Engine & identification
Vehicle identification
| No. of cylinders Type | 4/OHC |
|---|---|
| Capacity (Fiscal) cc | 1779 (1767) |
| Compression ratio :1 | 9,5 |
| Suitable for unleaded petrol | Yes |
| Minimum octane rating RON | 98/95 |
| Ignition system Make | Bosch |
| Ignition system Type | SZ |
| Ignition system Description | CB |
| Fuel system Make | Weber |
| Fuel system Type | 40 DCOE |
| Fuel system Description | Carb-2V |
Ignition system
| Ignition coil Make | Bosch |
|---|---|
| Ignition coil Type | 0 221 119 008 |
| Ignition coil supply voltage + with ballast V | 11,0 |
| Primary resistance Ohm | 2,8-3,4 |
| Distributor (ECM) Make | Bosch |
| Distributor (ECM) No. | 0 231 170 229 |
| Contact breaker gap/trigger air gap mm | 0,3-0,4 |
| Dwell angle °(%) | 59-65 (66-72) |
Firing order
The firing order for the Alfa Romeo Alfetta 1.8 (1979–1981) is 1-3-4-2.
| Firing order | 1-3-4-2 |
|---|
Valve clearances
Valve clearances for the Alfa Romeo Alfetta 1.8 (1979–1981) are 0,40-0,45 mm inlet and 0,45-0,50 mm exhaust, measured cold.
| Valve clearance - INLET mm | 0,40-0,45 cold |
|---|---|
| Valve clearance - EXHAUST mm | 0,45-0,50 cold |
Engine oil & fluids
Engine oil
The Alfa Romeo Alfetta 1.8 (1979–1981) takes 6.5 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
| 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 | 6.5 |
| 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 1.8 (1979–1981) is 7°±1° BTDC at 850 rpm.
| Ignition timing | Without vacuum |
|---|---|
| Ignition timing - basic BTDC °Engine/rpm | 7±1/850 |
| Ignition timing - alternative °Engine/rpm | 95=4±1/850 |
Battery
The Alfa Romeo Alfetta 1.8 (1979–1981) uses a 12 V, 60 Ah battery (reserve capacity 90 minutes).
| Battery V/RC(Ah) | 12/90 (60) |
|---|
Spark plugs
The Alfa Romeo Alfetta 1.8 (1979–1981) uses Beru 14-7DU spark plugs with a 0,8 mm electrode gap.
| Spark plugs Original equipment | Lodge |
|---|---|
| Spark plug Type | 2HL |
| Electrode gap mm | 0,5-0,6 |
| 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 | RN7YCC |
| 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 | 14-20/3000 |
| Ignition advance checks °Engine/rpm | 27-33/5100 |
| Vacuum check | Ignition timing advances |
| Vacuum range °Engine | 14-19 |
| Vacuum starts mbar | 133 |
| Vacuum ends mbar | 282 |
| 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 | Paris Rhone |
|---|---|
| Starter motor Type | D8E 190 12V |
| 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 1.8 (1979–1981) are tightened in 3 stages: 71-73 Nm, then 75-76 Nm, then a final 76-78 Nm.
| Cylinder head | |
|---|---|
| Tighten | 71-73 Nm |
| Tighten | Run engine 15 minutes |
| Tighten | 75-76 Nm |
| Tighten | Run engine 1000 km |
| Tighten | Loosen |
| Tighten | 76-78 Nm |
| Cylinder head instructions | — |
|---|---|
| Other engine tightening torques | |
| 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 | 90-110 Nm |
Frequently asked questions
What is the firing order of the Alfa Romeo Alfetta 1.8?
The firing order for the Alfa Romeo Alfetta 1.8 (1979–1981) is 1-3-4-2.
What spark plugs does the Alfa Romeo Alfetta 1.8 use?
The Alfa Romeo Alfetta 1.8 (1979–1981) uses Beru 14-7DU spark plugs with a 0,8 mm electrode gap.
How much oil does the Alfa Romeo Alfetta 1.8 take?
The Alfa Romeo Alfetta 1.8 (1979–1981) takes 6.5 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 1.8?
Valve clearances for the Alfa Romeo Alfetta 1.8 (1979–1981) are 0,40-0,45 mm inlet and 0,45-0,50 mm exhaust, measured cold.
What is the cylinder head torque for the Alfa Romeo Alfetta 1.8?
The cylinder head bolts on the Alfa Romeo Alfetta 1.8 (1979–1981) are tightened in 3 stages: 71-73 Nm, then 75-76 Nm, then a final 76-78 Nm.
What is the ignition timing for the Alfa Romeo Alfetta 1.8?
Basic ignition timing for the Alfa Romeo Alfetta 1.8 (1979–1981) is 7°±1° BTDC at 850 rpm.