Mazda1998–2002Technical specifications

626 2.0 Turbo: Technical specifications

Workshop data for the 2-litre diesel (engine code RF-Turbo HP). 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 (RF-Turbo HP) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Mazda
Model: 626
Years: 1998–2002
Fuel: Diesel
Engine code: RF-Turbo HP

Performance & efficiency

Power: 74 kW (101 hp)
Engine size: 1,998 cc
Cylinders: 4 · OHC
Compression ratio: 18.8:1

Fluids & capacities

Engine oil (with the filter): 4.7 litres

All 102 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHC
Capacity cc	1998
Compression ratio :1	18,8

Injection system

Fuel/injection pump assembly Type	VE
Pump type	Rotary
Nozzle opening pressure - new/used bar	172-181

Injection sequence

The injection sequence for the Mazda 626 2.0 Turbo (1998–2002) is 1-3-4-2.

Injection sequence	1-3-4-2

Valve clearances

Valve clearances for the Mazda 626 2.0 Turbo (1998–2002) are 0,12-0,18 mm inlet and 0,32-0,38 mm exhaust, measured cold.

Valve clearance - INLET mm	0,12-0,18 cold
Valve clearance - EXHAUST mm	0,32-0,38 cold

Engine oil & fluids

Engine oil

The Mazda 626 2.0 Turbo (1998–2002) takes 4.7 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.

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

Coolant

The listed total cooling-system capacity is 9.0 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	➞30°C
Engine oil grade SAE	5W-30
Engine oil classification API/ACEA	CF/B3
Ambient temperature range	-15°C➞30°C
Engine oil grade SAE	10W-30
Engine oil classification API/ACEA	CF/B3
Ambient temperature range	-25°C➞45°C
Engine oil grade SAE	10W-40
Engine oil classification API/ACEA	CF/B3
Ambient temperature range	-15°C➞35°C
Engine oil grade SAE	15W-40
Engine oil classification API/ACEA	CF/B3
Engine with filter(s) litres	4.7
Other lubricants and capacities
Manual transmission oil grade SAE	—
Manual transmission oil classification	GL-4/5
Manual transmission litres	2.7
Cooling system - total capacity litres	9.0
Brake fluid Type	DOT 3
Power steering fluid Type	Dexron II

Brakes & wear limits

Brake disc thickness

Brake discs on the Mazda 626 2.0 Turbo (1998–2002) 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

Brake disc and drum dimensions

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	2 mm
Parking brake travel No. of notches	5-7

Service & electrical

Battery

The Mazda 626 2.0 Turbo (1998–2002) uses a 12 V, 64 Ah battery.

Battery V/RC(Ah)	12 (64)

Tuning and emissions

Crankshaft position (n = ATDC) °BTDC	7 n
Adjusting method Engine/Pump	Pointer/Pointer
Idle speed rpm	775±25
Oil temperature °C	60
Water temperature °C	60
Idle speed - for smoke test rpm	750-800
Maximum time at governed speed secs	1,0
Test mode A/B	B
Probe type 1/2	1
Smoke opacity - EU limit m-1 (%)	3,00 (73)

Starting and charging

Maximum cranking amps A	173-211
Alternator output A/V/rpm	80/12/-

Service checks and adjustments

Compression pressure bar	26,0-29,0
Oil pressure bar/rpm	3,4/3000
Radiator cap bar	0,90-1,20
Thermostat opens °C	80-84

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Mazda 626 2.0 Turbo (1998–2002) are tightened in 2 stages: 15 Nm, then a final 29 Nm.

Cylinder head
Maximum bolt length	116,8 mm
Tighten	15 Nm
Tighten	29 Nm
Tighten	90°-105°
Tighten	90°-105°

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	40 Nm
Main bearings Stage 2	83-88 Nm
Big end bearings Renew bolts/nuts	No
Big end bearings Stage 1	30 Nm
Big end bearings Stage 2	65-68 Nm
Oil pump to cylinder block	M8=22 Nm M10=45 Nm
Sump bolts	8-11 Nm
Sump drain bolt	30-41 Nm
Flywheel/driveplate	162-171 Nm
Clutch pressure plate	18-26 Nm
Crankshaft pulley/damper centre bolt	—
View more information	—
Camshaft sprocket/gear	55-64 Nm
Camshaft carrier/cap	25-30 Nm
Camshaft/rocker cover	8-11 Nm
Inlet manifold to cylinder head	19-25 Nm
Exhaust manifold to cylinder head	22-26 Nm
Exhaust downpipe to manifold	43-60 Nm
Water pump	38-51 Nm
Injector/clamp	52-61 Nm
Injector pipe unions	29 Nm
Fuel/injection pump sprocket/gear	59-68 Nm
Fuel/injection pump flange	19-25 Nm
Fuel/injection pump mounting	19-25 Nm
Glow plugs	15-20 Nm
Engine oil pressure switch	12-17 Nm
Chassis tightening torques
Front hub	236-318 Nm
Rear hub	177-235 Nm
Steering track rod end	32-44 Nm
Brake caliper to carrier Front	47 Nm
Brake caliper/carrier to hub Front	90 Nm
Brake caliper to carrier Rear	20 Nm
Brake caliper/carrier to hub Rear	56 Nm
ABS sensor Front	19-25 Nm
ABS sensor Rear	19-25 Nm
Road wheels	89-117 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 injection sequence of the Mazda 626 2.0 Turbo?

The injection sequence for the Mazda 626 2.0 Turbo (1998–2002) is 1-3-4-2.

How much oil does the Mazda 626 2.0 Turbo take?

The Mazda 626 2.0 Turbo (1998–2002) takes 4.7 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 2.0 Turbo?

Valve clearances for the Mazda 626 2.0 Turbo (1998–2002) are 0,12-0,18 mm inlet and 0,32-0,38 mm exhaust, measured cold.

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

The cylinder head bolts on the Mazda 626 2.0 Turbo (1998–2002) are tightened in 2 stages: 15 Nm, then a final 29 Nm.

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

Brake discs on the Mazda 626 2.0 Turbo (1998–2002) are replaced at a minimum thickness of 22 mm (ventilated) front and 8 mm rear.

What battery does the Mazda 626 2.0 Turbo use?

The Mazda 626 2.0 Turbo (1998–2002) uses a 12 V, 64 Ah battery.