engine with filter(s) litres	4.5
Other lubricants and capacities
Manual transmission oil grade SAE	80W-90
Manual transmission litres	2.7
Differential oil grade - rear SAE	90W
Differential rear litres	1.5
Cooling system - total capacity litres	9.0

Service & electrical

Ignition timing

Basic ignition timing for the Toyota Celica 2.0 (1977–1982) is 5° BTDC at 1000 rpm.

Ignition timing	Without vacuum
Ignition timing - basic BTDC °Engine/rpm	5/1000
Ignition timing - alternative °Engine/rpm	95=3/1000

Battery

The Toyota Celica 2.0 (1977–1982) uses a 12 V, 45 Ah battery (reserve capacity 65 minutes).

Battery V/RC(Ah)	12/65 (45)

Spark plugs

The Toyota Celica 2.0 (1977–1982) uses Denso W20EXR-U spark plugs with a 1,0 mm electrode gap.

Spark plugs Original equipment	Denso
Spark plug Type	W20EXR-U
Electrode gap mm	1,0
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	0/1200
Ignition advance checks °Engine/rpm	28/3800
Vacuum check	Ignition timing advances
Vacuum range °Engine	12
Vacuum starts mbar	107
Vacuum ends mbar	480
Idle speed rpm	1000±50
Fast idle speed - MT/AT rpm	2000
Oil temperature °C	60-80
CO level at idle speed - tailpipe Vol. % CO	0,5-1,5
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	28100/36070
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	10,0-12,0
Oil pressure bar/rpm	4,0
Radiator cap bar	0,90
Thermostat opens °C	82
Drive belt size - alternator mm	9,5x838
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 Celica 2.0 (1977–1982) is 72-88 Nm.

Cylinder head
Tighten	72-88 Nm

Other engine tightening torques
Cylinder head instructions	—
Main bearings Stage 1	50-55 Nm
Main bearings Stage 2	100-110 Nm
Big end bearings Stage 1	32-35 Nm
Big end bearings Stage 2	64-70 Nm
Flywheel/driveplate	82-88 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 Celica 2.0?

The firing order for the Toyota Celica 2.0 (1977–1982) is 1-3-4-2.

What spark plugs does the Toyota Celica 2.0 use?

The Toyota Celica 2.0 (1977–1982) uses Denso W20EXR-U spark plugs with a 1,0 mm electrode gap.

How much oil does the Toyota Celica 2.0 take?

The Toyota Celica 2.0 (1977–1982) takes 4.5 litres of engine oil with the filter. A listed engine oil option is SAE 10W-30 for moderate climates, with API/ACEA classification SE. A listed engine oil option is SAE 20W-50 as an alternative for moderate climates.

What are the valve clearances for the Toyota Celica 2.0?

Valve clearances for the Toyota Celica 2.0 (1977–1982) are 0,30 mm inlet and 0,35 mm exhaust, measured cold.

What is the cylinder head torque for the Toyota Celica 2.0?

The cylinder head bolt torque for the Toyota Celica 2.0 (1977–1982) is 72-88 Nm.

What is the ignition timing for the Toyota Celica 2.0?

Basic ignition timing for the Toyota Celica 2.0 (1977–1982) is 5° BTDC at 1000 rpm.