Engine Renault E7J

The Renault E7J 1.4-liter 8-valve engine first appeared in 1991. Structurally, it is based on the popular Cleon-Fonte engine, but with an overhead camshaft, that is, in the cylinder head. Installed on Renault 19, Megane, Kangoo, Clio, and Dacia Solenza, SupeRNova. The version of the engine with a carburetor power system is called the E6J.

The E-series also includes: E7F.

At the end of the 80s, the concern’s engineers finally realized that nothing more could be squeezed out of the OHV-type C-series engines. It’s time to switch to the OHC scheme, that is, with a camshaft in the cylinder head and a toothed belt to transmit torque from the crankshaft.

Thus, the E-series appeared, which laid the foundation for a huge family of low-volume power units with indices K and D, which are still actively installed on a number of budget models of the Franco-Japanese alliance. Of course, over the years, mono-injection has given way to distributed injection, but the design basis has been without significant changes for 30 years.

In 1997, a new 1.4-liter K7J engine appeared, which finally abandoned wet liners in favor of a cast block. However, the old motor remained in the conveyor for almost 10 more years, it was put on the Romanian Dacia cars.

The engine was installed on:

  • Dacia Solenza 1 (B41) in 2003 – 2005;
  • Dacia SupeRNova 1 (B41) in 2000 – 2003;
  • Renault 19 (X53) in 1993 – 1995;
  • Renault Clio 1 (X57) in 1991 – 1998; Clio 2 (X65) in 1998 – 2001;
  • Renault Express 1 (X40) in 1991 – 1998;
  • Renault Kangoo 1 (KC) in 1997 – 2001;
  • Renault Megane 1 (X64) in 1995 – 2000;
  • Renault Scenic 1 (J64) in 1996 – 2003.

Specifications

Production years 1991-2005
Displacement, cc 1390
Fuel system mono-injection
Power output, hp 70 – 80
Torque output, Nm 105 – 114
Cylinder block R4
Block head 8v
Cylinder bore, mm 75.8
Piston stroke, mm 77
Compression ratio 9.2 – 9.5
Timing drive belt
Turbocharging no
Fuel type petrol
Euro standards EURO 1
Engine lifespan, km ~200 000
Weight, kg 122

Disadvantages of the Renault E7J engine

  • The cause of the unstable operation of the power unit is usually: air leakage, a burned-out lambda probe, a faulty fuel pump, or failure of the single injection nozzle.
  • Trouble of the motor is often caused by a cracked cover of the distributor. It is also worth checking the candles and high-voltage wires.
  • The electrical part of the engine is very capricious, especially in wet weather. Many sensors can fail, but let’s single out the two most unreliable: the temperature of the coolant and the incoming air.

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