Chapter C Air Conditioning Rroc-Books Pdf

Chapter C AIR CONDITIONING RROC
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Rolls Royce Silver Shadow B Bentley T Series Workshop Manual. HEATING DEMISTING AND, VENTILATION SYSTEM, Section C1. Underwing ducting To remove 8 Slacken the worm drive clips securing the large. see Fig C1 air transfer tube between the carburetter and the air. silencerlcleaner, 1 On early cars the underwing ducting is fitted to. both sides of the car on late cars it is fitted to the 9 Remove the two clamp bracket screws securing. driver s side only In the operations that follow the the tube at a point midway between the ends of the. procedure is given for the removal of the ducting from tube remove the tube. both sides of the car 10 Withdraw the air silencerlcleaner intake tower. 2 Apply the hand brake and chock the rear wheels from the air silencer cleaner. of the car 11 Remove the centre knurled screw securing the. 3 Using the lever specially provided in the tool kit end cover and cleaner components to the air silencer. carefully remove the embellishers from the front cleaner box For further information on the air. wheels silencer cleaner refer to Chapter K Section K3. 4 Slacken the front wheel nuts note that from the 12 Remove the six setscrews securing the air. driver s seat the nuts on the right hand side of thecar silencer cleaner then remove the air silencer cleaner. have right hand threads and conversely the nuts on from underneath the wing. the left hand side of the car have left hand threads. 13 Remove the long ram air transfer tubes which, 5 Position a jack underneath the front lower are fitted beneath each front wing Each transfer tube. triangle levers pivot points Jack up the car so that is secured in position by two worm drive clips and. the front wheels are clear of the ground As a pre two clips with a nut and bolt fixing. caution against the jack failing support the front of. the car on two sets of wooden blocks placed under 14 Remove the three setscrews securing the inlet. neath the extremities of the lower triangle levers scoop which is secured underneath each wing at the. adjacent to the ball joints front of the car remove the two scoops. 6 Remove the wheel securing nuts and remove the 15 Using a wedge shaped tool lift back the trim. front wheels surrounding the ram air outlet ducts the trim is. 7 Remove the caps and screws securing the under secured in position by small tacks. sheets to the under side of each front wing remove 16 With the help of an assistant support the outlet. the undersheets The caps are fitted to the threaded ducting situated underneath each wing then remove. end of the screws which protrude through the body the four screws securing each circular outlet duct to. into the engine compartment the side scuttle wall remove the ducting. Workshop Manual Rolls Royce Silver Shadow Bentley T Series. FIG C1 R A M AIR DUCTING, 1 Flap valve 3 Control knob 5 Transfer tube 7 Duct 9 Worm drive clip. 2 Cable adjuster 4 Clip 6 Cable 8 Undersheet 10 Intake duct. 17 Remove the setscrews securing the circular pushed fully forward i e the closed position adjust. outlet fixing brackets to the side scuttle then remove ment is possible by a conventional type of threaded. the brackets together with the outlet assemblies from adjuster intcrposed in the cable length. Underwing ducting To inspect, 1 Examine the condition of the underwing ducting.
particularly the long transfer tubes and the flap seal Heater matrix To remove. fitted to the outlet duct 1 Drain the coolant from the radiator and heater. matrix into a clean container as follows, Underwing ducting To fit. 2 Remove the filler cap from the radiator header, Fit the underwing ducting reversing the procedure tank and open the three drain taps positioned one at. given for removal noting the following point the bottom of the radiator and one at each side of. 1 The circular outlet duct flap should be set so the crankcase On late cars the crankcase drain taps. that it makes a perfect seal when the control knob is are superseded by drain plugs. Ro s RoyceSilver Shadow Bentley T Series Workshop Manua. 3 To assist draining the heater matrix switch on, the ignition but do not start the engine then turn. clockwise either the UPPER or LOWER system, heating switch. 4 Disconnect the battery leads, 5 Scribe the profile of the bonnet catch mounting.
brackets onto their adjacent cadmium plated catch, parts see Fig C2. 6 Remove the bonnet catch springs, 7 Remove the screws securing the catch to the. mounting bracket then move the catch to one side, it is not necessary to disconnect the operating cable. from the bonnet catch, 8 Detach the strap securing the ducting between. each blower motor and the heater box, 9 Peel back the rubber sleeve connecting the.
ducting to the heater box then remove the ducting, 10 Remove the three nuts and washers securing the. wiper motor mounting bracket to the body also un, screw the union nut securing the wiper drive cable. into position move the motor to one side to facilitate. removal of the adjacent blower motor, 11 Disconnect the leads to each blower motor. 12 Remove the three 2 B A nuts securing each FIG C2 SCRIBING A LINE ON THE BONNET. blower motor to its housing CATCH MECHANISM TO FACILITATE ASSEMBLY. 13 Remove the three nuts inside each blower motor, housing and remove the housing from the bulkhead. 14 Remove the self tapping screws securing the, upper flap actuator cover plate to the heater box.
15 Release the lock nuts then disconnect the upper. flap control rods from the actuator levers To facilitate. re assembly retain the washers spring and nuts with. their respective control rods, 16 Disconnect the electrical connectors from each of. the upper flap actuators, 17 Remove the ten nuts and washers and the four. small self tapping screws securing the heater box into. position The self tapping screws are situated at the. two outer bottom sides of the heater box and are, partially hidden but can be removed by using a long. screwdriver, 18 Slacken the worm drive clips then disconnect the. rubber pipes from the heater matrix Withdraw the, heater box and heater matrix from the bulkhead.
aperture see Fig C3, 19 Remove the setscrews securing the heater matrix. to the heater box, Heater matrix To fit FIG C3 REMOVING THE HEATER BOX. Fit the heater box by reversing the procedure described AND MATRIX. for its removal noting the following points, 1 Check the condition of the various seals and 1 Heater box. ensure that they are fitting perfectly to their respective 2 Heater matrix. faces 3 Bonnet catch mechanism, Workshop Manual Rolls Royce Silver Shadow Bentley T Series. 2 To renew a seal remove the old seal and remove 8 Set the upper temperature flap and upper. the old Bostik from the face with Bostik cleaner quantity flap actuators as described under the. 6001 Allow approximately one hour for the cleaner to appropriate headings. dry then apply a liberal amount of Bostik adhesive. 1261 or its equivalent to the surface of the new seal. and its mating surface then fit the new seal into Control box To remove. position After approximately half an hour when the 1 Remove the heater box matrix see Heater. Bostik has had time to dry check that the seal is matrix To remove. secure Examine the heater matrix for signs ofleakage 2 Disconnect the lower temperature flap control. 3 If the heater matrix has been repaired or if a rod at its lower connection see Fig Cll On late. leak under pressure is suspected blank off the outlet cars remove the connecting pin. connection and connect an air supply to the inlet 3 Withdraw the control box through the bulkhead. connection Immerse the matrix in water and test at an aperture. air pressure of 30 lb sq in 2 ll kg sq cm, 4 Examine the upper flap control rods to ensure.
that they are not bent Control box flaps To set, 5 Examine the rubber hoses for signs of deteriora see Fig C4. tion and renew if necessary 1 Before attempting to set the flaps check the. 6 Care should be taken when fitting the heater box condition of the seals and renew them if necessary. to ensure that the upper flap control rods are not bent see Heater matrix To fit Operation 3. 7 Seal the joint between the control box and the 2 Hold the flaps firmly in the positions shown in. demister duct with 2 in 5 08 cm wide Gosherous Figure C4 i e temperature flaps in the hot position. tape or its equivalent and the upper quantity flap in the closed position. FIG C4 CONTROL BOX SErClNGS, 1 Upper temperature flap 5 Control box forward face. 2 Upper quantity flap 6 Lower temperature flap lever early type. 3 Upper quantity flap lever 7 Control box forward face. 4 Upper temperature flap lever 8 Lower temperature flap. 9 Lower temperature flap lever late type, A in l 1 l l mm B 3 in 22 22 mm C 1 in 3 02 cm D in 15 87 mm. Rolls Royce Silver Shadow Bentley T Series Workshop Manual. 3 Check the position of the levers to the dimen, sions given in the illustration and adjust ifnecessary. Note The control box temperature flap lever, should be set to either dimension C or.
dimension D depending whether the early, type or late type of lever arrangement is. fitted Dimension C is early and dimension, 4 Examine the joints of the control box any holes. should be sealed with Prestik or other similar sealing. Control box To fit, 1 Using a rubber lubricant on the seals inside the. bulkhead aperture e g Hellerine grade M fit the, control box into the aperture locating it on the studs FIG C5 CONTROL BOX FITTED INTO. BULKHEAD APERTURE, 2 Using a sealing compound such as Glasticon.
1 Sealing compound, or its equivalent seal the lower joint between the. 2 Rubber sealing strips, control box and the bulkhead see Fig C5. Upper flap actuators To remove, 1 Disconnect the battery. 2 Disconnect the electrical leads from the actuator. 3 Remove the self tapping screws securing the, upper flap actuators cover plate to the heater box. 4 Release the lock nuts then disconnect the upper, flap control rods from the actuator levers To facilitate.
re assembly retain the washers spring and nuts with. their respective control rods, 5 Unscrew approximately three turns the screws. securing each actuator to the heater box then push. 6 the special nylon inserts out of the locations in the. FIG C6 UPPER QUANTITY FLAP ACTUATOR, heater box and remove the actuators retain the two. felt washers, 1 Heater box, 2 Nylon insert, Upper flap actuators To fit 3 Quantity flap actuator. Fit the upper flap actuators by reversing the pro 5 Swivel pin. cedure described for their removal bearing in mind 6 Temperature flap actuator. that they should be set as follows 7 C t i rod, Workshop Manua Rolls Royce Silver Shadow Bentley T Series. Upper quantity flap To set 8 Check that the actuator will move from the open. see Fig C6 position to closed and back to open without stalling. If the actuator stalls when approaching the closed. 1 Secure the actuator to the heater box and, position the flap is set too tightly and should be moved.
connect the electrical wiring, slightly toward the open position. 2 Switch on the ignition and select the closed, position on the upper quantity flap control knob 9 Fit the upper flap actuator cover lo the heater. Allow the spindle to rotate to the closed position box then fit the two clips over the lower flange of the. box secure the cover with four screwy, 3 Fit and tighten the actuator lever onto the. spindle in the position shown in Figure C6, 4 Fit the control rod through the hole in the Upper temperature flap To set. swivel pin see Fig C7, 5 Pull the control rod forward so that the quantity I Secure the actuator to the heater box and.
flap is felt to reach its seating i e closed position connect the electrical wiring. refer to Figure C4 2 Switch on the ignition and select the hottest. 6 With the flap held firmly in its closed positioo position on the upper temperature flap control knob. tighten the nuts at either side of the swivel pin to Allow the spindle to rotate to the hot position. secure the control rod in position 3 Fit and tighten the actuator lever onto the spindle. 7 Select the three open positions in turn and check in the position shown in Figure C7. that the actuator lever stops at 45 90 and 180 from. 4 Fit the control rod through the hole in the, the closed position Ensure that the sealing is adequate. swivel pin, by switching on the blower motors with the flap in the. closed position and checking for air leaks 5 Pull the control rod forhard so that the tempera. ture flap is felt to reach its seating i e hot position. refer to Figure C4, 6 With the flap held firmly in its hot position. adjust the nut adjacent to the swivel pin so that the. control rod is holding the flap against its seat tighten. the lock nut, 7 Select in turn the lour 1101 positions on the. control knob and check that the lever stops at 45, 90 135 and 180.
8 Check that the actuator will move from the cold, position to the hot without stalling If the actuator. stalls when approaching the hot position the flap is. set too tightly and should bc moved slightly toward. the cold position, 9 Fit the upper flap actuator cover to the heater. box then fit the two clips over the lower flange of the. box secure the cover with four screws, Lower quantity flap actuator To remove. see Fig C8, FIG C7 UPPER TEMPERATURE FLAP ACTUATOR 1 Switch on the ignition. SElllNG 2 Push the lower quantity flap switch control to. Workshop Manual Rolls Royce Silver Shadow amp Bentley T Series Chapter C FIG C1 RAM AIR DUCTING 1 Flap valve 3 Control knob 5 Transfer tube 7 Duct 9 Worm drive clip 2 Cable adjuster 4 Clip 6 Cable 8 Undersheet 10 Intake duct 17 Remove the setscrews securing the circular pushed fully forward i e the closed position adjust

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