Engine & identification
Vehicle identification
| No. of cylinders Type | 4/DOHC |
|---|---|
| Capacity cc | 1910 |
| Compression ratio :1 | 18,0 |
| Fuel system Make | Bosch |
| Fuel system Type | EDC 16C8 |
Injection system
| Air metering Type | Mass |
|---|---|
| Pump type | Common rail |
| Fuel feed/lift pump delivery pressure bar | 2,0-3,0 |
Injection sequence
The injection sequence for the Alfa Romeo GT 1.9 JTDM 16V (2008–2010) is 1-3-4-2.
| Injection sequence | 1-3-4-2 |
|---|
Valve clearances
Valve clearances on the Alfa Romeo GT 1.9 JTDM 16V (2008–2010) 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 GT 1.9 JTDM 16V (2008–2010) takes 4.5 litres of engine oil with the filter.
See the reference table for the complete engine oil entries and their conditions.
Manual gearbox
The manual gearbox has a listed capacity of 2.0 litres. The specified oil is SAE 75W-85 semi-synthetic, with classification GL-5.
Coolant
The listed total cooling-system capacity is 7.2 litres.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | All temperatures |
| Engine oil grade SAE | 5W-40 Synthetic |
| Engine oil classification API/ACEA | CF/B3 |
| Ambient temperature range | -15°C➞ |
| Engine oil grade SAE | 10W-40 Synthetic |
| Engine oil classification API/ACEA | CF/B3 |
| Engine with filter(s) litres | 4.5 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | 75W-85 Semi-synthetic |
| Manual transmission oil classification | GL-5 |
| Manual transmission litres | 2.0 |
| Cooling system - total capacity litres | 7.2 |
| Brake fluid Type | DOT 4 |
| Brake fluid litres | 0.5 |
| Power steering fluid Type | Dexron II |
| Power steering fluid litres | 1.2 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Alfa Romeo GT 1.9 JTDM 16V (2008–2010) are replaced at a minimum thickness of 20,2 mm (ventilated) front and 9 mm rear.
| Minimum disc thickness for replacement - ventilated Front | 20,2 mm |
|---|---|
| Minimum disc thickness for replacement Rear | 9 mm |
Service & electrical
Tuning and emissions
| Idle speed rpm | 850±20 |
|---|---|
| Rated no load speed rpm | 4900-5100 |
| Oil temperature °C | 80 |
| Idle speed - for smoke test rpm | 800-900 |
| Governed speed range - for smoke test rpm | 4900-5100 |
| Maximum time at governed speed secs | 1,0 |
| Test mode A/B | B |
| Probe type 1/2 | 1 |
| Conditioning Accelerations/rpm | 2-3 |
| Smoke opacity - EU limit m-1 (%) | 3,00 (73) |
| Smoke opacity - homologation value m-1 (%) | 1,20 (40) |
Starting and charging
| Battery V/RC(Ah) | 12 |
|---|
Service checks and adjustments
| Radiator cap bar | 0,98 |
|---|---|
| Thermostat opens °C | 86-90 |
Tightening torques
Cylinder head bolt torque
The cylinder head bolts on the Alfa Romeo GT 1.9 JTDM 16V (2008–2010) are tightened in 5 stages: 20 Nm, then 65 Nm, then 90°, then 90°, then a final 90°.
| Cylinder head | |
|---|---|
| Renew bolts | Yes |
| Tighten | 20 Nm |
| Tighten | 65 Nm |
| Tighten | 90° |
| Tighten | 90° |
| Tighten | 90° |
| Cylinder head instructions | — |
|---|---|
| Other engine tightening torques | |
| Main bearings Renew bolts/nuts | No |
| Main bearings Stage 1 | 25 Nm |
| Main bearings Stage 2 | 100° |
| Big end bearings Renew bolts/nuts | No |
| Big end bearings Stage 1 | 25 Nm |
| Big end bearings Stage 2 | 60° |
| Sump drain bolt | 20 Nm |
| Flywheel/driveplate | 160±16 Nm |
| Clutch pressure plate | 28±3 Nm |
| Camshaft sprocket/gear | 120±12 Nm |
| Camshaft carrier/cap | 16 Nm |
| Injector/clamp | 25±2 Nm |
| Injector pipe unions | 22±2 Nm |
| Glow plugs | — |
| Oil filter | 8 Nm |
| Chassis tightening torques | |
| Front hub | 70 Nm+62° |
| Rear hub | 320 Nm |
| Brake disc to hub Front | 12 Nm |
| Brake disc to hub Rear | 12 Nm |
| Brake caliper to carrier Rear | 50 Nm |
| Brake caliper/carrier to hub Rear | 50 Nm |
| Road wheels | — |
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 | 500±40 |
| Air conditioning oil group | PAG |
| Air conditioning oil Type | SP10 |
| Air conditioning oil quantity cm³ | 130 |
| Air conditioning oil viscosity ISO | 46 |
Frequently asked questions
What is the injection sequence of the Alfa Romeo GT 1.9 JTDM 16V?
The injection sequence for the Alfa Romeo GT 1.9 JTDM 16V (2008–2010) is 1-3-4-2.
How much oil does the Alfa Romeo GT 1.9 JTDM 16V take?
The Alfa Romeo GT 1.9 JTDM 16V (2008–2010) takes 4.5 litres of engine oil with the filter. See the reference table for the complete engine oil entries and their conditions.
What are the valve clearances for the Alfa Romeo GT 1.9 JTDM 16V?
Valve clearances on the Alfa Romeo GT 1.9 JTDM 16V (2008–2010) are hydraulic — they self-adjust, so no manual clearance figure applies.
What is the cylinder head torque for the Alfa Romeo GT 1.9 JTDM 16V?
The cylinder head bolts on the Alfa Romeo GT 1.9 JTDM 16V (2008–2010) are tightened in 5 stages: 20 Nm, then 65 Nm, then 90°, then 90°, then a final 90°.
What is the minimum brake disc thickness for the Alfa Romeo GT 1.9 JTDM 16V?
Brake discs on the Alfa Romeo GT 1.9 JTDM 16V (2008–2010) are replaced at a minimum thickness of 20,2 mm (ventilated) front and 9 mm rear.