Mazda1995–1998Technical specifications

MX-5 1.6: Technical specifications

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

Summary

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

Vehicle specifications

Overview

Make
Mazda
Model
MX-5
Years
1995–1998
Fuel
Petrol
Engine code
B6-DOHC

Performance & efficiency

Power
66 kW (90 hp)
Engine size
1,597 cc
Cylinders
4 · DOHC
Compression ratio
9.0:1
Fuel system
Mazda

Fluids & capacities

Engine oil (with the filter)
3.5 litres
All 127 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type4/DOHC
Capacity (Fiscal) cc1597
Compression ratio :19,0
Suitable for unleaded petrolYes
Minimum octane rating RON91
Ignition system MakeMazda
Ignition system TypeESA
Ignition system DescriptionMap-DIS
Trigger locationCam
Fuel system MakeMazda
Fuel system TypeEGI
Fuel system DescriptionMFI-s
Air metering TypeFlow
Combined ignition and fuel ECMYes
Diagnostic socketYes

Ignition system

Ignition coil supply voltage + with ballast V12,0
Primary resistance Ohm0,7-0,86
Secondary resistance Ohm11200-15200

Firing order

The firing order for the Mazda MX-5 1.6 (1995–1998) is 1-3-4-2.

Firing order1-3-4-2

Valve clearances

Valve clearances on the Mazda MX-5 1.6 (1995–1998) 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 MX-5 1.6 (1995–1998) 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

The manual gearbox has a listed capacity of 2.0 litres. The specified oil is SAE 75W-90.

Coolant

The listed total cooling-system capacity is 6.0 litres.

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 3.5
Other lubricants and capacities
Manual transmission oil grade SAE 75W-90
Manual transmission litres 2.0
Differential oil grade - rear SAE 80W-90
Differential oil classification - rear GL-5
Differential rear litres 1.0
Cooling system - total capacity litres 6.0
Brake fluid Type DOT 3
Power steering fluid Type Dexron II
Power steering fluid litres 0.8

Brakes & wear limits

Brake disc thickness

Brake discs on the Mazda MX-5 1.6 (1995–1998) 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

Brake disc and drum dimensions

Minimum disc thickness
Disc runout Front0,10 mm
Disc runout Rear0,10 mm
Minimum pad thickness Front1 mm
Minimum pad thickness Rear1 mm
Parking brake travel No. of notches7-9

Service & electrical

Ignition timing

Basic ignition timing for the Mazda MX-5 1.6 (1995–1998) is 10°±1° BTDC at 850 rpm.

Ignition timing and idle speed
Ignition timing - basic BTDC °Engine/rpm10±1/850

Battery

The Mazda MX-5 1.6 (1995–1998) uses a 12 V, 32 Ah battery (reserve capacity 35 minutes).

Battery V/RC(Ah)12/35 (32)

Spark plugs

The Mazda MX-5 1.6 (1995–1998) uses Denso K16PR-U11 spark plugs with a 1,1 mm electrode gap.

Spark plugs Original equipmentDenso
Spark plug TypeK16PR-U11
Electrode gap mm1,1
Spark plugs MakeAutolite
Spark plug TypeAPP3923
Electrode gap mm1,0
Spark plugs MakeBeru
Spark plug Type14FR-TDUX
Electrode gap mm1,1
Spark plugs MakeBosch
Spark plug TypeFR7DCX
Electrode gap mm1,1
Spark plugs MakeChampion
Spark plug TypeRC9YCC4
Electrode gap mm1,1
Spark plugs MakeNGK
Spark plug TypeBKR6E-11
Electrode gap mm1,1

Tuning and emissions

Tuning conditions—
View more information—
Ignition timing and idle speed
Ignition advance checks °Engine/rpmECM Controlled
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

Maximum cranking amps A86-106

Service checks and adjustments

Compression pressure bar9,3-13,2
Oil pressure bar/rpm2,9-3,9/3000
Radiator cap bar0,75-1,05
Thermostat opens °C86
Drive belt tension - alternator/PAS/AC mm6-7,5/9-10

Fuel system

Fuel pump delivery pressure bar4,5-6,0
System pressure bar2,7-3,2
Engine coolant temperature (ECT) sensor Ohm/°C290-350/80
Injector Ohm12,0-16,0
Idle air control (IAC) valve/idle speed control (ISC) actuator Ohm11,0-13,0
Lambda sensor (Oxygen) heater Ohm13,0

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Mazda MX-5 1.6 (1995–1998) are tightened in 3 stages: 26-31 Nm, then 56-61 Nm, then a final 76-81 Nm.

Cylinder head
Renew boltsNo
Tighten26-31 Nm
Tighten56-61 Nm
Tighten76-81 Nm
Cylinder head instructions—
Other engine tightening torques
Main bearings Renew bolts/nutsNo
Main bearings Stage 125-30 Nm
Main bearings Stage 254-59 Nm
Big end bearings Renew bolts/nutsNo
Big end bearings Stage 120-25 Nm
Big end bearings Stage 250-54 Nm
Oil pump to cylinder block20-25 Nm
Sump bolts10 Nm
Sump drain bolt30-40 Nm
Flywheel/driveplate96-103 Nm
Clutch pressure plate18-26 Nm
Crankshaft pulley/damper centre bolt157-166 Nm
Camshaft sprocket/gear49-61 Nm
Camshaft carrier/cap11-14 Nm
Camshaft/rocker cover5-9 Nm
Inlet manifold to cylinder head20-25 Nm
Exhaust manifold to cylinder head40-45 Nm
Spark plugs15-22 Nm
Lambda sensor (Oxygen)29-49 Nm
Chassis tightening torques
Front hub167-216 Nm
Rear hub216-294 Nm
Steering track rod end29-44 Nm
Brake caliper to carrier Front—
Brake caliper to carrier
Brake caliper/carrier to hub Front59 Nm
Brake caliper to carrier Rear52 Nm
Brake caliper/carrier to hub Rear52 Nm
ABS sensor Front20 Nm
ABS sensor Rear20 Nm
Road wheels88-118 Nm

Frequently asked questions

What is the firing order of the Mazda MX-5 1.6?

The firing order for the Mazda MX-5 1.6 (1995–1998) is 1-3-4-2.

What spark plugs does the Mazda MX-5 1.6 use?

The Mazda MX-5 1.6 (1995–1998) uses Denso K16PR-U11 spark plugs with a 1,1 mm electrode gap.

How much oil does the Mazda MX-5 1.6 take?

The Mazda MX-5 1.6 (1995–1998) 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 MX-5 1.6?

Valve clearances on the Mazda MX-5 1.6 (1995–1998) are hydraulic — they self-adjust, so no manual clearance figure applies.

What is the cylinder head torque for the Mazda MX-5 1.6?

The cylinder head bolts on the Mazda MX-5 1.6 (1995–1998) are tightened in 3 stages: 26-31 Nm, then 56-61 Nm, then a final 76-81 Nm.

What is the ignition timing for the Mazda MX-5 1.6?

Basic ignition timing for the Mazda MX-5 1.6 (1995–1998) is 10°±1° BTDC at 850 rpm.

More on the MX-5