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International Harvester Company BC-144 Series, Service Manual, Page: 19 / 96

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International Harvester Company BC-144 Series Service Manual Download Page 19

Summary of Contents for BC-144 Series

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Page 2: ...n INTERNATIONAL BD 144 BD 154Series DIESEL ENGINES and BC 144Series PETROL ENGINES SM 12A INTERNATIONAL HARVESTER COMPANYof GREAT BRITAIN LIMITED P O BOX25 259 CITY ROAD LONDON ECIP 1AD KBB 4 78 MeC ...

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Page 4: ... to the end of the appropriate group for the latest instructions before carrying out work on this equip ment INTERNATIONAL HARVESTERCOMPANY OF GREAT BRITAIN LIMITED PO BOX 25 259 CITY ROAD LONDON EC1P lAD GENERAL MANIFOLDS CYliNDER HEAD AND VALVES CONNECTING RODS PISTONS AND CYLINDER SLEEVES LUBRICATION SYSTEM COOLING SYSTEM TIMING GEAR TRAIN FRONT COVER AND CAMSHAFT CRANKSHAFT MAIN BEARINGS AND F...

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Page 6: ...INTERNATIONAL 8C 144 80 144 80 164 SERIES ENGINES GROUP 1 GENERAL ...

Page 7: ...ENT If detailed information on the fuel injection equipment and fuel lift pump is desired refer to the FUEL II INJECTION SERVICE MANUAL SM ll 1f ELECTRICAL u Full details of servlclng and adjust ing the electrical equipment will be found in the ELECTRICAL EQUIPMENT SERVICE MANUAL SM 14 1g ADJUSTMENTS Where adjustments are necessary the group will contain the relevant information Reference to that ...

Page 8: ...is detailed where relevant in the appropriate section of the group f CASTINGS Check castings for cracks and dis tortion g FUEL OIL AND COOLANT PIPES AND HOSES Check unions for leaks stripped threads or other faults Check pipes for cracks or chafing hoses for chafing twisting perishing or other damage 2 1 h LUBRICATION FITTINGS Check for damaged or missing fittings and replace Check that grease and...

Page 9: ...re no special torque data is specified the following torque should be used on all nuts and bolts providing that the threads are lubricated with engine oil or challis grease Bolt TYPE 2 TYPE 4 SIze Min Max MIn Max 1 4 9 10 12 14 5 16 19 21 27 30 3 8 33 37 45 50 7 16 53 60 75 85 1 2 80 90 115 130 9 16 115 130 165 185 5 8 160 180 220 250 3 4 290 320 400 450 7 8 420 470 650 730 1 630 710 970 1090 1 1 ...

Page 10: ...80 105 330 355 445 470 at 300 rev min 90 115 350 375 510 535 Firing order 1 3 4 2 1 3 4 2 1 3 4 2 ENGINESPEED rev min Full load governed BC 144 BD 144 BD 154 2000 Mechanical Governor DPA Injection Pump BC 144A 1750 10 2000 1875 BC 144H BD 144 BD 154D 2200 Pneumatic Governor DPA Injection Pump BC 144H 1800 2000 Propane LPG 2200 BD 144A BD 154H Pneumatic Governor DPA Injection Pump 1900 2200 BD 144 ...

Page 11: ...al Governor 2380 25 for Canadian Engine 2200 t 25 BD 144 DPA Injection Pump 19 25 25 BD 1441 DPA Injection Pump 2075 t 5 3D 144B DPA Injection Pump 1600 25 BD 144C BD 144F DPA Injection Pump 2200 t 25 BD 144 DPA 6000 ft Derated 1925 25 BD 144A DPA 6000 ft Derated U 5 25 flD 144C R BD 144F DPA nlH l1 tr Derate VIJ 25 Low idle H1 V rSlOns BD 144 All Versions 25 Mechanical Governor 5 11 _ 0 475 to 02...

Page 12: ...t clearance in 0 020 Hot Cold 0 020 Hot Cold 0 020 Hot Cold VALVEGUIDES Length inlet in 2 469 3 250 3 250 Length exhaust in 2 62 5 3 000 3 000 Inside diameter in 0 344 O 345 0 344 O 345 0 344 O 345 Set height of guide measured from Spring recess Cylinder head top deck Cylinder head top deck Height inlet in 0 828 O 940 0 030 O 940 0 030 Height exha ust in 0 984 O 940 0 030 O 940 0 030 VALVESPRINGS ...

Page 13: ...ECTING RODS Crankshaft bearing diameter in 1 8755 1 8760 1 8755 1 8760 1 8755 1 8760 Running clearance in 0 001 O 0029 O 001 O 0029 O 001 O 0029 Side clearance in 0 003 0 010 0 003 0 010 0 003 0 010 Piston pin bush ID in 1 1028 1 1031 1 1028 1 1031 1 1028 1 1031 PISTON PINS Diameter in Standard 1 1021 1 1023 1 1021 1 1023 1 1021 1 1024 Oversize marked 5 1 1071 1 1073 1 1071 1 1073 1 1071 1 1074 Cl...

Page 14: ...ed Chrome Second Taper face Plain Internally stepped Third Taper face Plain Internally stepped Width of all rings in 0 0930 0 0935 O 0930 0 0935 0 0927 0 0937 Ring gap All rings in 0 012 O 018 0 012 0 018 0 015 0 019 PISTONRINGS Oil control Number of rings per piston 1 2 2 Type BD 144 BD l44B Top Slotted Slotted Slotted Bottom Not applicable Slotted Slotted Type BD 144A 144F 144C Top Multi piece B...

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Page 16: ...5 0 0045 TlMING GEARS Backlash between any pair of gears in O 0025 0 0045 0 0025 00045 O 0025 0 0045 Idler gear end clearance in 0 005 0 010 0 005 0 010 0 005 0 010 Idler gear to shaft clearance in O 0015 0 0028 0 0015 0 0028 0 0015 0 0028 Idler gear lD in 3 0005 3 0013 3 0005 3 0013 3 0005 3 0013 TORQUELOADINGS Idler gear shaft bolt lb ft 75 Min 75 Min 75 Min Camshaft thrust plate bolts lb ft 35 ...

Page 17: ...RNOR SPRING Test length in 3 810 3 810 3 810 Test load lb 20 7 20 7 20 7 Min length in use in 2 44 to 2 50 2 44 to 2 50 2 44 to 2 50 Max length in use in 4 047 4 047 4 047 9 CARBURETTOR Type Downdraught Downdraught Downdraught Make Zenith 30VNN Solex Zenith 30VNN Adjustments Idle and speed Idle and speed Fuel level in 7 8 below top of float 7 8 below top of float chamber chamber Venturi size rnrn ...

Page 18: ...F VALVEGUIDES AND SPRINGSUSED ON BC 144A ENGINESWHEN EQUIPPEDWITH DUAL VALVESPRINGS early models VALVEGUIDES Length in 2 625 Inside diameter in 0 344 to 0 345 Set height of guide measured up from spring recess I in 1 047 VALVESPRINGS INLET EXHAUST INNER OUTER INNER OUTER Test length ill 1 258 1 475 1 299 1 516 Test load lb 2 1 50 0 58 5 0 22 5 50 0 56 5 5 Free length in 2 125 2 550 2 125 2 550 ...

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Page 20: ...INTERNATIONAL BC 144 BO 144 BO 164 SERIES ENGINES GROUP 2 MANIFOLDS CYLINDER HEAD AND VALVES ...

Page 21: ...arts of the valve head are subject ed to equal combustion temperatures Exhaust valve seat inserts of special ly hardened material are fitted to BC 144 series engines 2 MANIFOLDS 2a REMOVAL 1 DIESEL ENGINES INLET MANIFOLD a Remove the c r a n k c a s e breather pipe I I b Disconnect the feed pump to filter fuel pipe 2 1 from the filter c Disconnect the filter to injection pump fuel pipe 3 1 from th...

Page 22: ...f Fig l Fig 3 2 2 Fig 2 Fig 4 ...

Page 23: ...5 8 c Assemble the levers 7 8 spring 8 8 and spacer 9 8 to the shaft d Proceed as detailed in ops a t T68 19 Fig 5 BC 144 VALVE LEVER ASSEMBLY to c for he other valve lever shaft then assemble both sha fts to the centre bracket m a In t a Int ng inward pressure until the valve lever assem bly is installed on the cylinder head NOTE The valve lever adjusting screws on the BC 144 series engines are o...

Page 24: ...er to the tightening sequence Fig 7 d Remove the cylinder head and gasket 4 2 j TS6 24A Fig 7 PETROL ENGINE CYLINDER HEAD BOLT TIGHTENING SEQUENCE 4b DISMANTLING 1 DIESEL ENGINES a Remove the glow plug wires 1 9 b Remove the glow plugs 2 9 c Remove the injector spill pipes 3 9 from each injector d Remove the injector body sec uring nuts 4 9 and withdraw the injectors from the e y l ind e r head e ...

Page 25: ...6 2 S 19 Fig 8 Fig 9 Fig 1 0 ...

Page 26: ...ball bearing On applying pressure to the ram the rotator if serviceable will be seen to move k Check the outside face and the ribs inside the collets for wear 8 2 1 If the valve guides were removed press in new guides to the dimensions given in specifications Ream the valve g u id e s to the dimensions given in specifications m If the exhaust valve seat inserts were removed take a fine cut if nece...

Page 27: ...E 15 SMAU ERTHAN ANGLE OF VALVE SEAT NARROWS SEAT VALVE FACE t DW CONTACTS TI SEAT Fig 12 REFACING THE VALVE SEAT ES 86 Fig 13 t 9 t 25 g 12 475 0 62 f 11 09 Oz UNDERCLJr a 1 St ___i lJ L 7 16 UNC 3A THREAD TS6 LS Fig 14 THE GUIDE STUD ...

Page 28: ...Apply a light coating of clean engine oil to the cylinder head mating face and install a new gasket 8 2 b Screw two guide studs manufactured to the dimensions shown in Fig 14 into the cylinder block to hold the gasket in place and ensure the correct alignment of the cylinder head c Install the cylinder head d Dismantle the valve lever shaft ass e m b 1Y a s d eta il e din p a r a 3 b op a then ins...

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Page 30: ...INTERNATIONAL IC 144 10 144 10 164 SERIES ENGINES GROUP 3 CONNECTING RODS PISTONS AND CYLINDER SLEEVES ...

Page 31: ...1 3 Fig 1 Fig 3 Fig 2 Fig 4 ...

Page 32: ...with its lowe r half of the bearing insert e Push each pis on and connecting rod up and out of the Ileeve then remove the upper half of the bear mg insert 2 3 NOTE If the cylinder sleeve hal been worn 10 that there is a ridge in the Ileeve at the upper end of the pilton travel this must be removed before the pilton is withdrawn to prevent damage to the ring landl and r ing s during rem oval of the...

Page 33: ...semble the inserts to the connecting rods and caps 2 Lay a length of 0 005 inch thick virgin lead wire across the bearing cap insert 3 Install the connecti ng rods on the crankshaft and tighten the bolts to the correct torque 4 Re m o v e the bearing cap and measure the thickness of the lead wire to determine the bearing clearance 1 Remove the connecting rods from the c ran k shaft 2d ASSEMBLY a H...

Page 34: ...4 3 Fig 7 Fig 6 Fig 8 ...

Page 35: ... sleeve puller withdraw the cylinder sleeves c Remove the sealing ring from the groove in the crankcase bore 3b INSPECTIONAND REPAIR a With the sleeves in the crankcase moeasur e the b 0res at the top and the bottom at 900 to the crankshaft to de t e rm Ine the amount of taper b Measure the bores at the top and the bo t t om in line with the crankshaft to determine the amount of taper c Compare th...

Page 36: ...ange third gear with no load at 3 4 throttle PERIOD 2 3 4 HOUR Operate the tractor on Li g h t work 8 3 at 3 4 throttle PERIOD 3 2 HOURS Operate the tractor on medium work at full throttle 3 DIESEL POWER UN IT PERIOD 1 1 HOUR Operate the engine on 1 4 load at 3 4 rated speed PERIOD 2 2 HOU RS Operate the engine on 1 2 load at 3 4 rated speed PERIOD 3 1 HOUR Operate the engine on 3 4 load at full r...

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Page 38: ...INTERNATIONAL BC 144 BO 144 BO 164 SERIES ENGINES GROUP 4 LUBRICATION SYSTEM ...

Page 39: ...hen No 4 piston is at T D C on the com pression stroke due to the flange for the distributor drive having to pass the teeth of the oil pump drive gear on the camshaft The distributor drive flange has a sector 4 2 cut away to allow it to pass the gear ze DISMANTLING a FIXED SCREEN Remove the two bolts 2 3 which secure the oil pump screen 1 3 to the pump body cover 3 3 and re move the screen FLOATIN...

Page 40: ...Fig 1 Fig 3 2 4 Fig 2 Fig 4 ...

Page 41: ...t and re check the clearance j Check the clearance between the oil pump drive pinion and the body after the pump is assembled Fig 7 2d ASSEMBLY a EARL Y ENGIN ES Insert a key into the drive shaft then press on the body gear until the retainer groove is exposed Spring the gear retainer into the groove and press the gear back down the shaft until it is hard against the retainer then install the driv...

Page 42: ...Fig 5 f Fig 7 f 4 4 Fig 6 ...

Page 43: ...8 and centre bolt collar IS 8 off the centre bolt d Remove the head seal 24 8 from the filter head e Remove the circlip 28 8 then remove the top element guide 29 8 and gasket 30 8 from the filter head u f Unscrew the relief valve seat 2S 8 from inside the filter head then r e rn o v e the ball 26 8 and spring 27 8 NOTE 0 n I ate r t y p e P ur 01 a tor f i I t e r s items 2S 26 27 8 are not servic...

Page 44: ... circlip 10 Element 11 Head seal 12 Head 13 PUROLATOR Filter 14 Centre bolt 15 Centre bolt collar 16 Sealing washer 17 Bowl 18 Spring 19 Plain washer 20 Centre spindle seal 2 Element guide bottom 22 Circlip 23 Element 24 Head seal 25 Relief valve seat 26 Relief valve ball 27 Relief valve spring 28 Cisclip 29 Element guide top 30 Gasket 31 Hellli Fig 8 EXPLODED VIEW OF OIL FILTERS 32 A C DELCO Filt...

Page 45: ...ttom element guide to it then secure with the c ir c l t p f Place a new element over the centre bolt into the bowl g Insert the centre bolt into the filter head then tighten the bolt ensuring that the bowl seats evenly on the head seal 3 AC DELCO FILTER a Install the relief valve ball and spring in the filter head then tighten the relief valve plug b Install a new seal in the filter head c Instal...

Page 46: ...INTERNATIONAL BC 144 BO 144 BO 164 SERIES ENGINES GROUP 5 COOLING SYSTEM ...

Page 47: ...cking or oil contamination 2c INSTALLATION a Install the fan belt as detailed in the relevant Operator s Manual 3 FAN 3a REMOVAL a Remove the four bolts securing the fan to the p u l l e y hub and remove the fan 3b INSPECTION AND REPAIR u a Inspect the fan for cracks or bent blades b Carefully straighten any bent blades 3c INSTALLATION a Reverse the removal procedure 4 WATERPUMP 4a REMOVAL a Remov...

Page 48: ...Fig 1 Fig 3 TAP 1f2 UNC THREAP T48 63 Fig 2 Fig 4 2 6 ...

Page 49: ...H WITH BASE 01 _TER PUMPBOCN 51 Fig 5 4e INSTALLATION a Reverse the removal procedure using a new gask t and tighte r the nuts to the correct torque 5 THERMOSTATHOUSING Sa REMOVAL a Remove the thermostat housing as detailed in GROUP 2 para 4a 1 ops d and e 5b DISMANTLING a Remove the three bolts 1 6 and lockwashers then remove the thermo stat housing cover 2 6 b Lift out the thermostat 1 7 5c INSP...

Page 50: ...Fig 6 Fig 7 4 6 ...

Page 51: ...racking b Inspect the bracket for straight ness and cracks c Inspect the spindle and pulley for wear 6d ASSEMBLY a Press the bearings into the pull e y until they are hard against the shoulder in the bore b Slide the pulley onto the spindle ens uri n g t hat the c astie tt e r P faces away from the bracket and secure with the circlip 6e INSTALLATION a Reverse the removal procedure and adjust the p...

Page 52: ...INTERNATIONAL BC 144 BO 144 r BO 164 SERIES ENGINES GROUP 6 TIMING GEAR TRAIN FRONT COVER AND CAMSHAFT ...

Page 53: ...crankcase breather pipe 3 1 if fitted f Remove the nuts and bolts 4 1 securing the injection pump gear cover 5 1 then remove the cover g Remove the two bolts 1 1 from the front of the crankcase oil pan h Remove the bolts 6 1 securing the front cover then remove the cover and gasket NOTE Check the backlash between the gears to specifications if necessary 2b DISMANTLING a Press out the oil seal if i...

Page 54: ...f I CD EB 92 Fig 1 2 8 Fig 2 Fig 3 Fig 4 ...

Page 55: ...ee bolts and tighten to the correct torque e Install the front cover as detailed in para 2d 2 PETROL ENGINES a Proceed as det aLl e d in para 3c 1 ops a to c b Assemble the governor gear to the governor shaft then tighten the jam nut to the specified torque c Install the front cover as detailed in para 2d 4 CAMSHAFT 48 REMOVAL a Remove the valve lever shaft assembly as detailed in GROUP 2 para 3a ...

Page 56: ...RENT NOTE On early engines the camshaft gear is pressed up to the thrust plate and there is no clearance between the thrust plate and abutment shoulder Fig 6 4 8 4 1 Camshaft 2 Thrust plate 3 Key 4 Gear 3 Fig 6 CAMSHAFT EARL Y TYPE 4e INSTALLATION a Install the valve tappets in their or iginal posit ions b Coat the camshaft and camshaft bearings with clean engine oil c Install the camshaft in the ...

Page 57: ... the front and rear bearings into position ensuring that the edge marked FRONT is to the front of the crankcase and that the holes in the bearings line up with those in the crankcase NOTE Ensure that the rear bearing is pressed in flush with the front of the bore in the crankcase c Line ream the bearings to the dimensions in specifications d After reaming blowout the crankcase and oilways to remov...

Page 58: ... Fig 7 EB 103 6 6 ...

Page 59: ... ...

Page 60: ...INTERNATIONAL BC 144 BO 144 B0 1 4 SERIES ENGINES GROUP 7 CRANKSHAFT MAIN BEARINGS AND FLYWHEEL ...

Page 61: ...t necessary replace the flywheel ring gear as follows 1 Remove the ring gear by heat ing with a torch or splitting with a chisel and driving off 2 Heat a new ring gear to 500 5500F and install it ensuring that it is hard against the shoulder on the flywheel The ring gear must be installed with the lead on the teeth toward the crankcase on diesel engines 1 1 and away from the crankcase on petrol en...

Page 62: ...Fig 1 Fig 3 EB 100 2 7 Fig 2 Fig 4 ...

Page 63: ...te the bearings then tighten the four front b e a r In g caps to the specified torque i Hold the crankshaft toward the FRONT of the crankcase so that the crankshaft thrust face is tight against the rear of the rear main bearing j Tap the rear main bearing cap toward the REAR of the crankcase so that the rear thrust face is tight against the crankshaft thrust face k Tighten the rear main bearing ca...

Page 64: ... wear or damage replace if necessary pressing into the dimension shown in Fig 7 c Install a new key and the crank shaft pinion if they were removed c Check the clutch shaft pilot bearing for wear or damage replace if ne c e ss a r y pre ssin gin tot he d t m e n sio n shown in Fig 7 d Press a new oil seal into the r e a r oil seal retainer with the lip t o wa r d the front of the crankcase The sea...

Page 65: ...6 7 Fig 7 PRESS DOWEL i TO THIS DIMENSION TA37 51 Fig 6 Fig 8 ...

Page 66: ...f the gasket tighten the bolts by stages to the specified torque NOTE The bottom face of the retainer after installation must be in line with the bottom face of the crankcase with in 0 020 inch i Trim the horseshoe gasket flush with the bottom of the crankcase 6 7 j Install the flywheel as detailed in para 2c k Install the oil pump as detailed in GROUP 4 para 2e I Invett the engine m Install the c...

Page 67: ... I I I _ _ I __________ 1 ...

Page 68: ...INTERNATIONAL BC 144 SERIES ENGINE GROUP 8 GOVERNOR BC 144 Engine ...

Page 69: ...ring and closing the c a r b u r e t t or throttle to reduce engine speed 2 GOVERNOR 2a REMOVAL a Disconnect the governor and throttle control rods at the governor b Remove the crankcase front cover as detailed in GROUP 6 c Remove the nu t 1 2 then pull the governor drive gear 2 2 off the shaft U d Remove the bolts 3 2 securing the governor and remove the governor 2b DISMANTLING a Break the seal w...

Page 70: ...2 8 Fig l o EB 104 Fig 2 ...

Page 71: ...and core plug as shown in Fig 5 and ream the bush to specifications A good grade sealer must be used when instailling the core plug and its bore must be clean and true d Examine the thrust washer and bearing for excessive wear e Examine the rockshaft lever thrust pins for excessive wear replace if inspection proves it necessary f The governor weights should not require replacement but if this has ...

Page 72: ...4 8 BUSHN 10 BEPRESSED FWSH WITH THIS FACE Fig 4 Fig 5 Fig 6 ...

Page 73: ...e Use a tachometer or Strobotorch and adjust the stop until the speci fied rev min reading is obtained b Run the engine until it is at its correct operating temperature f When the specified reading is obtained lock the stop screw then install the governor cover and gasket c Set the governor control lever in the fully open position ...

Page 74: ...INTERNATIONAL BC 144 SERIES ENGINE GROUP 9 CARBURETTOR BC 144 Engine ...

Page 75: ...gs 4 6 4 which act as a ir b l e e d s to the slow running jet and capacity well respect ively 1c COLD STARTING Pulling out the strangler control choke operates the cam lever at the side of the c a r b u r e t t o r and allows the spring loaded strangler flap to close At the same time the interconnection rod between the cam lever and throttle spindle automatically cracks open the throttle sufficie...

Page 76: ...Fig 1 Fig 3 2 9 Fig 2 T Fig 4 ...

Page 77: ...the compensating jet screws is ventilated to atmosphere by means of the main air bleed while the fuel and air fl ow from the compensating jet is through the restriction near the base of the drilling in which the compen sating jet screws Thus when fuel above the compensating jet is exhausted on acceleration an ern u l sion of fuel and air will be drawn into the main channel of the emulsion block th...

Page 78: ...also alter the fuel level 11 NEEDLEVALVES AND SEATINGS These are calibrated in millimetres the size being stamped on one of the flats of the hexagon 4 9 1m ACCELERATING PUMP 30VNP ONLY The purpose of this is to prevent any hesitation in accelerating that might otherwise occur when a c ar b u r ettor is adjusted to provide the leanest mixture at part throttle cruising To obtain economical running a...

Page 79: ...5 9 Fig 5 Fig 7 Fig G EB 6 Fig 8 ...

Page 80: ... as detailed in para 3b l ops a to h b Hold the piston in position against the spring pressure then remove the piston retaining screw 4 5 8 9 c Remove the piston 1 5 and return spring 2 5 d Remove the check valve from the bottom of the pump well e Remove the pump discharge valve 5 5 f Remove the pump jet 3 5 g Remove the pump pivot screw 3 1 and withdraw the piston rod 3c INSPECTION AND REPAIR a I...

Page 81: ...o screws 8 2 then remove the throttle 6 2 from the spindle e Withdraw the spindle 7 7 from the body 5b INSTALLATION a Insert the spindle 3 8 into the body b Place the thruttle 1 8 in position through the slot in the spindle When assembling the throttle the spindle should be posi tioned with the larger cut out toward the volume control screw 4 8 and the throttle inserted with the inden tations 2 8 ...

Page 82: ...8 9 Fig 9 ...

Page 83: ...each normal operating temperature then close the throttle b Adj ust the throttle stop screw to give a slight increase in slow running speed c Adj us t the vol ume control screw 5 9 to give the smoothest slow running with the fastest speed dO Adj ust the throttle stop screw to give the specified slow running speed low idle 7c GOVERNOR TO THROTTLE CONTROL ROD a Set the throttle stop screw 2 9 four f...

Page 84: ...INTERNATIONAL Be 144 BO 144 BO 154 SERIES ENGINES GROUP 10 If L P G ATTACHMENT BC 144 Engine Issued 5 69 ...

Page 85: ...es the need to close the main fuel valve at the storage cylinder when ever the engine is stopped Issued 5 69 c VAPOURIScR REGULATOR Fuel flows as a liquid under pressure from the filter and lock off valve into the first stage of the vapouri ser regulator where the pressur is released and the temperature r i se s to the existing atmospheric temperature At this stage the liquid is beginning to v a p...

Page 86: ...69 S p a n ssj u l UI 1 OL Z ...

Page 87: ...ressed air d Examine the valve pad 7a l If damaged change the assembly Issued 5 69 2d ASSEMBLY Reverse the dismantling procedure after ensuring that all items are perfectly clean 2e INSTALLATION Reverse the removal procedure Ensure that fuel flow through the unit is in the direction indicated by the arrow 3 VAPOURISERREGULATOR sa REMOVAL a Close the fuel shut off valve at the storage cylinder b Ex...

Page 88: ...4 10 f Issued 5 69 TA70 184 Fig 2 Fig 4 ...

Page 89: ...er washer 4 6 from the diaphragm stud Issued 5 69 3 VAPOURISER a Wind the spring 1 8 over the head of the adjusting button 2 8 b Slacken the grub screw on the adjusting button spindle and lift off the button 2 8 c Remove the nut 3 8 and socket headed screw 4 8 d Lift off the clamping ring 5 8 cover 6 8 and sealing diaphragm 1 9 to expose the heat chamber e The secondary vapouriser pipe 2 9 must be...

Page 90: ...Fig 5 TA70 1Sg Fig 6 Issued 5 69 6 10 U 11 Fig 7 TA1o 190 Fig 8 ...

Page 91: ...5 2 and cover 4 2 can only be fitted in one position due to the uneven spacing of the loc ating dowels Issued 5 69 3e INSTALLATION u Reverse the removal procedure and SLOWLY TURN ON THE FUEL SUPPLY 3f ADJUSTMENTS 1 VAPOURISER REGULATOR This unit should be tested and adjusted using compressed air at 2 a pressure of not less than 40 lb in as the operating medium If a com pressed air supply is not av...

Page 92: ...0 f i 11 Fig 9 8 10 Fig IO Issued 5 69 Fig ll ...

Page 93: ...hole in the govenor plate 7 13 in which the peg on the low idle stop plate 8 13 engages then w Lt hd r aw Ln g the spindle from the body complete with the nut at the opposite end of the spindle Issued 5 69 4c INSPECTION AND REPAIR u a Inspect the jet for wear b Check the throttle spindle for slackness in the body c Check the mounting flange for distortion either by placing a steel rule across its ...

Page 94: ...Issued 5 69 10 10 Fig 12 Fig 13 ...

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