Honda1987–1991Technical specifications

Legend 2.7: Technical specifications

Workshop data for the 2.7-litre petrol (engine code C27A1). 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 (C27A1) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Honda
Model: Legend
Years: 1987–1991
Fuel: Petrol
Engine code: C27A1

Performance & efficiency

Power: 132 kW (179 hp)
Engine size: 2,675 cc
Cylinders: 6 · OHC
Compression ratio: 9.0:1
Fuel system: Honda

Fluids & capacities

Engine oil (with the filter): 4.5 litres

All 120 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	6/OHC
Capacity (Fiscal) cc	2675 (2656)
Compression ratio :1	9,0
Suitable for unleaded petrol	Yes
Minimum octane rating RON	95
Ignition system Type	PGM-FI
Ignition system Description	Map-i
Trigger location	Distributor/Crankshaft
Fuel system Make	Honda
Fuel system Type	PGM-FI
Fuel system Description	MFI-s
Air metering Type	MAP
Combined ignition and fuel ECM	Yes
Diagnostic socket	Yes

Ignition system

Ignition coil supply voltage + with ballast V	12,0
Primary resistance Ohm	0,32-0,38
Secondary resistance Ohm	9000-13600

Firing order

The firing order for the Honda Legend 2.7 (1987–1991) is 1-4-2-5-3-6.

Firing order	1-4-2-5-3-6

Valve clearances

Valve clearances on the Honda Legend 2.7 (1987–1991) are hydraulic — they self-adjust, so no manual clearance figure applies.

Valve clearance - INLET mm	Hydraulic
Valve clearance - EXHAUST mm	Hydraulic

Engine oil & fluids

Engine oil

The Honda Legend 2.7 (1987–1991) takes 4.5 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 2.2 litres.

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

Coolant

The listed total cooling-system capacity is 8.8 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	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	4.5
Other lubricants and capacities
Manual transmission oil grade SAE	10W-30, 10W-40
Manual transmission litres	2.2
Automatic transmission fluid Type	Dexron II
Automatic transmission (drain & refill) litres	3.2
Cooling system - total capacity litres	8.8

Brakes & wear limits

Brake disc thickness

Brake discs on the Honda Legend 2.7 (1987–1991) 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

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	0,10 mm
Minimum pad thickness Front	3 mm
Minimum pad thickness Rear	1,6 mm
Parking brake travel No. of notches	7-11

Service & electrical

Ignition timing

Basic ignition timing for the Honda Legend 2.7 (1987–1991) is 15°±2° BTDC at 800 rpm.

Ignition timing
Ignition timing - basic BTDC °Engine/rpm	15±2/800

Battery

The Honda Legend 2.7 (1987–1991) uses a 12 V, 60 Ah battery (reserve capacity 90 minutes).

Battery V/RC(Ah)	12/90 (60)

Spark plugs

The Honda Legend 2.7 (1987–1991) uses NGK BCPR6E-11 Coupe=BCPR6EY-11 spark plugs with a 1,1 mm electrode gap.

Spark plugs Original equipment	NGK
Spark plug Type	BCPR6E-11 Coupe=BCPR6EY-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 Coupe=BCPR6EY-11
Electrode gap mm	1,1

Tuning and emissions

Ignition timing
Tuning conditions	—
View more information	—
Ignition advance checks °Engine/rpm	ECM Controlled
Idle speed rpm	680±50
Oil temperature °C	80
CO level at idle speed - tailpipe (Cat) Vol. % CO	0,1 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	2300-2700
CO content at increased idle speed Vol. %	0,3
Lambda at increased idle λ	0,97-1,03

Starting and charging

Starter motor Make	ND/Mitsuba
Starter motor Type	1,6 kW/1,4 kW
Maximum cranking amps A	162-198
Alternator Make	Nippon Denso
Alternator Type	70A
Alternator output A/V/rpm	70/13,5/2000
Regulated voltage V	13,9-15,1

Service checks and adjustments

Compression pressure bar	10,0-12,0
Oil pressure bar/rpm	5,0-5,8/3000

Fuel system

System pressure bar	2,55-2,85
Crankshaft position (CKP) sensor/engine speed (RPM) sensor Ohm	500-1000
Injector Ohm	1,5-2,5
Idle air control (IAC) valve/idle speed control (ISC) actuator Ohm	8,0-15,0

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Honda Legend 2.7 (1987–1991) are tightened in 2 stages: 40 Nm, then a final 78 Nm.

Cylinder head
Renew bolts	No
Tighten	40 Nm
Tighten	78 Nm

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	—
Main bearings
Big end bearings Renew bolts/nuts	No
Big end bearings Stage 1	23 Nm
Big end bearings Stage 2	45 Nm
Oil pump to cylinder block	—
Oil pump to cylinder block
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	115 Nm
Camshaft sprocket/gear	32 Nm
Camshaft carrier/cap	—
Camshaft carrier bolts
Camshaft/rocker cover	15 Nm
Inlet manifold to cylinder head	22 Nm
Exhaust manifold to cylinder head	34 Nm
Spark plugs	22 Nm
Lambda sensor (Oxygen)	45 Nm
Chassis tightening torques
Front hub	250 Nm
Rear hub	250 Nm
Steering track rod end	44 Nm
Brake caliper to carrier Front	33 Nm
Brake caliper/carrier to hub Front	—
Carrier to hub front
Brake caliper to carrier Rear	—
Caliper to carrier - rear
Brake caliper/carrier to hub Rear	39 Nm
ABS sensor Front	22 Nm
ABS sensor Rear	—
ABS wheel speed sensor
Road wheels	108 Nm

Air conditioning

Air conditioning refrigerant Type	R12
Air conditioning refrigerant quantity grams	900±50
Air conditioning oil quantity cm³	—

Frequently asked questions

What is the firing order of the Honda Legend 2.7?

The firing order for the Honda Legend 2.7 (1987–1991) is 1-4-2-5-3-6.

What spark plugs does the Honda Legend 2.7 use?

The Honda Legend 2.7 (1987–1991) uses NGK BCPR6E-11 Coupe=BCPR6EY-11 spark plugs with a 1,1 mm electrode gap.

How much oil does the Honda Legend 2.7 take?

The Honda Legend 2.7 (1987–1991) takes 4.5 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 Legend 2.7?

Valve clearances on the Honda Legend 2.7 (1987–1991) are hydraulic — they self-adjust, so no manual clearance figure applies.

What is the cylinder head torque for the Honda Legend 2.7?

The cylinder head bolts on the Honda Legend 2.7 (1987–1991) are tightened in 2 stages: 40 Nm, then a final 78 Nm.

What is the ignition timing for the Honda Legend 2.7?

Basic ignition timing for the Honda Legend 2.7 (1987–1991) is 15°±2° BTDC at 800 rpm.