Land Rover 90 110 Workshop Rover Manual
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Page 222
PETROL FUEL SYSTEM Adjust throttle linkage Fast idle adjustment 20. On the left-hand carburetter, place a 0,15 mm (0.006 in) feeler between the underside of the roller on the countershaft lever and the throttle lever. 21. Apply pressurc to the throttle lever to hold the feeler. 22. Tighten the screw to secure the throttle adjusting lever, then withdraw the feelcr. 20 26. The fast idle adjustment is pre-set on the left-hand carburetter and should not normally require...
Page 223
PETROL FUEL SYSTEM 1191 6 ;: CARBURETTER OVERHAUL - S.U. HIF 44 - 5 ;.’‘ Right hand DISMANTLE 1. Remove the carburetters from the engine and clean the exteriors with a suitable solvent. 2. Remove the two nuts and spring washers and withdraw the air intake adaptor and joint washer. 3. Unscrew and remove the piston damper assembly and drain the oil. 4. Remove the three screws and lift -off the suction chamber complete with piston and spring. 5. Remove the spring...
Page 224
PETROL FUEL SYSTEM 42. Fit the starter assembly to the carburetter body and secure with the two screws. 43. Fit the end seal and cover. 44. Fit the return spring. 45. Fit the cam lever and tension the spring. Fit a new lock washer and secure with the nut and bend the tabs over a convenient flat. 46. Adjust the coils of the spring, if necessary, to prevent coil binding. CT?374M 45 KEY TO S.U. CARHURETTER COMPONENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11....
Page 226
El PETROL FUEL SYSTEM Fit throttle lever assembly 47. Fit the return spring so that the longest leg rests against the throttle adjusting screw housing. 48. Fit the throttle adjusting lever and lost motion assembly and tension the return spring. 49. Fit the throttle actuating lever. 50. Fit the bush washer and lock washer. 51. Fit and tighten the special nut and bend the lock tabs over a convcnient flat. Fit jet and float assembly 52. Fit the jet bearing, long end...
Page 227
PETROL FUEL SYSTEM ._ I .. e.;;.!!,{: 59. Assemble the jet to the bi-metal jet lever and ensure that the jet head moves freely in the cut-out. 60. Fit the jet and bi-metal jet lever to the carburetter and secure with the spring loaded jet retaining screw. (. :. z: , . , . . .. , , . .. Fit piston and suction chamber 64. Fit the needle, spring and guide assembly to the piston ensuring that the etched arrow head on the needle locating guide is aligned between the...
Page 228
PETROL FUEL SYSTEM 72 ST1880M 73. Connect the linkages and top-up the carburetter dampers with a recommended oil to the top of the hollow piston rod. 74. Tune and adjust the carburetters. ST1914M / TUNE AND ADJUST - SU HIF 44 CARBURETTERS Special tools: Carburetter balancer 605330 or B89 Non-dispersive infra-red exhaust gas anaiyscr General Requirements Prior to Tuning Carburetters. Accurate engine speed is essential during carburetter tuning, therefore the distributor...
Page 229
PETROL FUEL SYSTEM TUNE AND ADdUST The following instructions apply to both carburetters unless otherwise stated. Before commencing the following instructions, remove the air cleaner, air intake elbows, mixture adjustment screw plug and mixture screw cap. CARDURETTERBALANCE Using balancer 605330 1. Disconnect the interconnecting link between the two carburetters. Fit the balancer to the carburetter intakes and ensure that there are no air leaks, if necessary, zero the...
Page 230
PETROL FUEL SYSTEM 7. Without altering the position of the balancer control, place the balancer on the second carburetter intake ahd adjust the idle screw as necessary to achicve the same reading. . 8. Alternatively, adjust and check the balance of both carburetters until an idle speed of 700 to 800 rev/min is obtained. 9. Reconnect the throttle inter-connecting link, and again check the idle spced and balance. Mixture setting 10. Ensure that the engine is still...