I Service Bulletin - Terrys Jaguar Parts

I Service Bulletin

Date

MAY 1984

Sheet 1 of 2

Bulletin JD.05/84

ITEM 37

03 AMENDMENTS

XJ-S/XJ-SC

Printing errors have occasioned incorrect information appearing in the English language XJ-S Repair Operation Times, publication number AKM 4412/83.

On page 10, Operation number 26-25-32 should read as follows : -

26-25-32 Fan Motor Diode Pack- Remove & Refit.

The repair times against this operation are correct. Any claims for changing a coolant level probe should be made agein!=t the operation:-

26-40-11 Coolant Level Probe - Remove and Refit.

On page 23 the final operation number and description are incorrect. As printed , the fina1 entry reads:-

64-35-28 Radius Arm - Remove and Refit.

Please amend this to read:-

64-35-29 Radius Arm Bushes - Remove and Refit.

The time of 1.00 hrs. against this entry is correct, and no other operations or times are affected.

Jaguar Cars Limited

Jaguar Cars Limited 2005

ITEM 38

12 CAMSHAFTS

XJ-SC 3.6/XJ-S 3.6

Since the introduction of the Al6 engine, a modification has been carried out to the camshafts to give an improved location for the camshaft setting tool 18G 1433. The locating flange diameter has been increased from 39mm to 41.275mm with the effect that the slot for the locating peg is now deeper and the inside faces of the tool fit closely around the flange.

The new camshaft part numbers are:

EAC 6367- Inlet EAC 6366 - Exhaust

These camshafts were introduced into continuous production at Engine numbers:-

9DP BLA 100288- A emission 9DP AMA 100289- B emission

Certain engines prior to these numbers were modified in. Production.

Where Dealers are unable to obtain a positive location for the Camshaft setting tool, when resetting the valve timing on earlier engines, please contact:- Customer Service Department, Jaguar Cars Limited.

ITEM 39

12 SPARK PLUGS

V12 MODELS

To overcome spark plug foul problems associated with multiple cold starts during transit and as a protection against radiated electrical interference with radio telephones, where fitted, copper cored resistive spark plugs have been introduced on V12 engines.

The new spark plugs, Jaguar Part No: J LM 204 (Unipart No: GSP 466, Champion RS5C)

were introduced at Engine Numbers:

7P 50256 - Saloon

as 29277 - XJ s

ITEM 40

19 FUEL RECIRCULATION SYSTEM

SERIES Ill 4.2

To improve the operation and reliability of the fuel recirculation system several revisions have been made to the internal design of the fuel changeover solenoid valve located in the rear of the boot, and to the normally closed recirculation valve located in the rear right hand wheel arch.

Revised changeover solenoid valves were introduced on Jaguar Production at VI N 370660, and revised recirculation valves were introduced at VI N 3841 00.

The part numbers for these valves are as follows: -

Fuel changeover solenoid R.H. Fuel recirculation valve

New Part No. Old Part No. CAC 8000 CAC 3941 CAC 8346 CAC 3988

Jaguar Cars Limited 2005

SERVICE BULLETIN JD.OS/84

Sheet 2 of 2

The new valves are fully interchangeable with the old valves and are available from Parts Division.

To aid fault diagnosis with the fuel recirculation system Service Personnel should refer to the following chart, which was previously issued in Service Bulletin JD 01/80, Item 003.

DIAGNOSTIC CHART

Fuel transfer

L.H. Fuel tank selected

I

Transfer

I

I

Transfer

to L.H. tank

to R.H. tank

(see section 1)

(see section 2)

R.H. Fuel tank selected

I I

Transfer

Transfer

to L.H. tank

to R.H. tank

(see section 3)

(see section 4)

Section 1

FUEL DELIVERY LINE

(i)

Tank change over solenoid (CAC 8000) stuck partially open.

(ii) Dirt on change over solenoid (CAC 8000) R.H. seat.

(iii) Pick up filter in L.H. tank partially blocked. This may be accompanied by excessive

fuel pump noise.

Section 2

FUEL RECIRCULATION LINE

(i)

R.H. recirculation solenoid (CAC 8346) stuck open.

(ii) Dirt on seat of R.H. recirculation solenoid.

(iii) L.H. recirculation solenoid (CAC 3939) stuck closed.

Section 3

FUEL RECIRCULATION LINE

(i)

No electrical feed to L.H . recirculation solenoid (CAC 3939) .

(ii) L.H. recirculation solenoid coil open circuit or high resistance.

(iii) L.H . recirculation solenoid stuck open or dirt on seal face.

(iv) R.H. recirculation solenoid (CAC 8346) stuck closed or restricting flow.

(v) No electrical feed to R.H. recirculation solenoid.

(vi) R.H. recirculation solenoid coil open circuit or high resistance.

Jaguar Cars Limited 2005

Section 4

FUEL DELIVERY LINE

(i)

Tank change over solenoid (CAC 8000) earth contact not made.

(ii) Tank change over solenoid open circuit or high resistance.

(iii) Tank change over solenoid partially open or dirt on L.H. seat.

(iv) Pick up filter in R.H. tank partially blocked. This may be accompanied by excessive fuel pump noise.

If whilst investigating reports of fuel transfer, it is found that the solenoids are contaminated, the fuel tanks MUST be drained to ensure contaminant is removed.

VALVE OPERATION:

XX Represents electrical feed supplied to a solenoid.

X

Represents no electrical feed supplied to a solenoid.

VALVE L.H. Recirculation Solenoid Pt No: CAC 3939

R.H. Recirculation Sotenoid Pt No: CAC 8346

Tank change over Solenoid Pt No: CAC 8000

R.H. TANK SELECTED Valve closed XX no fuel flow

Valve open XX Allows fuel flow

Allows fuel flow XX from R.H. tank

L.H. TANK SELECTED Valve open X Allows fuel flow

Valve closed X no fuel flow

Allows fuel flow X from L.H. tank

ITEM 41

86 STARTER MOTOR

SERIES Ill 4.2 MODELS

IMPORTANT

Will Service Personnel please note that current Parts Technical Literature, and Parts Fiche information appertaining to Series Ill 4.2 Models showing details of Starter Motor DAC 9505 as a replacement on this model is INCORRECT.

DAC 9505 is specified for Daimler Limousine models ONLY.

Should replacement be required on Series Ill 4.2 Models, Starter Motor Part No. GEU 424 should be ordered.

Parts information will be amended accordingly.

Jaguar Cars Limited 2005

Service Bulletin

* 2nd ISSUE*

DATE: JULY 1987

SHEET:

1 of 4

BULLETIN: JD 07/87

ITEM: 49

11/ OIL SEAL REPLACER

XJS 3.6/XJ6 2.9 & 3.6

99 Since the introduction of the AJ6 engine, improved auxiliary drive oil

seals have been introduced on engine build. To ensure that a new power

hydraulic pump drive oil seal is installed to the correct depth, Service

Tool JD.l51 auxiliary drives oil seal replacer has been introduced. This

replaces 18G 1469 auxiliary drives oil seal replacer,

To avoid confusion, all Dealers on receipt of JD 151/X, should discard 18G 1469/1, but ret~ the seal installer sleeve 18G 1469/2 for use with JD 151/X.

All new orders for JD 151 to V.L. Churchill however, will receive the new tool JD 151/X together with renumbered sleeve JD 151/2.

Distribution details of this additional minimum standards tool will be advised to you by Service Development Bulletin.

ITEM: 50

19 FUEL RECIRCULATION SYSTEM

S. III

To improve the operation of the fuel recirculation system, a revised fuel changeover solenoid valve and recirculation valve have been introduced on S.III production from VIN 472652.

The part numbers for these valves are as follows:-

New Part No. Old Part No.

Fuel changeover solenoid Fuel recirculation valve

CBC 4269 CBC 4270

CAC 8000 CAC 8346

Parts interchangeability is not affected and new parts are available from Parts Division.

Jaguar Cars Limited

Jaguar Cars Limited 2005

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