Mazda1982–1994Technical specifications

Econovan 1.4: Technical specifications

Workshop data for the 1.4-litre petrol (engine code UC1400). Covers engine, fluids, brakes, service and torques: the figures to check before a job or a parts order.

Summary

Match the engine code (UC1400) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Mazda
Model: Econovan
Years: 1982–1994
Fuel: Petrol
Engine code: UC1400

Performance & efficiency

Power: 48 kW (65 hp)
Engine size: 1,415 cc
Cylinders: 4 · OHC
Compression ratio: 9.0:1
Fuel system: Nikki

Fluids & capacities

Engine oil (with the filter): 4.1 litres

All 93 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHC
Capacity (Fiscal) cc	1415 (1405)
Compression ratio :1	9,0
Suitable for unleaded petrol	Yes
Minimum octane rating RON	91
Ignition system Type	SZ
Ignition system Description	CB
Fuel system Make	Nikki
Fuel system Description	Carb-2V
Diagnostic socket	No

Ignition system

Ballast resistance Ohm	1,5
Primary resistance Ohm	1,6
Contact breaker gap/trigger air gap mm	0,5
Dwell angle °(%)	49-55 (54-61)

Firing order

The firing order for the Mazda Econovan 1.4 (1982–1994) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Mazda Econovan 1.4 (1982–1994) are 0,30 mm inlet and 0,30 mm exhaust, measured cold.

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

Engine oil & fluids

Engine oil

The Mazda Econovan 1.4 (1982–1994) takes 4.1 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 1.5 litres. The specified oil is SAE 80W-90.

Coolant

The listed total cooling-system capacity is 7.5 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	4.1
Other lubricants and capacities
Manual transmission oil grade SAE	80W-90
Manual transmission litres	1.5
Differential oil grade - rear SAE	90W
Differential rear litres	1.2
Cooling system - total capacity litres	7.5

Brakes & wear limits

Brake disc thickness

Brake discs on the Mazda Econovan 1.4 (1982–1994) are replaced at a minimum thickness of 18 mm (ventilated) front; the rear brake drums are replaced at a maximum diameter of 181 mm.

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

Brake disc and drum dimensions

Disc runout Front	0,10 mm
Minimum pad thickness Front	1 mm
Minimum shoe thickness Rear	1 mm
Parking brake travel No. of notches	5-6

Service & electrical

Ignition timing

Basic ignition timing for the Mazda Econovan 1.4 (1982–1994) is 5°±1° BTDC at 800 rpm.

Contact breaker
Ignition timing	Without vacuum
Ignition timing - basic BTDC °Engine/rpm	5±1/800

Battery

The Mazda Econovan 1.4 (1982–1994) uses a 12 V, 33 Ah battery (reserve capacity 50 minutes).

Battery V/RC(Ah)	12/50 (33)

Spark plugs

The Mazda Econovan 1.4 (1982–1994) uses NGK BP6ES spark plugs with a 0,8 mm electrode gap.

Spark plugs Original equipment	NGK
Spark plug Type	BP6ES
Electrode gap mm	0,8
Spark plugs Make	Champion
Spark plug Type	RN9YCC
Electrode gap mm	0,8
Spark plugs Make	NGK
Spark plug Type	BP6ES
Electrode gap mm	0,8

Tuning and emissions

Contact breaker
Tuning conditions	—
Ignition advance	Without vacuum and basic timing
Ignition advance checks °Engine/rpm	0/600
Ignition advance checks °Engine/rpm	25/5500
Idle speed rpm	800±50
Oil temperature °C	60
CO level at idle speed - tailpipe Vol. % CO	2,0±0,5
HC level at idle speed ppm	300
CO2 level at idle speed Vol. % CO2	13-16
O2 level at idle speed Vol. % O2	0,5-2,0

Starting and charging

Starter motor Type	12V-0,8kW
Minimum starting voltage V	11,5
Maximum cranking amps A	89-109
Regulated voltage V	14,0-15,5

Service checks and adjustments

Compression pressure bar	8,9-11,9
Oil pressure bar/rpm	3,5-4,5/3000
Radiator cap bar	0,90
Thermostat opens °C	88
Drive belt tension - alternator/PAS/AC mm	12-14

Fuel system

Fuel pump delivery pressure bar	0,20-0,75

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Mazda Econovan 1.4 (1982–1994) are tightened in 3 stages: 30-35 Nm, then 60-70 Nm, then a final 95-100 Nm.

Cylinder head
Renew bolts	No
Tighten	30-35 Nm
Tighten	60-70 Nm
Tighten	95-100 Nm

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	42 Nm
Main bearings Stage 2	84-90 Nm
Big end bearings Renew bolts/nuts	No
Big end bearings Stage 1	15 Nm
Big end bearings Stage 2	30-35 Nm
Sump bolts	10 Nm
Sump drain bolt	30-40 Nm
Flywheel/driveplate	155-163 Nm
Inlet manifold to cylinder head	20-25 Nm
Exhaust manifold to cylinder head	15-25 Nm
Spark plugs	15-21 Nm
Chassis tightening torques
Brake caliper to carrier Front	90 Nm
Brake caliper/carrier to hub Front	100 Nm
Road wheels	—

Frequently asked questions

What is the firing order of the Mazda Econovan 1.4?

The firing order for the Mazda Econovan 1.4 (1982–1994) is 1-3-4-2.

What spark plugs does the Mazda Econovan 1.4 use?

The Mazda Econovan 1.4 (1982–1994) uses NGK BP6ES spark plugs with a 0,8 mm electrode gap.

How much oil does the Mazda Econovan 1.4 take?

The Mazda Econovan 1.4 (1982–1994) takes 4.1 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 Econovan 1.4?

Valve clearances for the Mazda Econovan 1.4 (1982–1994) are 0,30 mm inlet and 0,30 mm exhaust, measured cold.

What is the cylinder head torque for the Mazda Econovan 1.4?

The cylinder head bolts on the Mazda Econovan 1.4 (1982–1994) are tightened in 3 stages: 30-35 Nm, then 60-70 Nm, then a final 95-100 Nm.

What is the ignition timing for the Mazda Econovan 1.4?

Basic ignition timing for the Mazda Econovan 1.4 (1982–1994) is 5°±1° BTDC at 800 rpm.