F8Q-632 engine — Renault 1.9 dCi (1.9L)
1.9L · 64 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | F8Q-632 |
| Capacity | 1870 cc |
| Idle speed | 825 ± 50 rpm |
| Inlet | 0.20 ± 0.05 mm |
| Exhaust | 0.40 ± 0.05 mm |
| Oil pressure | 1.2 / 1000 3.5 / 3000 bar/rpm |
| Inlet | 0.20 mm |
| Exhaust | 0.40 mm |
Engine (diesel)
| System (make and type) | DCU 3R |
| Injection pump (make and type) | LUCAS EPIC R8640 A111A, H111.027 |
| Injector (make and type) | LUCAS RDNOSDC 6751H |
| Number of cylinders | 4 |
| Injector firing order | 1-3-4-2 |
| Injector pressure | 125 - 140 bar |
| Glow plugs (make and type) | Beru |
| Glow plug resistance | 0.6 ohms |
| Exhaust gas analysis (opacity) | 33 % |
| Exhaust gas analysis | 1.0 m-1 |
| Max. no-load governed speed | 5175 ± 50 rpm |
| Injection pump (make and type) | LUCAS EPIC R8640 A111A H111.027 |
| Injector (make and type) | LUCAS RDN OSDC 6751H |
| Injector firing order | 1 - 3 - 4 - 2 |
Cooling system
| Cap pressure | 1.2 bar |
| Thermostat opens at | 89 - 101 °C |
Electrical
| Battery | 70 Ah |
| Alternator | 75 A |
| Alternator | 110 A |
Capacities
| Engine sump, incl. filter | 5.2 l |
| Manual transmission | JB1 |
| Gearbox refill | 3.4 l |
| Cooling system | 7.4 l |
| Air-conditioner refrigerant | 660 ± 35 g |
| Air-conditioner compressor oil | 135 ± 10 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 30 Nm |
| Cylinder head bolts — Stage 2 | 100 ± 4 ° |
| Cylinder head bolts — Stage 5 | 25 Nm |
| Cylinder head bolts — Stage 6 | 213 ± 7 ° |
| Repeat stages 4, 5 and 6 for bolts: | 3-4, 5-6, 7-8, 9-10 |
| Glow plugs | 20 Nm |
| Injector nozzle | 70 Nm |
| Valve cover | 12 Nm |
| Camshaft bearing caps | Ø 6 mm : 10 Ø 8 mm : 20 Nm |
| Big-end bearing cap — Stage 1 | 20 Nm |
| Big-end bearing cap — Stage 2 | 40 ° |
| Main bearing cap | 60 - 65 Nm |
| Inlet manifold | 25 Nm |
| Exhaust manifold | 25 Nm |
| Wheel bolts | 90 Nm |
| Front hub | 280 Nm |
| Rear hub | 175 Nm |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
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TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.