Honda1990–1993Technical specifications

Concerto 1.6: Technical specifications

Workshop data for the 1.6-litre petrol (engine code D16Z1). Covers engine, fluids, brakes, service, torques and air conditioning: the figures to check before a job or a parts order.

Common faults & fixes

Summary

Match the engine code (D16Z1) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Honda
Model: Concerto
Years: 1990–1993
Fuel: Petrol
Engine code: D16Z1

Performance & efficiency

Power: 78 kW (106 hp)
Engine size: 1,590 cc
Cylinders: 4 · OHC
Compression ratio: 9.3:1
Fuel system: Keihin

Fluids & capacities

Engine oil (with the filter): 3.5 litres

All 133 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHC
Capacity (Fiscal) cc	1590 (1579)
Compression ratio :1	9,3
Suitable for unleaded petrol	Yes
Minimum octane rating RON	91
Ignition system Type	TSZ-i
Ignition system Description	Trans-i
Trigger location	Distributor
Fuel system Make	Keihin
Fuel system Description	Carb-VV
Diagnostic socket	No

Ignition system

Ignition coil Make	Hitachi
Ignition coil supply voltage + with ballast V	12,0
Primary resistance Ohm	0,6-0,7
Secondary resistance Ohm	14400-21600
Distributor (ECM) Make	Hitachi

Firing order

The firing order for the Honda Concerto 1.6 (1990–1993) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Honda Concerto 1.6 (1990–1993) are 0,17-0,22 mm inlet and 0,22-0,27 mm exhaust, measured cold.

Valve clearance - INLET mm	0,17-0,22 cold
Valve clearance - EXHAUST mm	0,22-0,27 cold

Engine oil & fluids

Engine oil

The Honda Concerto 1.6 (1990–1993) 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 1.8 litres.

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

Coolant

The listed total cooling-system capacity is 5.5 litres.

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	SH/A2
Ambient temperature range	-20°C➞35°C
Engine oil grade SAE	10W-30
Engine oil classification API/ACEA	SH/A2
Ambient temperature range	-20°C➞
Engine oil grade SAE	10W-40
Engine oil classification API/ACEA	SH/A2
Ambient temperature range	-15°C➞
Engine oil grade SAE	15W-40, 15W-50
Engine oil classification API/ACEA	SH/A2
Ambient temperature range	-10°C➞
Engine oil grade SAE	20W-40, 20W-50
Engine oil classification API/ACEA	SH/A2
Engine with filter(s) litres	3.5
Other lubricants and capacities
Manual transmission oil grade SAE	10W-30, 10W-40
Manual transmission litres	1.8
Automatic transmission fluid Type	Dexron II
Automatic transmission (drain & refill) litres	2.4
Cooling system - total capacity litres	5.5
Brake fluid Type	DOT 3/4
Power steering fluid Type	Dexron II
Power steering fluid litres	1.2

Brakes & wear limits

Brake disc thickness

Brake discs on the Honda Concerto 1.6 (1990–1993) are replaced at a minimum thickness of 19 mm (ventilated) front and 8 mm rear.

Minimum disc thickness for replacement - ventilated Front	19 mm
Minimum disc thickness for replacement Rear	8 mm
Maximum drum diameter for replacement Rear	204 mm

Brake disc and drum dimensions

Disc thickness variation Front	0,015 mm
Disc thickness variation Rear	0,015 mm
Disc runout Front	0,10 mm
Disc runout Rear	0,15 mm
Minimum pad thickness Front	1,6 mm
Minimum pad thickness Rear	1,6 mm
Minimum shoe thickness Rear	2 mm
Parking brake travel No. of notches	6-10

Service & electrical

Ignition timing

Basic ignition timing for the Honda Concerto 1.6 (1990–1993) is 2° BTDC at 750 rpm.

Ignition timing	Without vacuum
Ignition timing - basic BTDC °Engine/rpm	2/750

Battery

The Honda Concerto 1.6 (1990–1993) uses a 12 V, 47 Ah battery (reserve capacity 65 minutes).

Battery V/RC(Ah)	12/65 (47)

Spark plugs

The Honda Concerto 1.6 (1990–1993) uses NGK BCPR6E-11 spark plugs with a 1,1 mm electrode gap.

Spark plugs Original equipment	NGK
Spark plug Type	BCPR6E-11
Electrode gap mm	1,1
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	RC9YCC4
Electrode gap mm	1,1
Spark plugs Make	NGK
Spark plug Type	BCPR6E-11
Electrode gap mm	1,1

Tuning and emissions

Ignition advance	With vacuum and basic timing
Ignition advance checks °Engine/rpm	14-18/750
Idle speed rpm	750±50
Idle speed - alternative rpm	AT=700±50
Fast idle speed - MT/AT rpm	1600-2000
Oil temperature °C	60
CO level at idle speed - tailpipe Vol. % CO	1,0 Max
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 Make	Mitsuba
Starter motor Type	1,4 kW
Maximum cranking amps A	127-155
Alternator Make	ND/Mitsubishi
Alternator output A/V/rpm	60/13,5/4000
Regulated voltage V	13,9-15,1

Service checks and adjustments

Compression pressure bar	9,3-12,7
Oil pressure bar/rpm	3,4/3000
Radiator cap bar	0,74-1,03
Thermostat opens °C	76-80
Drive belt tension - alternator/PAS/AC mm	9-11

Fuel system

Fuel pump delivery pressure bar	0,07-0,23

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Honda Concerto 1.6 (1990–1993) are tightened in 2 stages: 30 Nm, then a final 65 Nm.

Cylinder head
Renew bolts	No
Tighten	30 Nm
Tighten	65 Nm

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	36 Nm
Main bearings Stage 2	67 Nm
Big end bearings Renew bolts/nuts	No
Big end bearings Stage 1	16 Nm
Big end bearings Stage 2	32 Nm
Oil pump to cylinder block	11 Nm
Sump bolts	1)6 Nm 2)12 Nm
Sump drain bolt	45 Nm
Flywheel/driveplate	120 Nm/75 Nm
Clutch pressure plate	26 Nm
Crankshaft pulley/damper centre bolt	165 Nm
Camshaft sprocket/gear	38 Nm
Camshaft carrier/cap	—
Camshaft carrier caps
Camshaft/rocker cover	10 Nm
Inlet manifold to cylinder head	23 Nm
Exhaust manifold to cylinder head	34 Nm
Spark plugs	18 Nm
Chassis tightening torques
Front hub	185 Nm
Rear hub	185 Nm
Steering track rod end	44 Nm
Brake disc to hub Front	9 Nm
Brake caliper to carrier Front	27 Nm
Brake caliper/carrier to hub Front	78 Nm
Brake disc to hub Rear	9 Nm
Brake caliper to carrier Rear	27 Nm
Brake caliper/carrier to hub Rear	39 Nm
Back plate to hub Rear	65 Nm
ABS sensor Front	10 Nm
ABS sensor Rear	10 Nm
Road wheels	110 Nm

Air conditioning

Refrigerant type
Air conditioning refrigerant Type	R12
Air conditioning refrigerant quantity grams	900±50
Refrigerant quantity
Air conditioning oil Type	—
Oil type
Air conditioning oil quantity cm³	130

Frequently asked questions

What is the firing order of the Honda Concerto 1.6?

The firing order for the Honda Concerto 1.6 (1990–1993) is 1-3-4-2.

What spark plugs does the Honda Concerto 1.6 use?

The Honda Concerto 1.6 (1990–1993) uses NGK BCPR6E-11 spark plugs with a 1,1 mm electrode gap.

How much oil does the Honda Concerto 1.6 take?

The Honda Concerto 1.6 (1990–1993) 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 Honda Concerto 1.6?

Valve clearances for the Honda Concerto 1.6 (1990–1993) are 0,17-0,22 mm inlet and 0,22-0,27 mm exhaust, measured cold.

What is the cylinder head torque for the Honda Concerto 1.6?

The cylinder head bolts on the Honda Concerto 1.6 (1990–1993) are tightened in 2 stages: 30 Nm, then a final 65 Nm.

What is the ignition timing for the Honda Concerto 1.6?

Basic ignition timing for the Honda Concerto 1.6 (1990–1993) is 2° BTDC at 750 rpm.