Mazda1983–1987Technical specifications

626 1.6: Technical specifications

Workshop data for the 1.6-litre petrol (engine code F6). Covers engine, fluids, service and torques: the figures to check before a job or a parts order.

Summary

Match the engine code (F6) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Mazda
Model: 626
Years: 1983–1987
Fuel: Petrol
Engine code: F6

Performance & efficiency

Power: 55 kW (75 hp)
Engine size: 1,587 cc
Cylinders: 4 · OHC
Compression ratio: 8.6:1
Fuel system: Hitachi

Fluids & capacities

Engine oil (with the filter): 4.5 litres

All 86 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHC
Capacity (Fiscal) cc	1587 (1576)
Compression ratio :1	8,6
Suitable for unleaded petrol	Yes
Minimum octane rating RON	91
Ignition system Type	TSZ-i
Ignition system Description	Trans-i
Fuel system Make	Hitachi
Fuel system Description	Carb-2V

Ignition system

Ignition coil Make	Hanshin
Ignition coil supply voltage + with ballast V	11,0
Primary resistance Ohm	1,03-1,27
Secondary resistance Ohm	10000-30000
Distributor (ECM) Make	Mitsubishi

Firing order

The firing order for the Mazda 626 1.6 (1983–1987) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Mazda 626 1.6 (1983–1987) 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 (1983–1987) takes 4.5 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 manual gearbox has a listed capacity of 3.4 litres. The specified oil is SAE 80W-90.

Coolant

The listed total cooling-system capacity is 7.0 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	4.5
Other lubricants and capacities
Manual transmission oil grade SAE	80W-90
Manual transmission litres	3.4
Automatic transmission fluid Type	ATF-G 1986-=Dexron II
Automatic transmission (drain & refill) litres	5.7
Cooling system - total capacity litres	7.0

Service & electrical

Ignition timing

Basic ignition timing for the Mazda 626 1.6 (1983–1987) is 6°±1° BTDC at 900 rpm.

Ignition timing	Without vacuum
Ignition timing - basic BTDC °Engine/rpm	6±1/900

Battery

The Mazda 626 1.6 (1983–1987) 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 (1983–1987) 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	0-1/1640
Ignition advance checks °Engine/rpm	21-24/5000
Vacuum check	Ignition timing advances
Vacuum range °Engine	13-15
Vacuum starts mbar	133
Vacuum ends mbar	346
Idle speed rpm	800-850
Idle speed - alternative rpm	AT=900-950/N
Oil temperature °C	60
CO level at idle speed - tailpipe Vol. % CO	2,0±1,0
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	Mitsubishi
Starter motor Type	0,8 kW
Minimum starting voltage V	11,5
Maximum cranking amps A	162-198
Alternator Make	Mitsubishi
Alternator Type	12V 65A
Alternator output A/V/rpm	30/14/2500
Regulated voltage V	14,1-14,7

Service checks and adjustments

Compression pressure bar	8,1-11,5
Oil pressure bar/rpm	3,4-4,5/3000
Radiator cap bar	0,90
Thermostat opens °C	88
Drive belt size - alternator mm	4PKx812
Drive belt size - PAS/AC mm	5PKx975
Drive belt tension - alternator/PAS/AC mm	6-7

Fuel system

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

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Mazda 626 1.6 (1983–1987) are tightened in 4 stages: 20-26 Nm, then 50-56 Nm, then 80-86 Nm, then a final 93-98 Nm.

Cylinder head
Tighten	20-26 Nm
Tighten	50-56 Nm
Tighten	80-86 Nm
Run engine	15 minutes
Tighten	93-98 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	100 Nm/100 Nm
Crankshaft pulley/damper centre bolt	157-167 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 (1983–1987) is 1-3-4-2.

What spark plugs does the Mazda 626 1.6 use?

The Mazda 626 1.6 (1983–1987) 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 (1983–1987) takes 4.5 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 (1983–1987) 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 bolts on the Mazda 626 1.6 (1983–1987) are tightened in 4 stages: 20-26 Nm, then 50-56 Nm, then 80-86 Nm, then a final 93-98 Nm.

What is the ignition timing for the Mazda 626 1.6?

Basic ignition timing for the Mazda 626 1.6 (1983–1987) is 6°±1° BTDC at 900 rpm.