Jaguar XJ (X350). Manual — part 298

3. POWERTRAIN

303 : Engine

303-00 : Engine System – General Information

Specifications

Specifications

General specifications - Vehicles 3.0L engine.

Item

Specification

Displacement in liters 2.967

Number of cylinders 6

Bore and stroke (mm) 89.0 x 79.5

Compression ratio

10.5:1

General specifications - Vehicles 3.5L engine.

Item

Specification

Displacement in liters 3.554

Number of cylinders 8

Bore and stroke (mm) 86.0 x 76.5

Compression ratio

11.0:1

General specifications - Vehicles with 4.2L engine without supercharger.

Item

Specification

Displacement in liters 4.196

Number of cylinders 8

Bore and stroke (mm) 86.0 x 90.3

Compression ratio

11.0:1

General specifications - Vehicles with 4.2L engine with supercharger.

Item

Specification

Displacement in liters 4.196

Number of cylinders 8

Bore and stroke (mm) 86.0 x 90.3

Compression ratio

9.0:1

Cylinder Head and Valve Train - Vehicles with 3.0L engine

Item

Specification

Valve guide inner diameter (mm)

5.514 - 5.544

Intake valve effective length (mm)

90.13 - 90.93

Exhaust valve effective length (mm)

89.68 - 89.88

Valve stem to guide clearance intake - diametrical (mm)

0.022 - 0.067

Valve stem to guide clearance exhaust - diametrical (mm)

0.035 - 0.08

Valve head diameter intake (mm)

34.85 - 35.15

Valve head diameter exhaust (mm)

29.85 - 30.15

Intake valve face angle degree

45.75°

Exhaust valve face angle degree

45.25°

Valve stem diameter intake (mm)

5.477 - 5.492

Valve stem diameter exhaust (mm)

5.464 - 5.479

Valve spring free length (mm)

44.2

Valve spring installed height (mm)

33.41

Camshaft lobe lift intake (mm)

9.367

Camshaft lobe lift exhaust (mm)

9.461

Camshaft end play (mm)

0.07 - 0.15

Camshaft journal to cylinder head bearing surface clearance diametrical (mm) 0.025 - 0.076

Camshaft journal diameter standard runout limit (mm)

0.04

Camshaft journal diameter standard out of round (mm)

0.013

Cylinder Head and Valve Train - Vehicles with 3.5L engine

Item

Specification

Valve guide inner diameter (mm)

5.02

Intake valve effective length (mm)

88.87 - 89.17

Exhaust valve effective length (mm)

88.40 - 88.70

www.

Valve stem to guide clearance intake - diametrical
(mm)

0.012 - 0.067

Valve stem to guide clearance exhaust - diametrical
(mm)

0.02 - 0.075

Valve head diameter intake (mm)

34.8 - 35.0

Valve head diameter exhaust (mm)

30.8 - 31.0

Intake valve face angle degree

45° 15'

Exhaust valve face angle degree

45° 15'

Valve stem diameter intake (mm)

4.963 - 4.978

Valve stem diameter exhaust (mm)

4.955 - 4.97

Valve spring free length (mm)

45.45 - 46.2

Valve spring installed height (mm)

33.20

Camshaft lobe lift intake (mm)

9.00

Camshaft lobe lift exhaust (mm)

8.50

Camshaft journal to cylinder head bearing surface
clearance diametrical (mm)

•

Front bearing 0.035 - 0.095

•

Other bearings 0.025 - 0.085

Camshaft journal diameter standard runout limit (mm)

•

Center bearing to outer
bearing's 0.07

•

Other bearing to outer
bearing's 0.05

Camshaft journal diameter standard out of round (mm) 0.005

Maximum permitted cylinder head warp (mm)

0.125

Cylinder Head and Valve Train - Vehicles with 4.2L engine without supercharger

Item

Specification

Valve guide inner diameter (mm)

5.02

Intake valve effective length (mm)

88.87 - 89.17

Exhaust valve effective length (mm)

88.40 - 88.70

Valve stem to guide clearance intake - diametrical
(mm)

0.012 - 0.067

Valve stem to guide clearance exhaust - diametrical
(mm)

0.02 - 0.075

Valve head diameter intake (mm)

34.8 - 35.0

Valve head diameter exhaust (mm)

30.8 - 31.0

Intake valve face angle degree

45° 15'

Exhaust valve face angle degree

45° 15'

Valve stem diameter intake (mm)

4.963 - 4.978

Valve stem diameter exhaust (mm)

4.955 - 4.97

Valve spring free length (mm)

45.45 - 46.2

Valve spring installed height (mm)

33.20

Camshaft lobe lift intake (mm)

8.50

Camshaft lobe lift exhaust (mm)

8.50

Camshaft journal to cylinder head bearing surface
clearance diametrical (mm)

•

Front bearing 0.035 - 0.095

•

Other bearings 0.025 - 0.085

Camshaft journal diameter standard runout limit (mm)

•

Center bearing to outer
bearing's 0.07

•

Other bearing to outer
bearing's 0.05

Camshaft journal diameter standard out of round (mm) 0.005

Maximum permitted cylinder head warp (mm)

0.125

Cylinder Head and Valve Train - Vehicles with 4.2L engine with supercharger

Item

Specification

Valve guide inner diameter (mm)

5.02

Intake valve effective length (mm)

88.87 - 89.17

Exhaust valve effective length (mm)

88.40 - 88.70

Valve stem to guide clearance intake - diametrical
(mm)

0.012 - 0.067

Valve stem to guide clearance exhaust - diametrical
(mm)

0.02 - 0.075

Valve head diameter intake (mm)

34.8 - 35.0

Valve head diameter exhaust (mm)

30.8 - 31.0

Intake valve face angle degree

45° 15'

Exhaust valve face angle degree

45° 15'

Valve stem diameter intake (mm)

4.963 - 4.978

Valve stem diameter exhaust (mm)

4.955 - 4.97

Valve spring free length (mm)

45.45 - 46.2

Valve spring installed height (mm)

33.2

Camshaft lobe lift intake (mm)

9.0

Camshaft lobe lift exhaust (mm)

8.1

Camshaft journal to cylinder head bearing surface
clearance diametrical (mm)

•

Front bearing 0.035 - 0.095

•

Other bearings 0.025 - 0.085

Camshaft journal diameter standard runout limit (mm)

•

Center bearing to outer

www.