Service 3.8 L - Terry`s Jaguar Parts
Contents
1. connector to expose the terminal end Push home fully onto the blade and slide the insulating sleeve forward to cover the joint Seal the tube entrance 6 enclosing the fuel pump electrical wire with epoxy resin Replace the trim panels Jaguar Cars Limited 2005 Jaguar Cars Limited 2005 JAGUAR Number 15 Section Carburetter and Fuel System Sheet of 1 Date March 1963 INTRODUCTION OF MODIFIED FUEL PUMP DIAPHRAGM TO OVERCOME FAILURE TO OPERATE AT LOW TEMPERATURES Mark 2 Models Cars with the AUB 152 type fuel pump see Service Bulletin 10 now have a modified type diaphragm Part No 9098 unchanged B on the illustration overleaf This diaphragm has a single neoprene leaf Item 1 and a translucent plastic leaf Item 3 and must be fitted with a gasket Item 4 at each side of the diaphragm Two gaskets will be supplied with each diaphragm THe earlier diaphragm on illustration has two neoprene leaves Item 1 and 2 and 8 translucent plastic leaf Item 3 This type of diaphragm only assingle gasket Item 4 fitted Fuei pumps with the single layer diaphragm can be identified by X6 or subsequent numbers stamped on the top of thc valve body adjacent to the flange of the coil housing If on cars prior to the introduction of the new diaphragm trouble is experienced with the pump failing to operate at temperatures below 79c 229F either the latest type pump or the new single leaf di2. 4 S Model 7B 3392 3 8 S Model 7B 55353 4 2 Mark 10 7D 50651 4 2 F Type 7E 2226 On cars with the above engine numbers and onwards Viton tipped ncedles are fitted to the carburetter float chambers These needles are easiJy recognised as they have a black rubber tip The part number of the needle and seat assembly is 10532 S U Part number AUD 9285 If used as replacements for the previous needle and seat they must be fitted together PETROL PUMP WASHERS Models affected 2 4 litre Mark 2 3 4 litre Mark 2 3 8 litre Mark 2 3 4 3 8 S 4 2 Mark 10 4 2 E Type AUF 301 series petrol pumps are now fitted with rubber seals Part number 10767 for the valves and filter in place of the cork washers Part number 10187 used previously Pumps so modified are marked B 4 If valve trouble is experienced or if a pump with cork washers is being overhauled the latest type of rubber washers should be fitted Jaguar Cars Limited 2005
3. Chassis Numbers Drive L H Drive 2 4 litre Mark 2 126777 112791 3 4 litre Mark 2 178153 159939 3 8 litre Mark 2 220992 208402 On cars with the above chassis numbers and onwards an improved fuel pump S U number AUB 152 is fitted The diaphragm incorporates a protective backing to improve reliability and prevent leakage The diaphragm is interchangeable with the earlier type A modified rocker arm to reduce noise from tne pump is also fitted and is interchangcable with the earlier type Spares Bulletin number 0 42 refers Jaguar Cars Limited 2005 Service Bulletin No C 12 continued Sheet 2 of 2 IMPORTANT It is essential when fitting the breather pipe tube 11 that it is positioned as high as possible behind the boot aperture flange Drill clip and secure to the body side member with a self tapping Screw Attach the long breather pipe 13 to the nylon tube and cover the whole length with electrical type p v c tubing Insert the end of the breather tube through the rear grommet Clip the breather pipe to the body utilising the electrical harness clips behind the boot aperture flange Note Ensure that the pipe is positioned as high as possible So that only 1 to 2 of pipe protrudes below the body Seal the breather tube 3 with the nylon bung BD 24547 and coat with an epoxy resin such as Araldite Petrol Filler Box and Drain Tube Seal the full length of the petrol filler box seam 1 with
4. of the new peirol pump see Spares Bulletin number Q 20 Jaguar Cars Limited 2005 JAGUAR Number C 6 Section Carburetters and Fuel System Sheet 1 of 1 Date October 1961 HEAVY PETROL CONSUMPTION 3 4 and 3 8 litre Mark 2 Models In cases of complaint of heavy petrol consumption on 3 4 3 8 litre Mark 2 cars fitted with paper air cleaners and having 8 to 1 compression ratio it is recommended that 0 1 Carburetter jet needles Part Number C 19797 are fitted It should be noted however that these needles must only be fitted to cars with 8 to 1 compression ratio and paper air cleaners Also ensure that the air cleaner is not clogged and renew if necessary The C I type carburetter needles will be introduced in pro duction in the near future Jaguar Cars Limited 2005 JAGUAR Number C 7 Section Carburetters and Fuel System Sheet 1 of 1 Date December 1961 FUEL TANK FILTER Models affected Commencing Chassis Numbers Drive L H Drive E Type Fixed Head Coupe 860005 885021 Open 2 seater 850092 875386 On cars with the above chassis numbers and onwards a modified fuel tank filter is fitted The filter is located within a one piece drain plug and sump tube on the underside of the petrol tank At intervals of 10 000 miles 16 000 km drain the fuel from the tank into clean container by removing ihe drain plug tube It will be advantageous to carry out this operation when the tank is low in fuel Remove
5. with the introduction of this new type of needle the seat float lever fork and float chamber lid are also modified For the time being carburetters with the new needle valve wili have a dab of black paint on the identification label attached to the float chamber lid Interchangeability a The new type of float chamber lid assembly is interchangeable with the previous type as a complete assembly b The new type needle and eat can be used to replace the previous type provided the original lever fork is retained c The old type needle and seat must NOT be fitted to the new type of float chamber lid embossed AUD 2283 or 2284 on the inside d The float lever forks are NOT interchangeable and must be kept to their respective lids Spares Bulletin No B 17 refers Jaguar Cars Limited 2005 BEND g 6 i 1 MM DIA TEST BAR Jaguar Cars Limited 2005 JAGUAR INTRODUCTION OF NEW TYPE Models affected 2 4 litre Mark 2 3 4 litre Mark 2 5 8 litre Mark 2 Commencing with the above are fitted with the same type of fuel 5 4 5 818 models This type of fuel pump 15 SerVtee Buttetirm cz2l Number C 23 Section Carburetters and Fuel System Sheet of 1 Date May 1964 FUEL PUMP Commencing chassis numbers R H Drive L H Drive 117610 127550 166654 179855 232676 223683 chassis numbers Mark 2 models pump AUF 301 as fitted to the described and illustrated in Jaguar Cars Limite
6. Continued Jaguar Cars Limited 2005 to collect any foreign matter in the cloth Screw the modified grease nipple Part No 8353 into the tapped hole in the petrol filler tube If the modified grease nipple is not available use a 4 UNF grease nipple Part C 304171 and grind away a little of the thread and remove the spring and ball Drill 2 6 55 mn hole in the floor of the petrol filler box as shown in Fig 2 Drill 2 6 55 mm hole in the side panel above the ex haust pipes as shown in Fig 3 Press a piece of plastic tube 164 42 long Part C 8244 onto the grease nipple screwed into the petrol filler pipe pass the plastic tube through the hole in the floor of the petrol filler box as shown in Fig 2 Pass the plastic tube through the hole in the side panel so that the end of the tube is facing away from the exhaust pipes as shown in Fig 5 Blank off the two vent holes in the petrol filler cap with solder as illustrated in Figi Refit the petrol filler cap Jaguar Cars Limited 2005 Service Bulletin 0 1 continued Sheet 2 of 2 Fig Jaguar Cars Limited 2005 JAGUAR Number 6 2 Section Carburetter and Fuel System Sheet 1 of 4 Date July 1960 PETROL FILLER BREATHER PRODUCTION MODIFICATION 2 4 3 4 and 3 8 litre Mark 2 models A modification to overcome petrol fumes has now been incor porated in production and consists of a breather pipe in the filler ne
7. JAGUAR Number 1 Section Carburetters and Fuel system Sheet 1 of 2 Date June 1960 PETROL FUMES 2 4 3 4 and 5 8 litre Mark 2 models In the event of a complaint of petrol fumes arising it should first be established under what conditions the fumes are noticeable Persistent fumes irrespective of the amount of petrol in the tank are generally traceable to a slight leakage at some part of the petrol system Intermittent fumes irrespective of the amount of petrol in the tank are usually caused by intermittent carburetter flooding If however the fumes are only noticeable when thestank is less than half full and when one or more windows are open the complaint most probably arises due to fumes from the petroi cap vent being sucked into the car in which proceed as follows Material required Part No No off UNF Grease nipple Modified 8355 1 Plastic tube 165 42 long 6 8214 1 Open the petrol filler box lid and remove the petrol filler Insert a piece of lint free cloth into the petrol filler pipe to collect any foreign matter when the filler pipe is drilled Using No 3 6213 7 69 mm drill drill a hole 13 16 20 64 from the top edge of the filler pipe as shown in Fig 1 Tap the hole 2 UNF Coat the drill and tap with grease as a pre cautionary measure against pieces of metal falling inside the filler pipe Remove the cloth from the petrol filler pipe taking care 5
8. aphragm should be fitted If a new diaphragm is fitted it must be adjusted in accordance with the instructions given on pages 22 C 23 of the Mark 2 Service Manual except that the diaphragm must be backed off unscrewed 7 holes and not 5 6 as stated in the manual Note Tt may be possibie to start the pump if this trouble is experienced by leaving the ignition switch on for 2 3 minutes before starting the engine If failure to start is still experienced switch off the ignition for a further 2 3 minutes before trying again With the ignition switched on the coil of the pump becomes energized and sufficient warmth is generated to impart flexibility to the diaphragm Spares Bulletin No Q 55 refers Jaguar Cars Limited 2005 A Jaguar Cars Limited 2005 JAGUAR Number 15 Section Carburetters and Fuel System Sheet 1 of 1 Date June 1965 INTRODUCTION OF THE DELRIN FLOAT CHAMBER NEEDLE Models affected Commencing Engine Numbers 3 4 litre Mark 2 KJ 1250 3 8 litre Mark 2 LC 7069 Type 2464 10 ZA 9860 Commencing at the above engine numbers 0 carburetters are fitted with a Delrin needle valve This needle has a body of white plastic material and incorporates Spring loaded pin A in ildustration the object of this pin iS to overcome needie flutter due to engine rock wien idling musing slow flooding with consequent rough slow running or stalling In conjunction
9. ck adjacent to the vent pipe and a non vented filler cap Cars so modified can be easily identified by removing the filler cap and noting if there are two pipes in the filler neck as shown in the illustration below previous type petrol tanks have a single vent pipe in the filler neck The service modification for overcoming petrol fumes as described in Service Bulletin C 1 should obviously not be carried out on cars which inoorporate the above modification and if petrol fumes are present the cause should be sought elsewhere Furthermore it is essential that a car without amp service condition or production breather pipe is not fitted with a non vented filler cap otherwise petrol starvation or weakness of mixture may result Non vented filler caps can be identified either by the words Non vented embossed on the filler cep or by noting if the hole s in the underside of the cap have been soldered up 1108 Jaguar Cars Limited 2005 020 040 50 1 00MM Jaguar Cars Limited 2005 JAGUAR Number C 4 Section Carburetter and Fuel System Sheet 1 of 1 Date March 1961 FUEL PUMP STOPPAGES All models fitted with S U Fuel Pumps If failure of the fuel pump is experienced early in its life it may be due to initial settling resulting in variation of the dia phragm setting thus restricting the throw over of the toggle mech anism Before assuming the pump is faulty the setting of the dia phragm
10. d 2005 JAGUAR Number 6 25 Section Carburetters amp Fuel System Sheer I of 1 Date April 1965 CHANGING OF 5 0 PETROL PUMPS In a great number of cases where petrol pumps have been changed to overcome fuel supply troubles there has on investigation found to be nothing wrong with the pumps returned In the event of trouble with the fuel supply no attempt should be made to change the pump or to clean the internal filter until other possible causes such as blockage of the tank breather mentioned below have been investigated In future no warranty claims will be met against petrol pumps returned as faulty if on examination nothing is found to be wrong with them PETROL STARVATION DUE TO BLOCKAGE OF PETROL TANK BREATHER Mark 2 Models Cases have been experienced of petrol starvation due to the petrol tank breather becoming blocked with road dirt and also water entering the tank through the breather pipe In this event the breather pipe should be cleaned and if positioned to rear of the filler neck the pipe should be re routed to the front and clipped to the petrol tank flange as shown in the illustration Jaguar Cars Limited 2005 Jaguar Cars Limited 2005 JAGUAR Number 26 Section Carburetters amp Fuel System Sheet 1 of 1 Date April 1965 INTRODUCTION OF VITON TIPPED FLOAT NEEDLES Models affected Commencing engine numbers 3 4 litre Mark 2 KJ 6767 3 8 litre Mark 2 LE 2031 3
11. dum dum Replace the existing petrol filler 2 with non vented type C 17566 Examine the rubber filler box drain tube 9 for cracks or deterioration and if necessary fit a new tube Part number BD 21930 1 PETROL TANK Remove the brass nut 6 securing the petrol pump cable to the petrol tank cover plate Remove the ten setscrews washers and stiffener plate retaining the cover plate in position To facilitate re assembly mark the position of the cover plate in relation to the petrol tank as the setscrews are unequally spaced Remove the cover plate 5 complete with petrol gauge unit taking care not to damage the float Discard the cork washer and fit washer C 21670 Refit the cover plate 5 and stiffener plate foont 4 Jaguar Cars Limited 2005 Check the petrol tank foam mounting pads for petrol fumes and if necessary replace the pads When refitting the petrol tank discard the hose 4 between the petrol filler box pipe and the tank and replace with C 21567 Refitting the petrol tanks is the reverse of removal procedure Replace the fuel gauge cables with the white and green cable to the terminal marked W and the green and black to the terminal marked T The black cable should be fitted to the earth terminal on the element housing NOTE To ensure the cable connectors are correctly attached to the blade terminals on the fuel gauge tank unit slide back the insulating sleeve from the cable
12. should be re checked as described on page C 22 of the 2 4 3 4 litre Service Manual except that a four holes back setting should be used The five to six holes back setting recommended in the Service Manual should be used when a new contact breaker is fitted Whilst the pump is dismantled 1 is also advisable particularly in hot climates to pierce the upper diaphragm only that is the one next to the rollers as shown in the sketch overleaf Continued Jaguar Cars Limited 2005 3 EQUISPAC ED 32 24MM HOLES 13 TS 2 p 62 y 32 24MM HOLE Jaguar Cars Limited 2005 JAGUAR Number 5 Section Carburetters and Fuel System Sheet 1 of 1 Date June 1961 SHORT BODY S U FUEL PUMPS Models affected Commencing Chassis Numbers Drive Drive 2 4 litre Mark 2 106395 126248 3 4 litre Mark 2 154030 176828 3 8 litre Mark 2 203318 216064 Mark IX 775894 793867 On cars with the above chassis number and onwards a modified fuel pump is fitted The new pump has a shorter coil housing than the original type new coil housing is approximately 24 57 1 mm in length as against 22 69 8 mm of the previous type The servicing of the new type of pump is the same as for the previous type except that thej diaphragm setting when new contacta are fitted should be seven holes back and not five to six as recommended in Service Bulletin number 0 4 For the parts breakdown
13. the filter from the fuel pump inlet pipe by slackening the union nut and holding the filter then unscrewing the filter Thoroughly clean the filter assembly in fuel do not use cloth as particles may stick to the gauze Refit the filter to the fuel pump inlet pipe Refit the drain plug tube replacing the sealing washer if damaged Always filter the fuel before returning to the tank This filter is not interchangeable with that fitted previously Amendment to Service Bulletin Number C 6 Include the following information on Service Bulletin C 6 Since the issue of the above Bulletin the C I carburetter jet needle has been approved for use in 9 to 1 compression 3 4 and 3 8 litre engines with paper air cleaners Cars with the following Engine Numbers and onwards are fitted with C I jet needles 3 4 litre Mark 2 KH 2524 3 8 litre Mark 2 LB 7872 Jaguar Cars Limited 2005 JAGUAR Number 8 Section Carburetters and Fuel System Sheet 1 of 1 Date January 1962 FUEL TANK FILLER CAP Mark 1 and Mark 2 Models The rubber washer fitted to the fuel tank filler cap has been replaced with a cork composition washer This washer retains the same part number 8421 and is interchangeable with that fitted previously Jaguar Cars Limited 2005 JAGUAR Number 10 Section Carburetters and Fuel System Sheet 1 of 1 Date June 1962 IMPROVED DIAPHRAGM AND OPERATION OF THE S U PETROL PUMP Models affected Commencing
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