Alfa Romeo1979–1983Technical specifications

6 2.5: Technical specifications

Workshop data for the 2.5-litre petrol (engine code 019.13). Covers engine, fluids, service and torques: the figures to check before a job or a parts order.

Summary

Match the engine code (019.13) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make
Alfa Romeo
Model
6
Years
1979–1983
Fuel
Petrol
Engine code
019.13

Performance & efficiency

Power
116 kW (158 hp)
Engine size
2,492 cc
Cylinders
6 · OHC
Compression ratio
9.0:1
Fuel system
Dellorto

Fluids & capacities

Engine oil (with the filter)
6.0 litres
All 87 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type6/OHC
Capacity (Fiscal) cc2492 (2464)
Compression ratio :19,0
Suitable for unleaded petrolYes
Minimum octane rating RON98/95
Ignition system MakeBosch
Ignition system TypeTSZ-i
Ignition system DescriptionTrans-i
Fuel system MakeDellorto
Fuel system TypeFBPA 40
Fuel system DescriptionCarb-2V

Ignition system

Ignition coil MakeBosch
Ignition coil Type0 221 122 015
Ignition coil supply voltage + with ballast V11,0
Primary resistance Ohm1,0-1,4
Distributor (ECM) MakeBosch
Distributor (ECM) No.0 237 303 001

Firing order

The firing order for the Alfa Romeo 6 2.5 (1979–1983) is 1-4-2-5-3-6.

Firing order1-4-2-5-3-6

Valve clearances

Valve clearances for the Alfa Romeo 6 2.5 (1979–1983) are 0,50 mm inlet and 0,25 mm exhaust, measured cold.

Valve clearance - INLET mm0,50 cold
Valve clearance - EXHAUST mm0,25 cold

Engine oil & fluids

Engine oil

The Alfa Romeo 6 2.5 (1979–1983) takes 6.0 litres of engine oil with the filter.

A listed engine oil option is SAE 10W-50 for moderate climates, with API/ACEA classification SE.

A listed engine oil option is SAE 15W-50 as an alternative for moderate climates.

Manual gearbox

The manual gearbox has a listed capacity of 1.6 litres. The specified oil is SAE 85W-90.

Coolant

The listed total cooling-system capacity is 13.0 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range Moderate climate
Engine oil grade SAE 10W-50
Engine oil classification API/ACEA SE
Ambient temperature range Moderate climate alternative
Engine oil grade SAE 15W-50
Engine with filter(s) litres 6.0
Other lubricants and capacities
Manual transmission oil grade SAE 85W-90
Manual transmission litres 1.6
Automatic transmission fluid Type Dexron
Automatic transmission (drain & refill) litres 6.5
Differential oil grade - rear SAE 90W
Differential rear litres 1.3
Cooling system - total capacity litres 13.0

Service & electrical

Battery

The Alfa Romeo 6 2.5 (1979–1983) uses a 12 V, 66 Ah battery (reserve capacity 110 minutes).

Battery V/RC(Ah)12/110 (66)

Spark plugs

The Alfa Romeo 6 2.5 (1979–1983) uses Lodge 2HL-E spark plugs with a 0,7 mm electrode gap.

Spark plugs Original equipmentLodge
Spark plug Type2HL-E
Electrode gap mm0,7
Spark plugs MakeAutolite
Spark plug Type62
Electrode gap mm0,7
Spark plugs MakeBosch
Spark plug TypeW7DC
Electrode gap mm0,7
Spark plugs MakeChampion
Spark plug TypeRN11YCC
Electrode gap mm0,8
Spark plugs MakeNGK
Spark plug TypeB7ES
Electrode gap mm0,6

Tuning and emissions

Ignition timingWithout vacuum
Ignition timing - basic BTDC °Engine/rpm7-10/925
Ignition timing - alternative °Engine/rpm95=4-7/925
Ignition advanceWithout vacuum and basic timing
Ignition advance checks °Engine/rpm31-34/5000
Ignition advance checks °Engine/rpm18-24/2700
Ignition advance checks °Engine/rpm24-30/4000
Idle speed rpm850-1000
Fast idle speed - MT/AT rpm1400-1600
Oil temperature °C70
CO level at idle speed - tailpipe Vol. % CO3,5 Max
HC level at idle speed ppm350
CO2 level at idle speed Vol. % CO213-16
O2 level at idle speed Vol. % O20,5-2,0

Starting and charging

Starter motor MakeBosch
Starter motor Type0 001 311 126
Minimum starting voltage V10,0
Maximum cranking amps A172-218
Alternator MakeBosch
Alternator Type0 120 489 906
Alternator output A/V/rpm65/14/2000
Voltage regulator Type0 192 052 013
Regulated voltage V13,7-14,5

Service checks and adjustments

Oil pressure bar/rpm4-6/5500
Thermostat opens °C81-85
Drive belt size - alternator mm9,5x925
Drive belt size - PAS/AC mm9,5x875

Fuel system

Fuel pump delivery pressure bar0,4

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Alfa Romeo 6 2.5 (1979–1983) are tightened in 2 stages: 78 Nm, then a final 88 Nm.

Cylinder head
Tighten78 Nm
TightenRun engine 1000 km
Tighten88 Nm
Cylinder head instructions—
Other engine tightening torques
Main bearings Stage 138-39 Nm
Main bearings Stage 276-78 Nm
Big end bearings Stage 123-25 Nm
Big end bearings Stage 246-51 Nm
Flywheel/driveplate113 Nm
Spark plugs25-34 Nm
Chassis tightening torques
Road wheels90-110 Nm

Frequently asked questions

What is the firing order of the Alfa Romeo 6 2.5?

The firing order for the Alfa Romeo 6 2.5 (1979–1983) is 1-4-2-5-3-6.

What spark plugs does the Alfa Romeo 6 2.5 use?

The Alfa Romeo 6 2.5 (1979–1983) uses Lodge 2HL-E spark plugs with a 0,7 mm electrode gap.

How much oil does the Alfa Romeo 6 2.5 take?

The Alfa Romeo 6 2.5 (1979–1983) takes 6.0 litres of engine oil with the filter. A listed engine oil option is SAE 10W-50 for moderate climates, with API/ACEA classification SE. A listed engine oil option is SAE 15W-50 as an alternative for moderate climates.

What are the valve clearances for the Alfa Romeo 6 2.5?

Valve clearances for the Alfa Romeo 6 2.5 (1979–1983) are 0,50 mm inlet and 0,25 mm exhaust, measured cold.

What is the cylinder head torque for the Alfa Romeo 6 2.5?

The cylinder head bolts on the Alfa Romeo 6 2.5 (1979–1983) are tightened in 2 stages: 78 Nm, then a final 88 Nm.

What battery does the Alfa Romeo 6 2.5 use?

The Alfa Romeo 6 2.5 (1979–1983) uses a 12 V, 66 Ah battery (reserve capacity 110 minutes).

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