B18KP engine — Volvo 1.7 (1.7L)
1.7L · 87 hp
Engine overview
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | B 18 KP |
| Capacity | 1721 cc |
| Idle speed | 750 - 900 rpm |
| Inlet | 0.20 ± 0.05 mm |
| Exhaust | 0.40 ± 0.05 mm |
| Normal | 11 - 13 bar |
| Oil pressure | 2.0/1000 3.5/3000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | Solex Cisac 28-43Z10 |
| Number of cylinders | 4 |
| Firing order | 1-3-4-2 |
| Timing stroboscopic (before TDC) | 9 ± 3/800 °/rpm |
| Ignition coil resistance, primary | 0.4 - 0.8 ohms |
| Ignition coil resistance, secondary | 3500 - 6500 ohms |
| Spark plugs (make and type) | Bosch WR7DC |
| Spark plug gap | 0.7 mm |
| Fuel pump pressure | 0.16 - 0.28 bar |
| CO exhaust gas | 1.0 - 2.5 % |
| Catalytic converter | < 0.5 % |
| CO2 | 13 - 16 % |
| Catalytic converter | 14.5 - 16.0 % |
| HC | 300 ppm |
| Catalytic converter | 100 |
| O2 | 0.5 - 1.5 % |
| Catalytic converter | 0.1 - 0.5 % |
| Oil temperature during test | 70 °C |
| Fast-idle speed | 2400 - 2600 rpm |
| CO at fast-idle speed | < 0.3 % |
| Conditioning catalytic converter | 2 / 3000 min/rpm |
Cooling system
| Cap pressure | 1.5 bar |
| Thermostat opens at | 92 °C |
| Stage 1/Fan 1 | 95 °C |
| Stage 2/Fan 2 | 101 °C |
Electrical
| Battery | 55 Ah |
| Alternator | 60 A |
Capacities
| Engine sump, incl. filter | 5.3 l |
| Gearbox refill | 3.4 l |
| Automatic transmission | ZF 4 HP 14 Q |
| Gearbox refill | 3.3 l |
| Cooling system | 6.5 l |
Torque settings
| Cylinder head bolts — Stage 1 | 30 Nm |
| Cylinder head bolts — Stage 2 | 70 Nm |
| Cylinder head bolts — Stage 5 | 20 Nm |
| Cylinder head bolts — Stage 6 | 123 ± 2 ° |
| Front hub | 230 Nm |
| Rear hub | 220 (->1990) Nm |
| Rear hub | 160 (1990->) Nm |
| Wheel nuts | 110 Nm |
| Spark plugs | 25 Nm |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
Got a B18KP problem? Ask for free.
Describe the symptoms — TorqFix replies with a diagnosis cited from verified workshop data.
Get free diagnosis →Who makes these pages, and how
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.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.