Engine Renault F3P

The 1.8-liter 8-valve Renault F3P engine appeared in 1992 as a replacement for the 1.7‑liter F2N due to tougher environmental requirements. It is found on models such as Renault 19, Clio and Laguna. Under the Volvo hood, this single-injection engine has the B18U index.

The F-series include: F3P, F4P, F7P, F2R, F3R, F4R, F4Rt, F5R, F7R.

In the early nineties of the last century, environmental requirements for all cars became more stringent and French designers had to upgrade the F2N engine. The result was a power unit with a standard catalytic converter and electronic fuel injection, first mono, and then multi-point. Due to the use of larger pistons, the working volume increased from 1721 to 1783 cm3 (in the 678 version 1794 cm³).

The timing drive remained a belt drive with a replacement schedule every 120,000 km, and due to the lack of hydraulic lifters, periodic adjustment of valve clearances is required.

The engine was installed on:

  • Renault 19 (X53) in 1992 – 1997;
  • Renault Clio 1 (X57) in 1993 – 1998;
  • Renault Laguna 1 (X56) in 1993 – 1999;
  • Volvo 440 in 1990 – 1996 (as B18U);
  • Volvo 460 in 1990 – 1996 (as B18U).

Specifications

Production years 1992-1999
Displacement, cc 1783 – 1794
Fuel system injector
Power output, hp 88 – 110
Torque output, Nm 142 – 160
Cylinder block cast iron R4
Block head aluminum 8v
Cylinder bore, mm 82.7
Piston stroke, mm 83 – 83.5
Compression ratio 9.6 – 10
Hydraulic lifters no
Timing drive belt
Turbocharging no
Fuel type petrol
Euro standards EURO 1/2
Engine lifespan, km ~250 000
Weight, kg 132

Disadvantages of the Renault F3P engine

  • Unstable operation of the engine is almost always associated with malfunctions of the ignition system. And it doesn’t matter if you have a distributor or individual coils, both options are problematic.
  • In fact, there may be several reasons for this: a throttle valve overgrown with dirt, a burned-out lambda probe, or a buggy coolant temperature sensor.
  • Most often, by a run of 200 thousand kilometers, oil and coolant leaks begin. No sooner do you get rid of one leak, another immediately arises.
  • Power failures, up to the point that the car simply stalls, are usually caused by a clogged fuel filter or injectors, less often by a fuel pump failure.

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