Mazda1979–1983Technical specifications

626 1.6: Technical specifications

Workshop data for the 1.6-litre petrol (engine code 1600/NA). Covers engine, fluids, service and torques: the figures to check before a job or a parts order.

Summary

Match the engine code (1600/NA) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Mazda
Model: 626
Years: 1979–1983
Fuel: Petrol
Engine code: 1600/NA

Performance & efficiency

Power: 55 kW (75 hp)
Engine size: 1,586 cc
Cylinders: 4 · OHC
Compression ratio: 8.6:1
Fuel system: Nikki

Fluids & capacities

Engine oil (with the filter): 4.1 litres

All 84 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHC
Capacity (Fiscal) cc	1586 (1575)
Compression ratio :1	8,6
Suitable for unleaded petrol	Yes
Minimum octane rating RON	91
Ignition system Type	SZ
Ignition system Description	CB
Fuel system Make	Nikki
Fuel system Description	Carb-2V

Ignition system

Ballast resistance Ohm	1,6
Primary resistance Ohm	1,5
Secondary resistance Ohm	9000
Distributor (ECM) Make	Mitsubishi
Contact breaker gap/trigger air gap mm	0,5
Dwell angle °(%)	49-55 (54-61)

Firing order

The firing order for the Mazda 626 1.6 (1979–1983) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Mazda 626 1.6 (1979–1983) are 0,30 mm inlet and 0,30 mm exhaust, measured hot.

Valve clearance - INLET mm	0,30 hot
Valve clearance - EXHAUST mm	0,30 hot

Engine oil & fluids

Engine oil

The Mazda 626 1.6 (1979–1983) takes 4.1 litres of engine oil with the filter.

A listed engine oil option is SAE 20W-40 for moderate climates, with API/ACEA classification SG.

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

Manual gearbox

The specified manual gearbox oil is SAE 80W-90.

See the reference table for the complete manual gearbox entries and their conditions.

Coolant

The listed total cooling-system capacity is 7.5 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	Moderate climate
Engine oil grade SAE	20W-40
Engine oil classification API/ACEA	SG
Ambient temperature range	Moderate climate alternative
Engine oil grade SAE	20W-50
Engine with filter(s) litres	4.1
Other lubricants and capacities
Manual transmission oil grade SAE	80W-90
Manual transmission litres	1,4/1,7
Automatic transmission fluid Type	ATF-G
Automatic transmission (drain & refill) litres	6.2
Differential oil grade - rear SAE	80W-90
Differential rear litres	1.2
Cooling system - total capacity litres	7.5

Service & electrical

Ignition timing

Basic ignition timing for the Mazda 626 1.6 (1979–1983) is 8°±1° BTDC at 700 rpm.

Ignition timing	Without vacuum
Ignition timing - basic BTDC °Engine/rpm	8±1/700

Battery

The Mazda 626 1.6 (1979–1983) uses a 12 V, 60 Ah battery (reserve capacity 90 minutes).

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

Spark plugs

The Mazda 626 1.6 (1979–1983) uses NGK BPR5ES spark plugs with a 0,8 mm electrode gap.

Spark plugs Original equipment	NGK
Spark plug Type	BPR5ES
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	BPR5ES
Electrode gap mm	0,8

Tuning and emissions

Ignition advance	Without vacuum and basic timing
Ignition advance checks °Engine/rpm	0/1000
Ignition advance checks °Engine/rpm	10-13/3000
Ignition advance checks °Engine/rpm	17/4000
Vacuum check	Ignition timing advances
Vacuum range °Engine	14
Vacuum starts mbar	167 AT=213
Vacuum ends mbar	373 AT=453
Idle speed rpm	700-750
Oil temperature °C	60
CO level at idle speed - tailpipe Vol. % CO	2,0±0,5
HC level at idle speed ppm	300
HC level at idle - alternative ppm	-1982=400
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	Mitsubishi
Starter motor Type	0,8 kW
Minimum starting voltage V	11,5
Maximum cranking amps A	162-198
Alternator Make	Mitsubishi
Alternator output A/V/rpm	45/13,5/2500
Regulated voltage V	14,1-14,7

Service checks and adjustments

Compression pressure bar	11,9
Oil pressure bar/rpm	3,5-4,5/3000
Radiator cap bar	0,90-1,00
Thermostat opens °C	82
Drive belt size - alternator mm	12,5x975
Drive belt tension - alternator/PAS/AC mm	12-14

Fuel system

Fuel pump delivery pressure bar	0,2-0,25

Tightening torques

Cylinder head bolt torque

The cylinder head bolt torque for the Mazda 626 1.6 (1979–1983) is 77-83 Nm.

Cylinder head
Tighten	77-83 Nm

Other engine tightening torques
Cylinder head instructions	—
Main bearings Stage 1	42-45 Nm
Main bearings Stage 2	84-90 Nm
Big end bearings Stage 1	25-26 Nm
Big end bearings Stage 2	50-55 Nm
Flywheel/driveplate	151-159 Nm
Crankshaft pulley/damper centre bolt	136-146 Nm
Spark plugs	15-23 Nm
Chassis tightening torques
Road wheels	90-110 Nm

Frequently asked questions

What is the firing order of the Mazda 626 1.6?

The firing order for the Mazda 626 1.6 (1979–1983) is 1-3-4-2.

What spark plugs does the Mazda 626 1.6 use?

The Mazda 626 1.6 (1979–1983) uses NGK BPR5ES spark plugs with a 0,8 mm electrode gap.

How much oil does the Mazda 626 1.6 take?

The Mazda 626 1.6 (1979–1983) takes 4.1 litres of engine oil with the filter. A listed engine oil option is SAE 20W-40 for moderate climates, with API/ACEA classification SG. A listed engine oil option is SAE 20W-50 as an alternative for moderate climates.

What are the valve clearances for the Mazda 626 1.6?

Valve clearances for the Mazda 626 1.6 (1979–1983) are 0,30 mm inlet and 0,30 mm exhaust, measured hot.

What is the cylinder head torque for the Mazda 626 1.6?

The cylinder head bolt torque for the Mazda 626 1.6 (1979–1983) is 77-83 Nm.

What is the ignition timing for the Mazda 626 1.6?

Basic ignition timing for the Mazda 626 1.6 (1979–1983) is 8°±1° BTDC at 700 rpm.