Douvrin engine explained

ZDJ/ZEJ engine (Peugeot)
J-Type engine (Renault)
Aka:Douvrin, "J engine"
Configuration:Inline-four
Manufacturer:Française de Mécanique
Production:1977 - 1996
Successor:XU engine (PSA)
F-Type engine (Renault)(petrol)
G-Type engine (Renault)(diesel)
Redline:6,000
Block:Aluminium alloy
Head:Aluminium alloy
Valvetrain:SOHC 2 or 3 valves x cyl.
Displacement:NaNcc
Bore:862NaN2
882NaN2
Stroke:822NaN2
89mm
Fueltype:Gasoline, Diesel
Fuelsystem:Carburetor
Multi-point fuel injection
Coolingsystem:Water-cooled
Management:Bosch K-Jetronic, LE2-Jetronic, LU2-Jetronic,Renix
Power:NaN0NaN0
Torque:NaNkgm
Compression:8.8:1-9.8:1
Turbocharger:Variable-nozzle (on some versions)

The Douvrin family is an all-aluminum inline-four automobile engine designed in the early 1970s and produced from 1977 to 1996 by Compagnie Française de Mécanique, a joint-venture between PSA and Renault located in the town of Douvrin in northern France. This engine is designed by the engineer Jean-Jacques His (father of Formula 1 engines from Renault and Ferrari). It was produced in the same factory as the PRV V6, which also is sometimes known outside France as the "Douvrin" V6. The Douvrin engine is also referred to as the ZDJ/ZEJ engine by Peugeot, and as the J-type engine by Renault.[1]

Construction

This engine had an aluminium alloy block with cast iron liners, and an aluminium alloy head with one overhead camshaft driven by belt.Its displacement varied from 1995 to 2165 cc.This engine should not be confused with the PSA-Renault X-Type engine whose displacement varied from 954 to 1360 cc and had a gearbox integrated to the block.The Douvrin engine on the contrary, had a conventional (external) gearbox setup, and was longitudinally or transversely mounted depending on car model.

2.0

The 1995cc was an oversquare design with a single belt driven overhead camshaft, an NaN2NaN2 bore and stroke.

Applications

PSA

CodeModelsPowerTorqueCompression ratioValvesFuel supply
829 A5Citroën CX1080NaN0 at 5500 rpm16.9kgm at 3250 rpm9.2:18Carburettor
ZEJK 829BPeugeot 5051100NaN0 at 5250 rpm17.4kgm at 4000 rpmBosch K-Jetronic mechanical multi-point fuel injection

Renault

It was produced in a variety of configurations for Renault:

Others

2.2

The 2165cc version was derived from the 1995cc by a stroke extension from 82to, making it an undersquare design. Most parts, including the cylinder head, were identical to those of the 2-liter unit.

This engine proved as reliable as its 2.0-liter counterpart. It is often confused with the somewhat similar 2.2 litre Chrysler Type 180 engine, which displaced 2155cc

Applications

PSA

CodeModelsPowerTorqueCompression ratioValvesFuel supply
J6T A500Citroën CX at 5600 rpm at 3250 rpm9.8:18Carburettor
ZDJKPeugeot 505 at 5250 rpm at 3500 rpm9.2:1Bosch K-Jetronic multipoint mechanical fuel injection
ZDJL 851B at 5750 rpm at 4250 rpm9.8:1Bosch LE2-Jetronic multipoint electronic fuel injection
ZDJL 851Y
ZDJL 851X at 5750 rpm8.8:1Bosch LU2-Jetronic multipoint electronic fuel injection with catalytic converter

Renault

Renault offered the 2.2 in fewer configurations than the smaller version:

Others

2.1 Diesel

The 2068cc Diesel version was derived from the 1995cc petrol version by a bore reduction from 88to and a stroke extension from 82to. Cast-iron cylinder liners were used to withstand the higher compression ratio of Diesel combustion. The cylinder head was a Ricardo-type pre-chamber design fed by a mechanically controlled fuel pump. This engine was only used by Renault in three versions:

- Garrett T2 turbocharged 8-valve version was fitted by AMC-Renault in the 1984-1987 Jeep Wagoneer, Cherokee and Comanche models

- Garrett T3 turbocharged 8-valve version was fitted by AMC-Renault in the 1983-1986 Winnebago Lesharo/Itasca Phasar, based on the Renault Trafic I 'P'latform chassis, albeit only in FWD, LWB designs.

See also

References

  1. Web site: Douvrin engine (1977-1997) . 2022-03-31 . Motor Car History . en-gb.