Mazda1995–2000Technical specifications

121 1.3: Technical specifications

Workshop data for the 1.3-litre petrol (engine code JJA). 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 (JJA) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Mazda
Model: 121
Years: 1995–2000
Fuel: Petrol
Engine code: JJA

Performance & efficiency

Power: 37 kW (50 hp)
Engine size: 1,299 cc
Cylinders: 4 · OHV
Compression ratio: 9.5:1
Fuel system: Ford

Fluids & capacities

Engine oil (with the filter): 3.25 litres

All 97 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHV
Capacity (Fiscal) cc	1299
Compression ratio :1	9,5
Suitable for unleaded petrol	Yes
Minimum octane rating RON	95
Ignition system Make	Ford
Ignition system Type	EEC-V
Ignition system Description	Map-DIS
Trigger location	Cam/Crankshaft
Fuel system Make	Ford
Fuel system Type	EEC-V
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	11,0
Primary resistance Ohm	0,4-0,6
Secondary resistance Ohm	10500-16500

Firing order

The firing order for the Mazda 121 1.3 (1995–2000) is 1-2-4-3.

Firing order	1-2-4-3

Valve clearances

Valve clearances for the Mazda 121 1.3 (1995–2000) are 0,20 mm inlet and 0,30 mm exhaust, measured cold.

Valve clearance - INLET mm	0,20 cold
Valve clearance - EXHAUST mm	0,30 cold

Engine oil & fluids

Engine oil

The Mazda 121 1.3 (1995–2000) takes 3.25 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 2.6 litres. The specified oil is SAE 75W-90.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	-30°C➞
Engine oil grade SAE	5W-40, 5W-50
Engine oil classification API/ACEA	SJ/A2
Ambient temperature range	-20°C➞
Engine oil grade SAE	10W-30
Engine oil classification API/ACEA	SJ/A2
Ambient temperature range	-10°C➞
Engine oil grade SAE	15W-40
Engine oil classification API/ACEA	SJ/A2
Engine with filter(s) litres	3.25
Other lubricants and capacities
Manual transmission oil grade SAE	75W-90
Manual transmission litres	2.6
Brake fluid Type	DOT 4
Power steering fluid Type	Dexron II

Brakes & wear limits

Brake disc thickness

Brake discs on the Mazda 121 1.3 (1995–2000) are replaced at a minimum thickness of 8 mm (solid) or 18 mm (ventilated) front; the rear brake drums are replaced at a maximum diameter of 181 mm.

Minimum disc thickness for replacement - solid Front	8 mm
Minimum disc thickness for replacement - ventilated Front	18 mm
Maximum drum diameter for replacement Rear	181 mm

Brake disc and drum dimensions

Maximum drum diameter
Disc thickness variation Front	0,020 mm
Disc runout Front	0,10 mm
Minimum pad thickness Front	1,5 mm
Minimum shoe thickness Rear	1 mm
Parking brake travel No. of notches	6

Service & electrical

Ignition timing

The ignition timing on the Mazda 121 1.3 (1995–2000) is not adjustable.

Ignition timing - basic BTDC °Engine/rpm	Not adjustable

Spark plugs

The Mazda 121 1.3 (1995–2000) uses Motorcraft AGRF22PP spark plugs with a 1,0 mm electrode gap.

Spark plugs Original equipment	Motorcraft
Spark plug Type	AGRF22PP
Electrode gap mm	1,0

Tuning and emissions

Ignition advance checks °Engine/rpm	ECM Controlled
Idle speed rpm	780±25 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

Service checks and adjustments

Compression pressure bar	13,0-16,0
Oil pressure bar/rpm	1,5/2000

Fuel system

System pressure bar	3,0
Regulated pressure with vacuum bar	2,7

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Mazda 121 1.3 (1995–2000) are tightened in 3 stages: 30 Nm, then 90°, then a final 90°.

Cylinder head
Renew bolts	Yes
Tighten	30 Nm
Tighten	90°
Tighten	90°

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	45 Nm
Main bearings Stage 2	95 Nm
Big end bearings Renew bolts/nuts	Yes
Big end bearings Stage 1	4 Nm
Big end bearings Stage 2	90°
Oil pump to cylinder block	18 Nm
Sump bolts	1)7 Nm 2)10 Nm
Sump drain bolt	25 Nm
Flywheel/driveplate	67 Nm
Clutch pressure plate	30 Nm
Crankshaft pulley/damper centre bolt	115 Nm
Camshaft sprocket/gear	28 Nm
Camshaft/rocker cover	6 Nm
Inlet manifold to cylinder head	18 Nm
Exhaust manifold to cylinder head	23 Nm
Spark plugs	17 Nm
Lambda sensor (Oxygen)	42 Nm
Chassis tightening torques
Front hub	290 Nm
Rear hub	270 Nm
Steering track rod end	36 Nm
Brake caliper to carrier Front	30 Nm
Brake caliper/carrier to hub Front	58 Nm
Road wheels	85 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	740±10
Air conditioning oil group	PAG
Air conditioning oil quantity cm³	200

Frequently asked questions

What is the firing order of the Mazda 121 1.3?

The firing order for the Mazda 121 1.3 (1995–2000) is 1-2-4-3.

What spark plugs does the Mazda 121 1.3 use?

The Mazda 121 1.3 (1995–2000) uses Motorcraft AGRF22PP spark plugs with a 1,0 mm electrode gap.

How much oil does the Mazda 121 1.3 take?

The Mazda 121 1.3 (1995–2000) takes 3.25 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 121 1.3?

Valve clearances for the Mazda 121 1.3 (1995–2000) are 0,20 mm inlet and 0,30 mm exhaust, measured cold.

What is the cylinder head torque for the Mazda 121 1.3?

The cylinder head bolts on the Mazda 121 1.3 (1995–2000) are tightened in 3 stages: 30 Nm, then 90°, then a final 90°.

What is the ignition timing for the Mazda 121 1.3?

The ignition timing on the Mazda 121 1.3 (1995–2000) is not adjustable.