Mazda1989–1994Technical specifications

323 Estate 1.6: Technical specifications

Workshop data for the 1.6-litre petrol (engine code B6). Covers engine, fluids, brakes, service, torques and air conditioning: the figures to check before a job or a parts order.

Summary

Match the engine code (B6) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make
Mazda
Model
323 Estate
Years
1989–1994
Fuel
Petrol
Engine code
B6

Performance & efficiency

Power
63 kW (86 hp)
Engine size
1,597 cc
Cylinders
4 · OHC
Compression ratio
9.3:1
Fuel system
Mazda

Fluids & capacities

Engine oil (with the filter)
3.3 litres
All 137 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type4/OHC
Capacity (Fiscal) cc1597 (1587)
Compression ratio :19,3
Suitable for unleaded petrolYes
Minimum octane rating RON95
Ignition system TypeHEI
Ignition system DescriptionTrans-i
Trigger locationDistributor
Fuel system MakeMazda
Fuel system TypeEGI
Fuel system DescriptionMFI-i
Air metering TypeFlow
Combined ignition and fuel ECMNo
Diagnostic socketNo

Ignition system

Ignition coil supply voltage + with ballast V11,0
Primary resistance Ohm1,04-1,27
Secondary resistance Ohm6000-30000
Distributor (ECM) MakeMitsubishi

Firing order

The firing order for the Mazda 323 Estate 1.6 (1989–1994) is 1-3-4-2.

Firing order1-3-4-2

Valve clearances

Valve clearances on the Mazda 323 Estate 1.6 (1989–1994) are hydraulic — they self-adjust, so no manual clearance figure applies.

Valve clearance - INLET mmHydraulic
Valve clearance - EXHAUST mmHydraulic

Engine oil & fluids

Engine oil

The Mazda 323 Estate 1.6 (1989–1994) 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 2.7 litres. The specified oil is SAE 80W-90.

Transfer box

See the reference table for the complete transfer box entries and their conditions.

Coolant

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 ➞-20°C
Engine oil grade SAE 5W-20
Engine oil classification API/ACEA SJ/A2
Ambient temperature range ➞0°C
Engine oil grade SAE 5W-30
Engine oil classification API/ACEA SJ/A2
Ambient temperature range -25°C➞30°C
Engine oil grade SAE 10W-30
Engine oil classification API/ACEA SJ/A2
Ambient temperature range -25°C➞
Engine oil grade SAE 10W-40, 10W-50
Engine oil classification API/ACEA SJ/A2
Ambient temperature range -10°C➞
Engine oil grade SAE 20W-40, 20W-50
Engine oil classification API/ACEA SJ/A2
Engine with filter(s) litres 3.3
Other lubricants and capacities
Manual transmission oil grade SAE 80W-90
Manual transmission litres 2.7
Filling capacities
Differential rear litres 1.3
Transfer box litres 0.5
Cooling system - total capacity litres 5.0
Brake fluid Type DOT 3/4
Power steering fluid Type Dexron II
Power steering fluid litres 0.6

Brakes & wear limits

Brake disc thickness

Brake discs on the Mazda 323 Estate 1.6 (1989–1994) are replaced at a minimum thickness of 16 mm (ventilated) front and 7 mm rear.

Minimum disc thickness for replacement - ventilated Front16 mm
Minimum disc thickness
Minimum disc thickness for replacement Rear7 mm
Maximum drum diameter for replacement Rear229,6 mm

Brake disc and drum dimensions

Minimum disc thickness
Disc runout Front0,10 mm
Disc runout Rear0,10 mm
Minimum pad thickness Front2 mm
Minimum pad thickness Rear1 mm
Minimum shoe thickness Rear1 mm
Parking brake travel No. of notches5-7

Service & electrical

Ignition timing

Basic ignition timing for the Mazda 323 Estate 1.6 (1989–1994) is 2°±1° BTDC at 850 rpm.

Ignition timingWithout vacuum
Ignition timing - basic BTDC °Engine/rpm2±1/850

Battery

The Mazda 323 Estate 1.6 (1989–1994) uses a 12 V, 50 Ah battery (reserve capacity 80 minutes).

Battery V/RC(Ah)12/80 (50)

Spark plugs

The Mazda 323 Estate 1.6 (1989–1994) uses NGK BPR5ES-11 spark plugs with a 1,1 mm electrode gap.

Spark plugs Original equipmentNGK
Spark plug TypeBPR5ES-11
Electrode gap mm1,1
Spark plugs MakeAutolite
Spark plug TypeAPP63
Electrode gap mm0,8
Spark plugs MakeBeru
Spark plug Type14FR-7DUX
Electrode gap mm1,1
Spark plugs MakeBosch
Spark plug TypeFR7DCX
Electrode gap mm1,1
Spark plugs MakeChampion
Spark plug TypeRN9YC4
Electrode gap mm1,1
Spark plugs MakeNGK
Spark plug TypeBPR5ES-11
Electrode gap mm1,1

Tuning and emissions

Ignition advanceWithout vacuum and basic timing
Ignition advance checks °Engine/rpm0-2/1300
Ignition advance checks °Engine/rpm17-21/3500
Vacuum checkIgnition timing advances
Vacuum range °Engine26-30
Vacuum starts mbar100
Vacuum ends mbar600
Idle speed rpm850±50
Oil temperature °C60
CO level at idle speed - tailpipe Vol. % CO0,5 Max Not adjustable
HC level at idle speed ppm100
CO2 level at idle speed Vol. % CO214,5-16
O2 level at idle speed Vol. % O20,1-0,5
Increased idle speed for CO test rpm2500-2800
CO content at increased idle speed Vol. %0,3
Lambda at increased idle λ0,97-1,03

Starting and charging

Starter motor MakeMitsubishi
Starter motor Type0,85 kW
Minimum starting voltage V8
Maximum cranking amps A135-165
Alternator MakeMitsubishi
Alternator output A/V/rpm60/13,5/3000
Voltage regulator TypeIC
Regulated voltage V14,1-14,7

Service checks and adjustments

Compression pressure bar9,5-13,6
Oil pressure bar/rpm3,4-4,4/3000
Radiator cap bar0,74-1,03
Thermostat opens °C82
Drive belt size - alternator mm9,5x900
Drive belt tension - alternator/PAS/AC mm9-10

Fuel system

System pressure bar2,5-2,8
Regulated pressure with vacuum bar2,0-2,2
Injector Ohm11,0-15,0
Idle air control (IAC) valve/idle speed control (ISC) actuator Ohm5,0-20,0

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Mazda 323 Estate 1.6 (1989–1994) are tightened in 3 stages: 30 Nm, then 55 Nm, then a final 76-81 Nm.

Cylinder head
Renew boltsNo
Tighten30 Nm
Tighten55 Nm
Tighten76-81 Nm
Cylinder head instructions—
Other engine tightening torques
Main bearings Renew bolts/nutsNo
Main bearings Stage 127 Nm
Main bearings Stage 254-59 Nm
Big end bearings Renew bolts/nutsNo
Big end bearings Stage 125 Nm
Big end bearings Stage 250-54 Nm
Oil pump to cylinder block20-25 Nm
Sump bolts10 Nm
Sump drain bolt30-45 Nm
Flywheel/driveplate100 Nm
Clutch pressure plate18-26 Nm
Crankshaft pulley/damper centre bolt108-128 Nm
Camshaft sprocket/gear49-61 Nm
Camshaft/rocker cover5-9 Nm
Inlet manifold to cylinder head20-25 Nm
Exhaust manifold to cylinder head15-25 Nm
Spark plugs15-23 Nm
Chassis tightening torques
Front hub—
Front hub
Rear hub4x4=157-235 Nm
Brake caliper to carrier Rear20 Nm
Road wheels90-120 Nm

Air conditioning

Air conditioning refrigerant TypeR12
Air conditioning refrigerant quantity grams775±25
Air conditioning oil TypeDens Oil 6
Air conditioning oil quantity cm³120

Frequently asked questions

What is the firing order of the Mazda 323 Estate 1.6?

The firing order for the Mazda 323 Estate 1.6 (1989–1994) is 1-3-4-2.

What spark plugs does the Mazda 323 Estate 1.6 use?

The Mazda 323 Estate 1.6 (1989–1994) uses NGK BPR5ES-11 spark plugs with a 1,1 mm electrode gap.

How much oil does the Mazda 323 Estate 1.6 take?

The Mazda 323 Estate 1.6 (1989–1994) 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 Mazda 323 Estate 1.6?

Valve clearances on the Mazda 323 Estate 1.6 (1989–1994) are hydraulic — they self-adjust, so no manual clearance figure applies.

What is the cylinder head torque for the Mazda 323 Estate 1.6?

The cylinder head bolts on the Mazda 323 Estate 1.6 (1989–1994) are tightened in 3 stages: 30 Nm, then 55 Nm, then a final 76-81 Nm.

What is the ignition timing for the Mazda 323 Estate 1.6?

Basic ignition timing for the Mazda 323 Estate 1.6 (1989–1994) is 2°±1° BTDC at 850 rpm.

More on the 323 Estate