Jaguar Vehicle Specifications (2003 year). Instruction - page 5

Engine Cylinder Numbering and Firing Order

15

Notes

2.0 Liter Diesel –

Cylinder Numbering and Firing Order

X-TYPE

2004.25 MY onwards

Front of Engine

Firing Order

1 – 3 – 4 – 2

Engine Valve Clearances

16

Notes

Engine

Valve Clearances (cold)

Intake

Exhaust

V8

0.18 – 0.22 mm

0.23 – 0.27 mm

V6

0.175 – 0.225 mm

0.325 – 0.375 mm

2.0 Liter Diesel

No adjustment necessary

Spark Plug Specification

17

Model/Engine

VIN

Market

Spark Plug

Part Number

Spark Plug Gap

mm (inches)

Engine Type

From

To

XJ: 1998 MY
3.2 liter

812317

853935

ROW

NCA385OFA 1

1.2 – 1.3 (0.047 – 0.051)

AJ26 V8

4.0 liter

NAS

NCA385OHA 1

1.2 – 1.3 (0.047 – 0.051)

ROW

NCA385OFA 1

4.0 liter – supercharged

All

NCA385OHA 2

1.2 – 1.3 (0.047 – 0.051)

All

Leaded

NCA385OCA (service fit only)

1.0 – 1.1 (0.039 – 0.043)

XJ: 1999 up to 2003.5 MY
3.2 liter

853936

F59525

ROW

AJ8 4575 (iridium)

0.9 – 1.0 (0.035 – 0.039)

AJ27 V8

4.0 liter

All

AJ8 4575 (iridium)

0.9 – 1.0 (0.035 – 0.039)

4.0 liter – supercharged

All

NCA3850HA 2 up to 2000 MY

1.2 – 1.3 (0.047 – 0.051)

AJ26.5 V8

AJ8 4575 (iridium) from 2000 MY

0.9 – 1.0 (0.035 – 0.039)

AJ27 V8

All

Leaded

XR8 15350 (service fit only) *

1.0 – 1.1 (0.039 – 0.043)

XJ: 2003.5 MY onwards
3.0 liter

G00442

Current

All

XR8 42795

1.32 – 1.42 (0.051 – 0.056)

V6

3.5 liter

All

AJ8 4575 (iridium)

0.9 – 1.0 (0.035 – 0.039)

AJ33 V8

4.2 liter

All

AJ8 4575 (iridium)

0.9 – 1.0 (0.035 – 0.039)

4.2 liter – supercharged

All

AJ8 4575 (iridium)

0.9 – 1.0 (0.035 – 0.039)

Note: * Not applicable with the introduction of “iridium” spark plugs.

Notes

Spark Plug Specification

18

Model/Engine

VIN

Market

Spark Plug

Part Number

Spark Plug Gap

mm (inches)

Engine Type

From

To

XK: 1997 up to 1998 MY

4.0 liter

001246

018107

NAS

NCA385OHA 1

1.2 – 1.3 (0.047 – 0.051)

AJ26 V8

ROW

NCA385ODA 2

1.0 – 1.1 (0.039 – 0.043)

Leaded

NCA385OCA (service fit only)

XK: 1998 and 1999 MY

4.0 liter

018108

A00115

NAS

NCA385OHA 1 up to 1999 MY

1.2 – 1.3 (0.047 – 0.051)

AJ26 V8

AJ8 4575 (iridium) from 1999 MY

0.9 – 1.0 (0.035 – 0.039)

AJ27 V8

ROW

NCA385OFA 1 up to 1999 MY

1.2 – 1.3 (0.047 – 0.051)

AJ26 V8

AJ8 4575 (iridium) from 1999 MY

0.9 – 1.0 (0.035 – 0.039)

AJ27 V8

4.0 liter – supercharged

**

All

NCA385OHA 2

1.2 – 1.3 (0.047 – 0.051)

AJ26 V8 and

AJ26.5 V8

All

Leaded

NCA385OCA (service fit only)

1.0 – 1.1 (0.039 – 0.043)

XK: 2000 up to 2003 MY
4.0 liter

A00116

A30644

All

AJ8 4575 (iridium)

0.9 – 1.0 (0.035 – 0.039)

AJ27 V8

4.0 liter – supercharged

All

AJ8 4575 (iridium)

0.9 – 1.0 (0.035 – 0.039)

All

Leaded

XR8 15350 (service fit only) *

1.0 – 1.1 (0.039 – 0.043)

XK: 2003 MY onwards
4.2 liter

A30645

Current

All

AJ8 4575 (iridium)

0.9 – 1.0 (0.035 – 0.039)

AJ33 V8

4.2 liter – supercharged

All

AJ8 4575 (iridium)

0.9 – 1.0 (0.035 – 0.039)

Note: * Not applicable with the introduction of “iridium” spark plugs.
Note: ** Supercharged engine introduced at VIN 024687.

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