Honda1990–1991Technical specifications

Accord 1.8: Technical specifications

Workshop data for the 1.8-litre petrol (engine code F18A2). 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 (F18A2) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Honda
Model: Accord
Years: 1990–1991
Fuel: Petrol
Engine code: F18A2

Performance & efficiency

Power: 73 kW (99 hp)
Engine size: 1,849 cc
Cylinders: 4 · OHC
Compression ratio: 9.0:1
Fuel system: Keihin

Fluids & capacities

Engine oil (with the filter): 3.8 litres

All 128 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHC
Capacity (Fiscal) cc	1849 (1837)
Compression ratio :1	9,0
Suitable for unleaded petrol	Yes
Minimum octane rating RON	95
Ignition system Type	TSZ-i
Ignition system Description	Trans-i
Trigger location	Distributor
Fuel system Make	Keihin
Fuel system Description	Carb-2V
Diagnostic socket	No

Ignition system

Ignition coil Make	Hitachi
Ignition coil supply voltage + with ballast V	12,0
Primary resistance Ohm	0,5-0,7
Secondary resistance Ohm	14400-21600
Distributor (ECM) Make	Hitachi

Firing order

The firing order for the Honda Accord 1.8 (1990–1991) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Honda Accord 1.8 (1990–1991) are 0,24-0,28 mm inlet and 0,28-0,32 mm exhaust, measured cold.

Valve clearance - INLET mm	0,24-0,28 cold
Valve clearance - EXHAUST mm	0,28-0,32 cold

Engine oil & fluids

Engine oil

The Honda Accord 1.8 (1990–1991) takes 3.8 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 1.9 litres.

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

Coolant

The listed total cooling-system capacity is 6.6 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	➞35°C
Engine oil grade SAE	5W-30
Engine oil classification API/ACEA	SG/A2
Ambient temperature range	-20°C➞35°C
Engine oil grade SAE	10W-30
Engine oil classification API/ACEA	SG/A2
Ambient temperature range	-20°C➞
Engine oil grade SAE	10W-40
Engine oil classification API/ACEA	SG/A2
Ambient temperature range	-15°C➞
Engine oil grade SAE	15W-40, 15W-50
Engine oil classification API/ACEA	SG/A2
Ambient temperature range	-10°C➞
Engine oil grade SAE	20W-40, 20W-50
Engine oil classification API/ACEA	SG/A2
Engine with filter(s) litres	3.8
Other lubricants and capacities
Manual transmission oil grade SAE	10W-30, 10W-40
Manual transmission litres	1.9
Automatic transmission fluid Type	Dexron II
Automatic transmission (drain & refill) litres	2.4
Cooling system - total capacity litres	6.6
Brake fluid Type	DOT 3/4
Power steering fluid Type	Honda PAS
Power steering fluid litres	1.1

Brakes & wear limits

Brake disc thickness

Brake discs on the Honda Accord 1.8 (1990–1991) are replaced at a minimum thickness of 21 mm (ventilated) front and 8 mm rear.

Minimum disc thickness for replacement - ventilated Front	21 mm
Minimum disc thickness for replacement Rear	8 mm
Maximum drum diameter for replacement Rear	221 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	4-8

Service & electrical

Ignition timing

Basic ignition timing for the Honda Accord 1.8 (1990–1991) is 0° BTDC at 800 rpm.

Ignition timing	Without vacuum
Ignition timing - basic BTDC °Engine/rpm	0/800

Battery

The Honda Accord 1.8 (1990–1991) uses a 12 V, 45 Ah battery (reserve capacity 65 minutes).

Battery V/RC(Ah)	12/65 (45)

Spark plugs

The Honda Accord 1.8 (1990–1991) uses NGK ZFR6F-11 spark plugs with a 1,1 mm electrode gap.

Spark plugs Original equipment	NGK
Spark plug Type	ZFR6F-11
Electrode gap mm	1,1
Spark plugs Make	Autolite
Spark plug Type	APP3924
Electrode gap mm	1,0
Spark plugs Make	Beru
Spark plug Type	UXF79
Spark plugs Make	Bosch
Spark plug Type	FR7LCX
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	ZFR6F-11
Electrode gap mm	1,1

Tuning and emissions

Idle speed rpm	800±50
Idle speed - alternative rpm	AT=750±50
Fast idle speed - MT/AT rpm	1400
Oil temperature °C	60
CO level at idle speed - tailpipe Vol. % CO	1,0±1,0
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	1,4/1,6 kW
Maximum cranking amps A	122-149
Alternator Make	Nippon Denso
Alternator output A/V/rpm	70/13,5/2000
Regulated voltage V	13,9-15,1

Service checks and adjustments

Compression pressure bar	9,3-12,0
Oil pressure bar/rpm	3,4/3000
Radiator cap bar	0,88-1,23
Thermostat opens °C	78±2
Drive belt tension - alternator/PAS/AC mm	10-12/13-16

Fuel system

Fuel pump delivery pressure bar	0,09-0,14

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Honda Accord 1.8 (1990–1991) are tightened in 3 stages: 40 Nm, then 70 Nm, then a final 108 Nm.

Cylinder head
Renew bolts	No
Tighten	40 Nm
Tighten	70 Nm
Tighten	108 Nm

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	36 Nm
Main bearings Stage 2	72 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	12 Nm
Sump bolts	1)7 Nm 2)14 Nm
Sump drain bolt	45 Nm
Flywheel/driveplate	105 Nm/75 Nm
Clutch pressure plate	26 Nm
Crankshaft pulley/damper centre bolt	220 Nm
Camshaft sprocket/gear	38 Nm
Camshaft carrier/cap	—
Camshaft carrier caps
Camshaft/rocker cover	10 Nm
Inlet manifold to cylinder head	22 Nm
Exhaust manifold to cylinder head	32 Nm
Spark plugs	18 Nm
Chassis tightening torques
Front hub	245 Nm
Rear hub	185 Nm
Steering track rod end	44 Nm
Brake disc to hub Front	55 Nm
Brake caliper to carrier Front	50 Nm
Brake caliper/carrier to hub Front	78 Nm
Brake disc to hub Rear	10 Nm
ABS sensor Front	22 Nm
ABS sensor Rear	22 Nm
Road wheels	108 Nm

Air conditioning

Refrigerant quantity
Air conditioning refrigerant Type	R12
Air conditioning refrigerant quantity grams	900±25
Air conditioning oil quantity cm³	105±15

Frequently asked questions

What is the firing order of the Honda Accord 1.8?

The firing order for the Honda Accord 1.8 (1990–1991) is 1-3-4-2.

What spark plugs does the Honda Accord 1.8 use?

The Honda Accord 1.8 (1990–1991) uses NGK ZFR6F-11 spark plugs with a 1,1 mm electrode gap.

How much oil does the Honda Accord 1.8 take?

The Honda Accord 1.8 (1990–1991) takes 3.8 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 Accord 1.8?

Valve clearances for the Honda Accord 1.8 (1990–1991) are 0,24-0,28 mm inlet and 0,28-0,32 mm exhaust, measured cold.

What is the cylinder head torque for the Honda Accord 1.8?

The cylinder head bolts on the Honda Accord 1.8 (1990–1991) are tightened in 3 stages: 40 Nm, then 70 Nm, then a final 108 Nm.

What is the ignition timing for the Honda Accord 1.8?

Basic ignition timing for the Honda Accord 1.8 (1990–1991) is 0° BTDC at 800 rpm.