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).
|Displacement, cc||1783 – 1794|
|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|
|Euro standards||EURO 1/2|
|Engine lifespan, km||~250 000|
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.