Mazda1997–2002Technical specifications

626 Estate 2.0: Technical specifications

Workshop data for the 2-litre petrol (engine code FS). 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 (FS) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Mazda
Model: 626 Estate
Years: 1997–2002
Fuel: Petrol
Engine code: FS

Performance & efficiency

Power: 85 kW (116 hp)
Engine size: 1,991 cc
Cylinders: 4 · DOHC
Compression ratio: 9.7:1
Fuel system: Mazda

Fluids & capacities

Engine oil (with the filter): 3.5 litres

All 131 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/DOHC
Capacity (Fiscal) cc	1991
Compression ratio :1	9,7
Suitable for unleaded petrol	Yes
Minimum octane rating RON	91
Ignition system Make	Mazda
Ignition system Type	EGI
Ignition system Description	Map-DIS
Trigger location	Cam/Crankshaft
Fuel system Make	Mazda
Fuel system Type	EGI
Fuel system Description	MFI-s
Air metering Type	Mass
Combined ignition and fuel ECM	Yes
Diagnostic socket	Yes

Ignition system

Ignition coil supply voltage + with ballast V	12,0
Primary resistance Ohm	0,45-0,55
Secondary resistance Ohm	11500-15500
Distributor (ECM) Make	(Mazda)

Firing order

The firing order for the Mazda 626 Estate 2.0 (1997–2002) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Mazda 626 Estate 2.0 (1997–2002) are 0,23-0,30 mm inlet and 0,23-0,30 mm exhaust, measured cold.

Valve clearance - INLET mm	0,23-0,30 cold
Valve clearance - EXHAUST mm	0,23-0,30 cold

Engine oil & fluids

Engine oil

The Mazda 626 Estate 2.0 (1997–2002) takes 3.5 litres of engine oil with the filter.

See the reference table for the complete engine oil entries and their conditions.

Manual gearbox

See the reference table for the complete manual gearbox 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	➞0°C
Engine oil grade SAE	5W-30
Engine oil classification API/ACEA	SJ/A2
Ambient temperature range	-25°C➞
Engine oil grade SAE	10W-30
Engine oil classification API/ACEA	SJ/A2
Engine with filter(s) litres	3.5
Other lubricants and capacities
Manual transmission oil grade SAE	—
Manual transmission oil grade
Manual transmission oil classification	GL-4/5
Manual transmission litres	2.7
Automatic transmission fluid Type	Dexron II
Automatic transmission (drain & refill) litres	8.0
Cooling system - total capacity litres	7.5
Brake fluid Type	DOT 3/4
Power steering fluid Type	Dexron II
Power steering fluid litres	0.8-1.0

Brakes & wear limits

Brake disc thickness

Brake discs on the Mazda 626 Estate 2.0 (1997–2002) are replaced at a minimum thickness of 22 mm (ventilated) front and 8 mm rear.

Minimum disc thickness for replacement - ventilated Front	22 mm
Minimum disc thickness for replacement Rear	8 mm
Maximum drum diameter for replacement Rear	230,1 mm

Brake disc and drum dimensions

Disc thickness variation Front	0,015 mm
Disc runout Front	0,05 mm
Disc runout Rear	0,05 mm
Minimum pad thickness Front	2 mm
Minimum pad thickness Rear	2 mm
Minimum shoe thickness Rear	1 mm
Parking brake travel No. of notches	5-7

Service & electrical

Battery

The Mazda 626 Estate 2.0 (1997–2002) uses a 12 V, 70 Ah battery (reserve capacity 110 minutes).

Battery V/RC(Ah)	12/110 (70)

Spark plugs

The Mazda 626 Estate 2.0 (1997–2002) uses Denso PKJ16CR8 spark plugs with a 0,8 mm electrode gap.

Spark plugs Original equipment	Denso
Spark plug Type	PKJ16CR8
Electrode gap mm	0,8
Spark plugs Make	Autolite
Spark plug Type	APP3923
Electrode gap mm	1,0
Spark plugs Make	Beru
Spark plug Type	14FR-7DUX
Electrode gap mm	1,1
Spark plugs Make	Bosch
Spark plug Type	FR7DCX
Electrode gap mm	1,1
Spark plugs Make	Champion
Spark plug Type	RC10YC4
Electrode gap mm	1,1
Spark plugs Make	NGK
Spark plug Type	PZFR6F
Electrode gap mm	0,8

Tuning and emissions

Ignition timing - basic BTDC °Engine/rpm	6-18/650±50 Not adjustable
Ignition advance checks °Engine/rpm	ECM Controlled
Idle speed rpm	650±50 Not adjustable
Oil temperature °C	80
CO level at idle speed - tailpipe Vol. % CO	0,5 Max Not adjustable
HC level at idle speed ppm	100
CO2 level at idle speed Vol. % CO2	14,5-16
O2 level at idle speed Vol. % O2	0,1-0,5
Increased idle speed for CO test rpm	2500-2800
CO content at increased idle speed Vol. %	0,3
Lambda at increased idle λ	0,97-1,03

Starting and charging

Maximum cranking amps A	189-231
Alternator output A/V/rpm	75/14/2000

Service checks and adjustments

Compression pressure bar	10,5-15,0
Oil pressure bar/rpm	4-5/3000
Radiator cap bar	9-12
Thermostat opens °C	84

Fuel system

Fuel pump delivery pressure bar	4,5-6,5
System pressure bar	2,6-3,2
Regulated pressure with vacuum bar	2,1-2,5
Engine coolant temperature (ECT) sensor Ohm/°C	718-792/60
Crankshaft position (CKP) sensor/engine speed (RPM) sensor Ohm	550
Injector Ohm	12,0-16,0

Tightening torques

Cylinder head bolt torque

The cylinder head bolt torque for the Mazda 626 Estate 2.0 (1997–2002) is 17-22 Nm.

Cylinder head
Maximum bolt length	105,5 mm
Tighten	17-22 Nm
Tighten	90°±5°
Tighten	90°±5°

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	—
Main bearings
Big end bearings Renew bolts/nuts	—
Big end bearings
Oil pump to cylinder block	19-25 Nm
Sump bolts	19-25 Nm
Sump drain bolt	30-40 Nm
Flywheel/driveplate	100 Nm/100 Nm
Clutch pressure plate	18-26 Nm
Crankshaft pulley/damper centre bolt	157-166 Nm
Camshaft sprocket/gear	50-60 Nm
Camshaft carrier/cap	11-14 Nm
Camshaft/rocker cover	7-10 Nm
Inlet manifold to cylinder head	20-30 Nm
Exhaust manifold to cylinder head	20-25 Nm
Exhaust downpipe to manifold	38-50 Nm
Water pump	19-25 Nm
Spark plugs	15-22 Nm
Fuel rail	19-25 Nm
Crankshaft position (CKP) sensor/engine speed (RPM) sensor	8-11 Nm
Camshaft position (CMP) sensor	8-11 Nm
Lambda sensor (Oxygen)	30-49 Nm
Knock sensor (KS)	20-34 Nm
Engine oil pressure switch	12-17 Nm
Chassis tightening torques
Front hub	—
Front hub
Rear hub	—
Rear hub
Steering track rod end	31-44 Nm
Brake caliper to carrier Front	47 Nm
Brake caliper/carrier to hub Front	90 Nm
Brake caliper to carrier Rear	37 Nm
Brake caliper/carrier to hub Rear	57 Nm
ABS sensor Front	20 Nm
ABS sensor Rear	20 Nm
Road wheels	80-117 Nm

Air conditioning

No. of AC service connectors	2
Air conditioning restrictor type	Expansion valve
Compressor clutch/magnetic coupling	Yes
Compressor variable displacement solenoid	No
Air conditioning refrigerant Type	R134a
Air conditioning refrigerant quantity grams	660±40
Air conditioning oil group	PAG
Air conditioning oil Type	Atmos GU 10
Air conditioning oil quantity cm³	150
Air conditioning oil viscosity ISO	46

Frequently asked questions

What is the firing order of the Mazda 626 Estate 2.0?

The firing order for the Mazda 626 Estate 2.0 (1997–2002) is 1-3-4-2.

What spark plugs does the Mazda 626 Estate 2.0 use?

The Mazda 626 Estate 2.0 (1997–2002) uses Denso PKJ16CR8 spark plugs with a 0,8 mm electrode gap.

How much oil does the Mazda 626 Estate 2.0 take?

The Mazda 626 Estate 2.0 (1997–2002) takes 3.5 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 626 Estate 2.0?

Valve clearances for the Mazda 626 Estate 2.0 (1997–2002) are 0,23-0,30 mm inlet and 0,23-0,30 mm exhaust, measured cold.

What is the cylinder head torque for the Mazda 626 Estate 2.0?

The cylinder head bolt torque for the Mazda 626 Estate 2.0 (1997–2002) is 17-22 Nm.

What is the minimum brake disc thickness for the Mazda 626 Estate 2.0?

Brake discs on the Mazda 626 Estate 2.0 (1997–2002) are replaced at a minimum thickness of 22 mm (ventilated) front and 8 mm rear.