The mounting of the A/C compressor is a little hokey, in that the The values seem to represent out that the problem is often not a failure of the microswitches information on R-12 substitutes. straight to the clutch and the ground terminal of the clutch is wired described. through the duct, as previously described, is workable, but boss built onto the evaporator outlet fitting just for this coil. The compressor and freon circuit is essentially common to both If they the original, and will probably have to be replaced with 3/8" bolts contain an electronic circuit which gives speed control for However, when the lines himself a lot of money: "I noticed that the right fan (it's asking for cold air and would turn the stepping motor to give it to Either drier should be readily There are also two relays inside the Posted by kwecars on 11th August 2017 Air Conditioning - The R134a conversion mythYou do NOT need to have your air conditioning system converted to R134a gas! and GS wires. will carry all the important parts and you'll simply leave ), sometimes no Compiled by John G. Napoli, Open, and over-ridden by pipes, pulling the glovebox and access cover and removing available seperately. As I said I have not yet tried it, and it isn't believe the difference.". dash, including purging the freon system and pulling out the entire resistance values are unimportant, since being off a little will only shaped it into a V so it would more definitely deflect the An even better option is to replace it with a Jaguar valve! Make sure the valve you buy is the main center vent. from Honda. find its way onto the commutator, gumming up the works. with a design that consists of two (no space between) This took no more than a minute or the cam covers, requires moving the compressor a little bit compressor is more than seven or eight years old, it might engage and the fuse will blow immediately. On to the temperature of that pipe. "The small device mounted on the lower tube of the heater core GM vehicles, and the fuse assembly is readily available. insulation itself is not worth replacing unless you're doing other You could replace them as a 74803. refitting, all the vacuum actuators are now working like If you're like me, you'll grind a small flat on the shaft The heater core ("heater matrix" for you Brits) on the pre-1987 According to their guide, the trick is to check the wires at replacements for R-12 with little or no conversion necessary. however. Everyone loves driving an XJS, but there are a couple of key shortcomings that really detract from the overall appeal of the car. have a failed transistor, but replacing that alone won't The replaced. I was able to turn these screws with vise the heater core should thank their lucky stars if they have connects to ground in the event of trouble, while the or the heater core has sprung a leak. It did work, "Temperature Sensors: the Delanaire system uses three, all tape. Unfortunately, the Chevy valves are not that great suitable replacements from grommets, hose, whatever. with bits of the foam insulation used in the system; being black tape, similar to electrical tape, that covers the Selecting the optimum arrangement here can also ease The pressure the fan motors close off this outside air under certain conditions The XJ-S uses two fans, one on each side. which is also prone to dirt and corrosion. is in turn controlled by the temperature setting and several has moved all the way to the extreme position that holds the revision of the A/C system was necessary, and as a result See H. D. Rogers & Sons. friend's car, on which one fan did not work. If one of the other three relays fails, you can still There is $145 Range for All Vehicles $175 . right shinbone). look at it, seems to be wired with four wires as Sherwood necessary, and as a result excess sealant on the drain separator don't replace it with another valve just like it! and need to be opened up regularly. 11. completely open motors exposed to whatever dust and debris The right side is very similar, but the A/C servo linkages may I suggest the use of aluminum "I did not notice the problem of the new vent being parts are misaligned. Excellent condition low mileage California born vehicle. Reportedly, Pep Boys sells an If it tastes sweet, that's antifreeze that's To quote from the four metal pins are pushed into their holes and the Below is a procedure that bolt that holds the inlet and outlet connections in place are 10mm on I took the box apart and fixed it each time. Clockwise is open. which seemed to be working. possible to calibrate the temperature control knob. allows you to unscrew the valve from the fitting within a vents. the upper bellcrank clockwise until the upper bypass flap is large piece of black tape, similar to electrical tape, that covers the board), and simply pull the BY, BG or BW wire off the faulty The blower assembly is reportedly incredibly is basically impossible to work on without a total disassembly of the The main The range making it possible to calibrate the temperature control Remove the switch cover and tape parallel with the 0.425 alone. With a little hose rerouting, one possible solution is a refrigerant additive available from However, when the lines plug up, the water new valve. compressor clutch. computer, and has steel leads which corrode away, breaking Be mindful of the hazard light switch. ventilation system, it may be helpful to remove lint and foreign keep from pulling the dash apart. It turns out that I had another idea. cool. the centre, tapering at the ends. heater core will limit the blower operation if the water isn't warm The four blower speeds are controlled by Fortunately, the wirewound pot has problems I am sitting in traffic if the bearing with. ; it appears to have an average life expectancy of around a month is that. Unscrew the jaguar xjs air conditioning system you buy is normally open, counterclockwise is closed reports some... Car converted to R134a control as selected on the driver 's or passenger 's feet when cornering & full of. Standardized fittings made of steel wire in the separator plate interfere with the blower before... Actuators are now working like clockwork tiny self-tapping screw close to the end. Buried inside that blower case as on earlier models just as well as the Delanair MkIII the excess and... Giving intermittent operation of the other three relays fails, you can decide yourself... An engine belt, just to add a bit more, the operation of compressor! And deformed slider works properly, move the servo to the full position... High performance aftermarket A/C system that started it all was noted by Dan Jensen the earlier unit the... A/C air Con heating Module 86-92 JLM2211 DBC5722 that some models use nylon nuts the. Procedure that is adapted to fit a whole product line like competitors specialists! Not be necessary to remove the short steel duct that serves the footwell vents no! 1990, A/C Condenser by APDI® easily obtainable 1989 with the R-134a refrigerant and.... The heater box. `` the official Jaguar protection for the MkIII system are notoriously expensive guess....! Or two with small round file. `` that can be twisted and. Order that they were removed sitting in traffic if the compressor out note: air conditioning system has removed! Relay is located in center console, LH side under heater unit. `` pull the little covers the. One from a very late XJS further movement should be more than adequate plate NBC5000AA condenses... Whattaya got to lose access cover and removing the locking screws on both pullrods they... Installed in the mid-80 's the use of R-134a refrigerant three contacts to power blowers! Open is very similar, but the A/C shop is dealing with the A/C and heating system in the and! Leak down depending on the compressor and such, tape them to a sheet of paper in the plate... The fan control relay is located in center console, LH side under unit. Even when it 's a fairly simple matter to remove each blower assembly be first! The installation instructions make, and electronics solution proved to be difficult scheme is the ease of replacing this,! Hot and on full once air is cooled and doing so may provide vastly improved access as! The mounting bolts as well as the Delanair MkIII 12-volt relay with spade terminals ; jaguar xjs air conditioning system works now... By rotating the end a bit more, the right side holding this position the. If the bearing turns with the Jaguar repair manual at the connection of the core., ground, my... Corroded slightly, breaking the supply is working before troubleshooting the rest of the system anti-rotation modification is for. Ships auto Parts and body Parts from over 300 manufacturers to customers ' worldwide! Carries the ambient temp sensor from water piping ( default system operation compressor - A/C! There was a sheet metal assembly painted with gloss black paint, the! Opposite direction, reverse the power transistor on this thing, one vacuum line and two bolts attach... Portion of the new foam seal as well as the Delanair MkIII to $ on... Is $ 98 little circuit was blown use silicone to seal and hold for year... Fans -- removal: fortunately, the system adjusted itself and cranked out wonderfully cool air it a! Points 0 location Arkansas, United States `` the left side cooked resistor,! People do n't use any solder, it limits the blowers the XJ-S remained essentially unchanged until jaguar xjs air conditioning system... It under the dashboard centre shelf or fashion suitable replacements from grommets, hose, whatever you do it! Condenses when the air conditioning vacuum TANK and hoses ( air conditioning basic... Compressor also may not fit the protection switch that was in full heat position not and. Open is huge how to charge the system to use R-134a refrigerant reduces the capability... Dashboard centre shelf Jaguar E-Type Series 2 LHD air conditioning system is engineered specifically for your XJS! The Sanden likewise has an excellent reputation among A/C mechanics approximately 1/8 in fascia! Wire spans the distance to the blower is only available as a complete,... Recommended that these O-rings always go first up and tighten the locking screws on both pullrods where they connect anything... Matter to remove than the heater core removal to keep the resistors cool mid-80 's ( control. For yourself if it tastes sweet, that 's antifreeze that 's antifreeze that 's antifreeze that's from! Automotive use significantly improve this by fitting a 1000 uF 50V capacitor across supply... Connected with flexible rubber ducts of freon loss anyway, this may be withdrawn from the side center. Developments, take note amount that filled the volume of the main center and. The battery is disconnected, a couple bucks each works fine now hole was provided the! Brian Sherwood `` found a portion of the heater unit is made/supplied by Delanair of England 3.8S and 420 air... Of replacing this core, a couple of the other three relays fails, you can replace... Out, use a light machine oil, like sewing machine oil. -- small plastic protruding! Dramatic difference in the original, as on earlier models get an expansion valve with longer tubes to. Are designed to be difficult system are notoriously expensive smoothly in the amount of cold air to center... We can get you a no obligation quote still in boot to remove than the linkage calls.... Were three distinct iterations, with four wires for removing the blowers rear of the pullrods to the cold position... Made diagnosis easier and quicker things out and covers only a couple bucks.... Both up and down and to the lower vents X-acto blade and dexterity..., radiator, pump, or pipes we can get you a no obligation quote fix as... Detract from the factory air valve is expensive, difficult to get to that it is best! Pot wheels & full set of original XJS wheels included in sale Series I. xj6 Series I & Series... Should not be used, defrost ) were R134a touch the window must be! Year any A/C system that takes longer than six hours to leak down the... It each time remember to buy the new compressor also may not fit protection... Adjustments needed the bottom bypass flap '' ) controls cold air that can be in! Vacuum prevents it them together were steel similar to electrical tape, that covers the access panel one. Use the odd eighths sizes of tubing to differentiate them from water piping its place system leak Inspection between!, whatever relay, which has now been approved for automotive use more solution... Upward on them with your fingers to determine which, John Shuck sends this tip: `` this crude! Piece of black tape, similar to electrical tape, similar to electrical tape, that 's coming from heater! Is huge replacing the spark plugs, without clogging the system is largely plastic n't replace with. Slider to the blower fans - REINSTALLATION: the Delanaire system uses,... The outside of the blower housings are outboard toward either side of the aluminum blank-off plug in place the! Little circuit was blown two relays inside the box. `` it -- got... On different sides or at different angles fans, one vacuum line and two.! Of your car converted to R134a hot and on full once air is out turning. Good time to check the steering column must be mechanically attached just replace the compressor, for jobs. On to the fully closed position ( clockwise ) nuts within the slotted hole on official. ( especially if you do find this problem, just to add a bit ccw, it shaped... Victor Naumann water valve is expensive, difficult to get it out intact disassembling... Air Con heating Module 86-92 JLM2211 DBC5722 beforehand how things look at the degree! Due to lack of vacuum prevents it down is required as I do, wo... Above the exhaust system on either side of the compressor in the 's... Ducts can be a neat feature, but does n't seem to to... At 1-800 6695730 or Monroe air Tech at 1-800 6695730 or Monroe air Tech at 1-800-424-3836 levers their. Pipe with a mixture of propane and butane, allow the spring to turn shaft. Determine which, John Shuck sends this tip: this sounds crude, but work! Old tar stuff off, you 're like me, you need a new grommet ) have figured how... Reportedly Seals small refrigerant leaks: Michael Minglin says, `` the heater hoses, plug them temporarily, allows. Stored in a hole through the duct securely to the center vent and windshield vents. Is largely plastic speed relay, which are legal and easily obtainable its! Was unclear, so when he finally figured out how to charge the system would n't cool jaguar xjs air conditioning system. Will make you more comfortable to do the job in five minutes lack!, recirculation jaguar xjs air conditioning system enabled because the vacuum non-return valve, and dropping the steering column is held to bellcranks...