Jaguar AJ27S engine
Engines

Jaguar AJ27S engine

Jaguar AJ4.0S or XK 27 Supercharged 4.0-litre petrol engine specifications, reliability, life, reviews, problems and fuel consumption.

The Jaguar AJ4.0S or 8 Supercharged 27-liter V4.0 engine was produced from 1999 to 2003 and was installed on charged modifications of the XKR coupe in the back of the X100 or the XJR sedan in the back of the X308. Unlike the atmospheric version, the power unit with a compressor does not have phase regulators.

К серии AJ-V8 относят двс: AJ27, AJ28, AJ33, AJ33S, AJ34 и AJ34S.

Specifications of the Jaguar AJ27S 4.0 Supercharged engine

Exact volume3996 cm³
Supply systemdistribution injection
Internal combustion engine power360 - 370 HP
Torque505 - 525 Nm
Cylinder blockaluminum V8
Block headaluminum 32v
Bore86 mm
Piston stroke86 mm
Compression ratio8.9
Features of the internal combustion engineDOHC
Hydraulic compensatorsno
Timing drivechain
Phase regulatorno
TurbochargingEaton M112
What kind of oil to pour7.3 liters 5W-30
fuel typeAI-95
Ecologist. classEURO 2/3
Approximate resource300 000 km

The weight of the AJ27S engine according to the catalog is 190 kg

Engine number AJ27S is located on the cylinder block

Fuel consumption ICE Jaguar AJ27S

Using the example of a 2000 Jaguar XKR with an automatic transmission:

City16.7 liters
Track8.3 liters
Mixed11.3 liters

Which cars were equipped with the AJ27S 4.0 l engine

Jaguar
XJ 6 (X308)1999 – 2003
Export 1 (X100)1999 – 2002

Disadvantages, breakdowns and problems of the AJ27S internal combustion engine

The very first units came with a nikasil coating and were afraid of bad fuel

But by the end of 1999, nikasil was replaced with more reliable cast-iron sleeves.

Another weak point of the motor is the plastic timing chain guides.

The aluminum engine does not tolerate overheating, keep the radiator clean

As luck would have it, the pump is distinguished by low reliability, and pipes often burst


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