Alfa Romeo1977–1979Technical specifications

Alfetta 2.0: Technical specifications

Workshop data for the 2-litre petrol (engine code 016.23). Covers engine, fluids, service and torques: the figures to check before a job or a parts order.

Summary

Match the engine code (016.23) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Alfa Romeo
Model: Alfetta
Years: 1977–1979
Fuel: Petrol
Engine code: 016.23

Performance & efficiency

Power: 89 kW (121 hp)
Engine size: 1,962 cc
Cylinders: 4 · OHC
Compression ratio: 9.0:1
Fuel system: Solex

Fluids & capacities

Engine oil (with the filter): 5.5 litres

All 84 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHC
Capacity (Fiscal) cc	1962 (1948)
Compression ratio :1	9,0
Suitable for unleaded petrol	No
Minimum octane rating RON	98
Ignition system Make	Bosch
Ignition system Type	SZ
Ignition system Description	CB
Fuel system Make	Solex
Fuel system Type	40 ADDHE
Fuel system Description	Carb-2V

Ignition system

Ignition coil Make	Bosch
Ignition coil Type	0 221 100 077
Ignition coil supply voltage + with ballast V	11,0
Primary resistance Ohm	1,7-2,2
Distributor (ECM) Make	Bosch
Distributor (ECM) No.	0 231 178 013
Contact breaker gap/trigger air gap mm	0,45
Dwell angle °(%)	64-68 (71-76)

Firing order

The firing order for the Alfa Romeo Alfetta 2.0 (1977–1979) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Alfa Romeo Alfetta 2.0 (1977–1979) are 0,50 mm inlet and 0,55 mm exhaust, measured cold.

Valve clearance - INLET mm	0,50 cold
Valve clearance - EXHAUST mm	0,55 cold

Engine oil & fluids

Engine oil

The Alfa Romeo Alfetta 2.0 (1977–1979) takes 5.5 litres of engine oil with the filter. The specified engine oil grade is SAE 10W-50 for moderate climates, with API/ACEA classification SE.

Manual gearbox

The manual gearbox has a listed capacity of 3.0 litres.

Coolant

The listed total cooling-system capacity is 8.0 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
Engine with filter(s) litres	5.5
Other lubricants and capacities
Manual transmission litres	3.0
Cooling system - total capacity litres	8.0

Service & electrical

Ignition timing

Basic ignition timing for the Alfa Romeo Alfetta 2.0 (1977–1979) is 7°±1° BTDC at 850 rpm.

Ignition timing	Without vacuum
Ignition timing - basic BTDC °Engine/rpm	7±1/850

Battery

The Alfa Romeo Alfetta 2.0 (1977–1979) uses a 12 V, 60 Ah battery (reserve capacity 90 minutes).

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

Spark plugs

The Alfa Romeo Alfetta 2.0 (1977–1979) uses Lodge 2HL spark plugs with a 0,55 mm electrode gap.

Spark plugs Original equipment	Lodge
Spark plug Type	2HL
Electrode gap mm	0,55
Spark plugs Make	Beru
Spark plug Type	14-7DU
Electrode gap mm	0,8
Spark plugs Make	Bosch
Spark plug Type	W7DC
Electrode gap mm	0,7
Spark plugs Make	Champion
Spark plug Type	N4C
Electrode gap mm	0,7
Spark plugs Make	NGK
Spark plug Type	B7ES
Electrode gap mm	0,7

Tuning and emissions

Ignition advance	Without vacuum and basic timing
Ignition advance checks °Engine/rpm	35-38/5100
Ignition advance checks °Engine/rpm	9-15/2000
Ignition advance checks °Engine/rpm	17-23/3400
Idle speed rpm	850-1000
Fast idle speed - MT/AT rpm	1400-1700
Oil temperature °C	70
CO level at idle speed - tailpipe Vol. % CO	3,5 Max
HC level at idle speed ppm	400
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	Bosch
Starter motor Type	0 001 311 110
Minimum starting voltage V	10,0
Maximum cranking amps A	162-198
Alternator Make	Bosch
Alternator Type	0 120 400 848
Alternator output A/V/rpm	45/14/2000
Voltage regulator Type	0 190 601 006
Regulated voltage V	13,9-14,8

Service checks and adjustments

Oil pressure bar/rpm	3,5-5,0
Thermostat opens °C	82
Drive belt size - alternator mm	9,5x813
Drive belt tension - alternator/PAS/AC mm	10

Fuel system

Fuel pump delivery pressure bar	0,4

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Alfa Romeo Alfetta 2.0 (1977–1979) are tightened in 3 stages: 77-79 Nm, then 82-83 Nm, then a final 86-88 Nm.

Cylinder head
Tighten	77-79 Nm
Tighten	Run engine 15 minutes
Tighten	82-83 Nm
Tighten	Run engine 1000 km
Tighten	Loosen
Tighten	86-88 Nm

Other engine tightening torques
Cylinder head instructions	—
Main bearings Stage 1	23-25 Nm
Main bearings Stage 2	47-50 Nm
Big end bearings Stage 1	25-26 Nm
Big end bearings Stage 2	50-53 Nm
Flywheel/driveplate	97-100 Nm
Spark plugs	25-35 Nm
Chassis tightening torques
Road wheels	60-80 Nm

Frequently asked questions

What is the firing order of the Alfa Romeo Alfetta 2.0?

The firing order for the Alfa Romeo Alfetta 2.0 (1977–1979) is 1-3-4-2.

What spark plugs does the Alfa Romeo Alfetta 2.0 use?

The Alfa Romeo Alfetta 2.0 (1977–1979) uses Lodge 2HL spark plugs with a 0,55 mm electrode gap.

How much oil does the Alfa Romeo Alfetta 2.0 take?

The Alfa Romeo Alfetta 2.0 (1977–1979) takes 5.5 litres of engine oil with the filter. The specified engine oil grade is SAE 10W-50 for moderate climates, with API/ACEA classification SE.

What are the valve clearances for the Alfa Romeo Alfetta 2.0?

Valve clearances for the Alfa Romeo Alfetta 2.0 (1977–1979) are 0,50 mm inlet and 0,55 mm exhaust, measured cold.

What is the cylinder head torque for the Alfa Romeo Alfetta 2.0?

The cylinder head bolts on the Alfa Romeo Alfetta 2.0 (1977–1979) are tightened in 3 stages: 77-79 Nm, then 82-83 Nm, then a final 86-88 Nm.

What is the ignition timing for the Alfa Romeo Alfetta 2.0?

Basic ignition timing for the Alfa Romeo Alfetta 2.0 (1977–1979) is 7°±1° BTDC at 850 rpm.