Engine & identification
Vehicle identification
| No. of cylinders Type | 4/OHC |
|---|---|
| Capacity (Fiscal) cc | 1290 |
| Compression ratio :1 | 8,5 |
| Suitable for unleaded petrol | No |
| Minimum octane rating RON | 98 |
| Ignition system Make | Marelli |
| Ignition system Type | SZ |
| Ignition system Description | CB |
| Fuel system Make | Weber |
| Fuel system Type | 45 DCOE |
| Fuel system Description | Carb-2V |
Ignition system
| Ignition coil Make | Marelli |
|---|---|
| Ignition coil Type | BZ 200 |
| Ignition coil supply voltage + with ballast V | 11,0 |
| Primary resistance Ohm | 3,1-3,6 |
| Distributor (ECM) Make | Marelli |
| Distributor (ECM) No. | S 132A |
| Contact breaker gap/trigger air gap mm | 0,35 |
| Dwell angle °(%) | 57-63 (63-70) |
Firing order
The firing order for the Alfa Romeo Junior GT 1.3 (1968–1977) is 1-3-2-4.
| Firing order | 1-3-2-4 |
|---|
Valve clearances
Valve clearances for the Alfa Romeo Junior GT 1.3 (1968–1977) 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 Junior GT 1.3 (1968–1977) takes 7.0 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 2.0 litres.
Coolant
The listed total cooling-system capacity is 7.0 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 | 7.0 |
| Other lubricants and capacities | |
| Manual transmission litres | 2.0 |
| Differential rear litres | 1.5 |
| Cooling system - total capacity litres | 7.0 |
Service & electrical
Battery
The Alfa Romeo Junior GT 1.3 (1968–1977) uses a 12 V, 60 Ah battery (reserve capacity 90 minutes).
| Battery V/RC(Ah) | 12/90 (60) |
|---|
Spark plugs
The Alfa Romeo Junior GT 1.3 (1968–1977) uses Lodge 2HL spark plugs with a 0,6 mm electrode gap.
| Spark plugs Original equipment | Lodge |
|---|---|
| Spark plug Type | 2HL |
| Electrode gap mm | 0,6 |
| Spark plugs Make | Bosch |
| Spark plug Type | W5DC |
| Electrode gap mm | 0,7 |
| Spark plugs Make | Champion |
| Spark plug Type | RN7YCC |
| Electrode gap mm | 0,7 |
Tuning and emissions
| Static timing | 4-6 |
|---|---|
| Ignition timing | Without vacuum |
| Ignition timing - basic BTDC °Engine/rpm | 27-31/5000 |
| Ignition advance | Without vacuum and basic timing |
| Ignition advance checks °Engine/rpm | 0/750 |
| Ignition advance checks °Engine/rpm | 17-19/1500 |
| Ignition advance checks °Engine/rpm | 23-27/3000 |
| Idle speed rpm | 600-700 |
| Oil temperature °C | 70 |
| CO level at idle speed - tailpipe Vol. % CO | 2,0-4,0 |
Starting and charging
| Starter motor Make | Bosch |
|---|---|
| Starter motor Type | 0 001 211 004 |
| Minimum starting voltage V | 9,0 |
| Maximum cranking amps A | 135-165 |
| Alternator Make | Bosch |
| Alternator output A/V/rpm | 45/14/2000 |
| Voltage regulator Type | 0 190 350 023 |
| Regulated voltage V | 13,7-14,5 |
Service checks and adjustments
| Thermostat opens °C | 82 |
|---|---|
| Drive belt size - alternator mm | 9,5x735 |
| 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 Junior GT 1.3 (1968–1977) are tightened in 2 stages: 62-64 Nm, then a final 66-67 Nm.
| Cylinder head | |
|---|---|
| Tighten | 62-64 Nm |
| Tighten | 66-67 Nm |
| Cylinder head instructions | — |
|---|---|
| Other engine tightening torques | |
| Main bearings Stage 1 | 16-17 Nm |
| Main bearings Stage 2 | 32-35 Nm |
| Big end bearings Stage 1 | 17-18 Nm |
| Big end bearings Stage 2 | 34-36 Nm |
| Flywheel/driveplate | 42-45 Nm |
| Spark plugs | 25-35 Nm |
| Chassis tightening torques | |
| Road wheels | 65-80 Nm |
Frequently asked questions
What is the firing order of the Alfa Romeo Junior GT 1.3?
The firing order for the Alfa Romeo Junior GT 1.3 (1968–1977) is 1-3-2-4.
What spark plugs does the Alfa Romeo Junior GT 1.3 use?
The Alfa Romeo Junior GT 1.3 (1968–1977) uses Lodge 2HL spark plugs with a 0,6 mm electrode gap.
How much oil does the Alfa Romeo Junior GT 1.3 take?
The Alfa Romeo Junior GT 1.3 (1968–1977) takes 7.0 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 Junior GT 1.3?
Valve clearances for the Alfa Romeo Junior GT 1.3 (1968–1977) are 0,50 mm inlet and 0,55 mm exhaust, measured cold.
What is the cylinder head torque for the Alfa Romeo Junior GT 1.3?
The cylinder head bolts on the Alfa Romeo Junior GT 1.3 (1968–1977) are tightened in 2 stages: 62-64 Nm, then a final 66-67 Nm.
What battery does the Alfa Romeo Junior GT 1.3 use?
The Alfa Romeo Junior GT 1.3 (1968–1977) uses a 12 V, 60 Ah battery (reserve capacity 90 minutes).