Engine & identification
Vehicle identification
| No. of cylinders Type | 4/DOHC |
|---|---|
| Capacity (Fiscal) cc | 1970 |
| Compression ratio :1 | 11,3 |
| Suitable for unleaded petrol | Yes |
| Minimum octane rating RON | 95 |
| Ignition system Make | Bosch |
| Ignition system Type | Motronic ME7.1.1 |
| Ignition system Description | Map-DI |
| Trigger location | Cam/Crankshaft |
| Fuel system Make | Bosch |
| Fuel system Type | Motronic ME7.1.1 |
| Fuel system Description | MFI-s |
| Air metering Type | Mass |
| Combined ignition and fuel ECM | Yes |
| Diagnostic socket | Yes |
Ignition system
| Ignition coil supply voltage + with ballast V | 12,0 |
|---|---|
| Distributor (ECM) Make | (Bosch) |
Firing order
The firing order for the Alfa Romeo Spider 2.0 JTS (2003–2006) is 1-3-4-2.
| Firing order | 1-3-4-2 |
|---|
Valve clearances
Valve clearances on the Alfa Romeo Spider 2.0 JTS (2003–2006) 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 Alfa Romeo Spider 2.0 JTS (2003–2006) takes 4.4 litres of engine oil with the filter. The specified engine oil grade is SAE 10W-60 synthetic for all ambient temperatures, with API/ACEA classification SL/A3.
Manual gearbox
The manual gearbox has a listed capacity of 2.0 litres.
See the reference table for the complete manual gearbox entries and their conditions.
Coolant
The listed total cooling-system capacity is 8.4 litres.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | All temperatures |
| Engine oil grade SAE | 10W-60 Synthetic |
| Engine oil classification API/ACEA | SL/A3 |
| Engine with filter(s) litres | 4.4 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | 75W-85 Synthetic |
| Manual transmission oil classification | GL-4+ |
| Manual transmission litres | 2.0 |
| Cooling system - total capacity litres | 8.4 |
| Brake fluid Type | DOT 4 |
| Brake fluid litres | 0.4 |
| Power steering fluid Type | Dexron II |
| Power steering fluid litres | 1.3 |
Brakes & wear limits
Brake disc thickness
Front brake discs on the Alfa Romeo Spider 2.0 JTS (2003–2006) are replaced at a minimum thickness of 26,4 mm (ventilated).
| Minimum disc thickness for replacement - ventilated Front | 26,4 mm |
|---|
Brake disc and drum dimensions
| Disc runout Front | 0,15 mm |
|---|---|
| Minimum pad thickness Front | 1,5 mm |
| Minimum pad thickness Rear | 1,5 mm |
Service & electrical
Ignition timing
The ignition timing on the Alfa Romeo Spider 2.0 JTS (2003–2006) is not adjustable.
| Ignition timing - basic BTDC °Engine/rpm | Not adjustable |
|---|
Battery
The Alfa Romeo Spider 2.0 JTS (2003–2006) uses a 12 V, 70 Ah battery.
| Battery V/RC(Ah) | 12 (70) |
|---|
Spark plugs
The Alfa Romeo Spider 2.0 JTS (2003–2006) uses NGK PFR6B spark plugs with a 0,7 mm electrode gap.
| Spark plugs Original equipment | NGK |
|---|---|
| Spark plug Type | PFR6B |
| Electrode gap mm | 0,7 |
| Spark plugs Make | NGK |
| Spark plug Type | PFR6B |
| Electrode gap mm | 0,7 |
Tuning and emissions
| Ignition advance checks °Engine/rpm | ECM Controlled |
|---|---|
| Idle speed rpm | 840±20 Not adjustable |
| Oil temperature °C | 80 |
| CO level at idle speed - tailpipe Vol. % CO | 0,5 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 | 2500-2900 |
| CO content at increased idle speed Vol. % | 0,3 |
| Lambda at increased idle λ | 0,97-1,03 |
Starting and charging
| Alternator output A/V/rpm | 100/14/3000 |
|---|
Service checks and adjustments
| Radiator cap bar | 0,98 |
|---|---|
| Thermostat opens °C | 81-85 |
Tightening torques
Cylinder head bolt torque
The cylinder head bolts on the Alfa Romeo Spider 2.0 JTS (2003–2006) are tightened in 5 stages: 20 Nm, then 40 Nm, then 90°, then 90°, then a final 90°.
| Cylinder head | |
|---|---|
| Renew bolts | No |
| Tighten | 20 Nm |
| Tighten | 40 Nm |
| Tighten | 90° |
| Tighten | 90° |
| Tighten | 90° |
| Cylinder head instructions | — |
|---|---|
| Other engine tightening torques | |
| Main bearings Renew bolts/nuts | No |
| Main bearings Stage 1 | 24-26 Nm |
| Main bearings Stage 2 | 100° |
| Big end bearings Renew bolts/nuts | No |
| Big end bearings Stage 1 | 24-26 Nm |
| Big end bearings Stage 2 | 60° |
| Sump bolts | — |
| Sump bolts | |
| Sump drain bolt | 18-22 Nm |
| Flywheel/driveplate | 144-176 Nm |
| Clutch pressure plate | 20-25 Nm |
| Crankshaft pulley/damper centre bolt | 209-231 Nm |
| Camshaft sprocket/gear | — |
| Camshaft sprocket | |
| Camshaft carrier/cap | 14-17 Nm |
| Camshaft/rocker cover | 8-10 Nm |
| Inlet manifold to cylinder head | 23-28 Nm |
| Spark plugs | 24-30 Nm |
| Crankshaft position (CKP) sensor/engine speed (RPM) sensor | 8-10 Nm |
| Camshaft position (CMP) sensor | 7-8 Nm |
| Lambda sensor (Oxygen) | 40-50 Nm |
| Knock sensor (KS) | 23-28 Nm |
| Engine oil pressure switch | 27-33 Nm |
| Chassis tightening torques | |
| Front hub | — |
| Front hub | |
| Rear hub | 266-294 Nm |
| Steering wheel | 25-31 Nm |
| Steering rack/box mounting | 43-47 Nm |
| Steering track rod end | 29-36 Nm |
| Brake disc to hub Front | 5-13 Nm |
| Brake caliper to carrier Front | — |
| Caliper to carrier | |
| Brake caliper/carrier to hub Front | 95 Nm |
| Brake disc to hub Rear | 5-13 Nm |
| Brake caliper to carrier Rear | 35 Nm |
| Brake caliper/carrier to hub Rear | 47 Nm |
| Road wheels | 83-103 Nm |
Air conditioning
| No. of AC service connectors | 2 |
|---|---|
| Air conditioning restrictor type | Expansion valve |
| Compressor clutch/magnetic coupling | Yes |
| Compressor variable displacement solenoid | No |
| Air conditioning refrigerant Type | R134a |
| Air conditioning refrigerant quantity grams | 575±25 |
| Air conditioning oil group | PAG |
| Air conditioning oil Type | Dens Oil 9 |
| Air conditioning oil quantity cm³ | 290±30 |
| Air conditioning oil viscosity ISO | 100 |
Frequently asked questions
What is the firing order of the Alfa Romeo Spider 2.0 JTS?
The firing order for the Alfa Romeo Spider 2.0 JTS (2003–2006) is 1-3-4-2.
What spark plugs does the Alfa Romeo Spider 2.0 JTS use?
The Alfa Romeo Spider 2.0 JTS (2003–2006) uses NGK PFR6B spark plugs with a 0,7 mm electrode gap.
How much oil does the Alfa Romeo Spider 2.0 JTS take?
The Alfa Romeo Spider 2.0 JTS (2003–2006) takes 4.4 litres of engine oil with the filter. The specified engine oil grade is SAE 10W-60 synthetic for all ambient temperatures, with API/ACEA classification SL/A3.
What are the valve clearances for the Alfa Romeo Spider 2.0 JTS?
Valve clearances on the Alfa Romeo Spider 2.0 JTS (2003–2006) are hydraulic — they self-adjust, so no manual clearance figure applies.
What is the cylinder head torque for the Alfa Romeo Spider 2.0 JTS?
The cylinder head bolts on the Alfa Romeo Spider 2.0 JTS (2003–2006) are tightened in 5 stages: 20 Nm, then 40 Nm, then 90°, then 90°, then a final 90°.
What is the ignition timing for the Alfa Romeo Spider 2.0 JTS?
The ignition timing on the Alfa Romeo Spider 2.0 JTS (2003–2006) is not adjustable.