Douvrin engine

ZDJ/ZEJ engine (Peugeot)
J-Type engine (Renault)
Overview
Manufacturer Française de Mécanique
Production –
Combustion chamber
Configuration inline-four
Chronology
Successor XU engine (PSA)
F-Type engine (Renault)(petrol)
G-Type engine (Renault)(diesel)

The Douvrin family was 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.

Douvrin "Suitcase Engine"

Constructed from aluminium alloy, chain driven overhead camshaft, with gearbox in the sump sharing engine oil for lubrication, typically mounted almost on its side. For this reason it is often nicknamed the "suitcase engine" owing to the way in which the engine has to be split open in order service the transmission. It was available with versions from 954cc to 1360cc.

2.0

The 2.0 L (1995 cc) was an oversquare design with a single belt driven overhead camshaft, an 88 mm (3.5 in) bore, and an 82 mm (3.2 in) stroke.

Though somewhat dull (with a 6,000 rpm redline only) and slow to throttle response, the normally aspirated 8-valve versions proved extremely reliable. Mileages of over 300,000 km (190,000 mi) without major repairs are not uncommon. The 12-valvers are much livelier and also boast above-average reliability. The turbocharged versions have only average reliability.

Applications

PSA

Code Brand Models Power Torque Compression ratio Valves Fuel supply
829 A5CitroënCX108 CV @ 5500 rpm16.9 kg·m @ 3250 rpm9.2:18Carburettor
ZEJK 829BPeugeot505110 CV @ 5250 rpm17.4 kg·m @ 4000 rpm9.2:18Bosch K-Jetronic multipoint mechanical fuel injection

Renault

It was produced in a variety of configurations for Renault:

In the following models:

Others

2.2

The 2.2 L (2165 cc) version was derived from the 2.0 L by a simple stroke extension from 82 to 89 mm (3.5 in), making it an undersquare design. Most parts, including the cylinder head, were identical to the 2.0 L's.

This engine proved as reliable as its 2.0 L counterpart. It is often confused with the somewhat similar Simca Type 180, which displaced 2155 cc.

Applications

PSA

Code Brand Models Power Torque Compression ratio Valves Fuel supply
J6T A500CitroënCX117 CV @ 5600 rpm18.1 kg·m @ 3250 rpm9.8:18Carburettor
ZDJKPeugeot505 9.2:18Bosch K-Jetronic multipoint mechanical fuel injection
ZDJL 851BPeugeot505130 CV @ 5750 rpm19.2 kg·m @ 4250 rpm9.8:18Bosch LE2-Jetronic multipoint electronic fuel injection
ZDJL 851XPeugeot505117 CV @ 5750 rpm19.2 kg·m @ 4250 rpm8.8:18Bosch LU2-Jetronic multipoint electronic fuel injection with catalytic converter

Renault

It was produced in fewer configurations than the smaller version for Renault:

In the following models:

Others

2.1 Diesel

The 2.1 L (2068 cc) Diesel version was derived from the 2.0 L petrol version by a bore reduction from 88 to 86 mm (3.4 in) and a stroke extension from 82 to 89 mm (3.5 in). Cast-iron cylinder liners were used to withstand the higher cylinder pressure of Diesel combustion. The cylinder head was of course specific and was a Ricardo-type prechamber design fed by a mechanically controlled fuel pump. This engine was only used by Renault in three versions:

Reliability of all Diesel versions has been not so good, lots of problem at the cylinder head and block connection has been verified (usually around 200.000 km), often the prechamber number 3 present cracks, requiring a head change, especially on Jeeps due to an excessive mass for this engine.

Applications:

See also