Honda1973–1978Technical specifications

Civic 1.2: Technical specifications

Workshop data for the 1.2-litre petrol (engine code EB2). Covers engine, fluids, service and torques: the figures to check before a job or a parts order.

Summary

Match the engine code (EB2) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Honda
Model: Civic
Years: 1973–1978
Fuel: Petrol
Engine code: EB2

Performance & efficiency

Power: 40 kW (54 hp)
Engine size: 1,238 cc
Cylinders: 4 · OHC
Compression ratio: 8.1:1
Fuel system: Keihin

Fluids & capacities

Engine oil (with the filter): 3.0 litres

All 87 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHC
Capacity (Fiscal) cc	1238
Compression ratio :1	8,1
Suitable for unleaded petrol	No
Minimum octane rating RON	91
Ignition system Type	SZ
Ignition system Description	CB
Fuel system Make	Keihin
Fuel system Type	DCG 306
Fuel system Description	Carb-2V

Ignition system

Ignition coil Make	Denso
Primary resistance Ohm	3,43-4,19
Distributor (ECM) Make	Denso
Contact breaker gap/trigger air gap mm	0,4-0,5
Dwell angle °(%)	49-55 (54-61)

Firing order

The firing order for the Honda Civic 1.2 (1973–1978) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Honda Civic 1.2 (1973–1978) are 0,14 mm inlet and 0,14 mm exhaust, measured cold.

Valve clearance - INLET mm	0,14 cold
Valve clearance - EXHAUST mm	0,14 cold

Engine oil & fluids

Engine oil

The Honda Civic 1.2 (1973–1978) takes 3.0 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.

Coolant

The listed total cooling-system capacity is 4.5 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	➞0°C
Engine oil grade SAE	5W-30
Engine oil classification API/ACEA	SG/A2
Ambient temperature range	-20°C➞35°C
Engine oil grade SAE	10W-30
Engine oil classification API/ACEA	SG/A2
Ambient temperature range	-20°C➞
Engine oil grade SAE	10W-40
Engine oil classification API/ACEA	SG/A2
Ambient temperature range	-15°C➞
Engine oil grade SAE	15W-40, 15W-50
Engine oil classification API/ACEA	SG/A2
Ambient temperature range	-10°C➞
Engine oil grade SAE	20W-40, 20W-50
Engine oil classification API/ACEA	SG/A2
Engine with filter(s) litres	3.0
Other lubricants and capacities
Manual transmission litres	2.5
Cooling system - total capacity litres	4.5

Service & electrical

Ignition timing

Basic ignition timing for the Honda Civic 1.2 (1973–1978) is 5° BTDC at 750 rpm.

Ignition timing	Without vacuum
Ignition timing - basic BTDC °Engine/rpm	5/750

Battery

The Honda Civic 1.2 (1973–1978) uses a 12 V, 45 Ah battery (reserve capacity 65 minutes).

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

Spark plugs

The Honda Civic 1.2 (1973–1978) uses NGK BPR6ES spark plugs with a 0,8 mm electrode gap.

Spark plugs Original equipment	NGK
Spark plug Type	BPR6ES
Electrode gap mm	0,8
Spark plugs Make	Autolite
Spark plug Type	64
Electrode gap mm	0,8
Spark plugs Make	Beru
Spark plug Type	14-7DU
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	BPR6ES
Electrode gap mm	0,8

Tuning and emissions

Static timing	5
Ignition advance	Without vacuum and basic timing
Ignition advance checks °Engine/rpm	14-16/2100
Ignition advance checks °Engine/rpm	20-24/3000
Ignition advance checks °Engine/rpm	27-31/4000
Vacuum check	Ignition timing advances
Vacuum range °Engine	22-26
Vacuum starts mbar	160
Vacuum ends mbar	366
Idle speed rpm	700-800
Fast idle speed - MT/AT rpm	2500-2800
Oil temperature °C	60
CO level at idle speed - tailpipe Vol. % CO	2,0-4,0
HC level at idle speed ppm	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	Hitachi
Minimum starting voltage V	8
Maximum cranking amps A	122-149
Alternator Make	Hitachi
Alternator output A/V/rpm	45/14/3000
Regulated voltage V	13,5-14,4

Service checks and adjustments

Compression pressure bar	12,0
Drive belt tension - alternator/PAS/AC mm	12-17/10

Fuel system

Fuel pump delivery pressure bar	0,18

Tightening torques

Cylinder head bolt torque

The cylinder head bolt torque for the Honda Civic 1.2 (1973–1978) is 45 Nm.

Cylinder head
Tighten	45 Nm

Other engine tightening torques
Cylinder head instructions	—
Main bearings Stage 1	20 Nm
Main bearings Stage 2	40 Nm
Big end bearings Stage 1	13 Nm
Big end bearings Stage 2	27 Nm
Flywheel/driveplate	50 Nm
Spark plugs	15-25 Nm
Chassis tightening torques
Road wheels	70-90 Nm

Frequently asked questions

What is the firing order of the Honda Civic 1.2?

The firing order for the Honda Civic 1.2 (1973–1978) is 1-3-4-2.

What spark plugs does the Honda Civic 1.2 use?

The Honda Civic 1.2 (1973–1978) uses NGK BPR6ES spark plugs with a 0,8 mm electrode gap.

How much oil does the Honda Civic 1.2 take?

The Honda Civic 1.2 (1973–1978) takes 3.0 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 Honda Civic 1.2?

Valve clearances for the Honda Civic 1.2 (1973–1978) are 0,14 mm inlet and 0,14 mm exhaust, measured cold.

What is the cylinder head torque for the Honda Civic 1.2?

The cylinder head bolt torque for the Honda Civic 1.2 (1973–1978) is 45 Nm.

What is the ignition timing for the Honda Civic 1.2?

Basic ignition timing for the Honda Civic 1.2 (1973–1978) is 5° BTDC at 750 rpm.