Jaguar AJ27 engine
Engines

Jaguar AJ27 engine

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

The Jaguar AJ4.0 8-liter V27 petrol engine was produced by the company from 1998 to 2003 and was installed on the main modifications of the XJ8 sedan in the X308 body and the XK coupe in the X100 body. In addition to the 4.0-liter engine, there was a simplified 3.2-liter version without a phase regulator.

The AJ-V8 series includes internal combustion engines: AJ27S, AJ28, AJ33, AJ33S, AJ34 and AJ34S.

Technical characteristics of the Jaguar AJ27 4.0 liter engine

Standard version with VVT
Exact volume3996 cm³
Supply systemdistribution injection
Internal combustion engine power290 hp
Torque393 Nm
Cylinder blockaluminum V8
Block headaluminum 32v
Bore86 mm
Piston stroke86 mm
Compression ratio10.75
Features of the internal combustion engineDOHC
Hydraulic compensatorsno
Timing drivechain
Phase regulatorat the VVT ​​intake
Turbochargingno
What kind of oil to pour7.3 liters 5W-30
fuel typeAI-95
Ecologist. classEURO 2/3
Approximate resource400 000 km

Simplified modification without VVT
Exact volume3248 cm³
Supply systemdistribution injection
Internal combustion engine power240 hp
Torque316 Nm
Cylinder blockaluminum V8
Block headaluminum 32v
Bore86 mm
Piston stroke70 mm
Compression ratio10.5
Features of the internal combustion engineDOHC
Hydraulic compensatorsno
Timing drivechain
Phase regulatorno
Turbochargingno
What kind of oil to pour7.3 liters 5W-30
fuel typeAI-95
Ecologist. classEURO 2/3
Approximate resource380 000 km

The weight of the AJ27 engine according to the catalog is 180 kg

Engine number AJ27 is located on the cylinder block

Fuel consumption ICE Jaguar AJ27

On the example of Jaguar XJ8 2000 with automatic transmission:

City16.9 liters
Track9.0 liters
Mixed11.9 liters

Which cars were equipped with the AJ27 3.2 and 4.0 l engine

Jaguar
XJ 6 (X308)1998 – 2003
Export 1 (X100)1998 – 2002

Disadvantages, breakdowns and problems of the AJ27 internal combustion engine

At first, the engines came with a nikasil coating and were very afraid of bad fuel.

In 1999, the coating was replaced by cast iron sleeves and the problem with its shedding was gone.

The timing chain is not very large resource, sometimes even less than 100 km

The aluminum unit is afraid of overheating, so keep an eye on the condition of the radiators

Other problems here are related to sensor glitches and leaks of lubricant or antifreeze.


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