1928 Cadillac - GM Heritage Center

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72 ENGINE dicated with a dial indicator using the special fixture supplied for the purpose. (Tool Number 65530). No shims or liners are used under the main bearing caps and no attempt should be made to take up the bearings to compensate for wear. When worn enough to require it, the bearings should be replaced. Replacement bearings are furnished to exact size and do not require reaming or scraping. Special attention is required when removing or installing the rear main bearing cap because the sides of this cap must be oil tight. For this purpose, wood plugs are driven into grooves in the cap when it is installed. To remove the cap a special puller is necessary. New wood plugs must then be installed after the cap is put back. 5. Piston Clearance The piston clearance should be measured with feeler ribbons. A feeler ribbon .003-inch thick and J£ to V£-inch wide should be used on <strong>Cadillac</strong> 341-A and B and La Salle 328 engines. On La Salle 303 engines, a feeler ribbon .0025- inch thick preferably Ji-inch wide, should be used. The meaurement should be taken at the skirt of the piston and at right angles to the piston pin with the piston midway between the top and bottom of the cylinder bore. To measure accurately with feeler ribbons, consideration must be given to the pull required to withdraw the ribbon. The pull required for both the .0025-inch and the .003-inch ribbons should be between 2½ and 5 lbs. This test must be made with no oil on either the cylinder or piston. It-is also very essential that the piston be not more than .0005- inch out of round at the skirt. 6. Fitting Piston Pins in Bushings The recommended test for piston pin fit on engines with all three rings above the piston pin (first type on La Salle) is to hold the piston, and rod assembly by the piston in a horizontal position. The connecting rod should then just drop of its own weight. On engines with the oil ring below the piston pin, test by spinning the piston pin in the bushing perfectly dry. The pin should be free enough to spin but should have no perceptible looseness. Piston pin bushings should preferably be reamed in the special aligning and reaming fixture furnished for the purpose. 7. Fitting Piston Pins in Pistons The present practice in manufacture is to make one end of the piston pin a tight press fit in the side of the piston with the locking screw and the other end a hand press fit to allow for expansion. In service it is customary to fit both ends of the piston pin the same, which should allow a hand press fit. in other words, it should be just possible to push the pin into the piston by pressing with both thumbs on the end of the pin. CAUTION: When removing and installing the piston pins always place the locking screw side of the piston pin down so that the pressure on the pin will not force the piston out of round. 8. Valve Timing Because of the shape of the cams, the exact time of opening and closing of the valves depends upon the valve stem clearance and may vary as much as 10 degrees. The accompanying figures are actual readings taken on a cold engine.
C) ENGINE 73 By-pass adjusting screw Fig. 2 Sectional view of oil pressure regulator, first type, with adjusting screw Spring O p5/64 inch Adjusting screw Locking screw Clearance Inlet .004 inch Exhaust .006 inch when cold O Oil pump body Fig. 1 Sectional view of oil pump and distributor drive Fig. 5 Valve stem clearance adjustment Plate 39. Oil pump,pressure regulator and valves. I
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f CADILLAC MOTOR CAR COMPANY & I \
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I THE X E W (' A DILL A C 9 etaiL o
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THE NEW CADILLAC A SURPASSING POWER
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TIIK NEW CADILLAC KIGIDITY OF CHANK
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T1IK NEW CADILLAC DETAILS OF OOXHT1
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THE NEW CADILLAC DETAILS OK COXSTHC
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THE XKW CADILLAC arranged in an ind
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THE N li W (.UHLLAC e ull floating
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KKI'AII.S OK COXSTK (CTION PART CAD
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THK XKW CADILLAC ie long wheelba.se
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DETAILS III' COXSTUI'CTION Wider, d
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THE NEW CADILLAC out" under the rea
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THE NEW CADILLAC in. narrow rim wit
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Copyright 1*>2S bv adiliac Motor Ca
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CHAPTER V—Care of Tires 63 Inflat
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10 CADILLAC OPERATORS MANUAL OPERAT
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14 CADILLAC OPERATOR'S MANUAL OPERA
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30 CADILLAC OPERATOR'S MANUAL The T
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34 CADILLAC OPERATOR'S MANUAL Infla
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PART II LUBRICATION AND CARE
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50 CADILLAC OPERATOR'S MANUAL LUBRI
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54 CADILLAC OPERATOR'S MANUAL LUBRI
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LUBRICATION AND CARE 59 Wheels; 1,
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62 CADILLAC OPERATOR'S MANUAL Do no
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CHAPTER VI Storing Car IF THE car i
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GENERAL INFORMATION 71 CHAPTER I En
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74 CADILLAC OPERATOR'S MANUAL GENER
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GENERAL INFORMATION 79 Water Circul
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GENERAL INFORMATION 83 u .">o I*. T
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86 CADILLAC OPERATOR'S MANUAL it ca
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90 CADILLAC OPERATOR'S MANUAL the c
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94 CADILLAC OPERATOR'S MANUAL (Fig.
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Description CHAPTER VI Steering Gea
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102 CADILLAC OPERATOR'S MANUAL CHAP
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106 CADILLAC OPERATOR'S MANUAL GENE
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lid CADILLAC OPERATOR'S MANUAL GENE
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GENERAL INFORM ATION 115 Type of en
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118 CADILLAC OPERATOR'S MANUAL Solu
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CADILLAC Operator's Manual CADILLAC
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CHAPTER I Cadillac Service THE owne
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CADILLAC OPERATOR'S MANUAL best pos
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20 CADILLAC OPERATOR'S MANUAL Speed
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24 CADILLAC OPERATOR'S MANUAL EQUIP
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CADILLAC OPERATOR'S MANUAL EQUIPMEN
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V | HfScS OWNE -R'^ ADDR F-crc ENGH
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LUBRICATION 45 44 CADILLAC OPERATOR
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48 CADILLAC OPERATOR'S MANUAL Winte
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52 CADILLAC OPERATOR'S MANUAL GENER
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STORING CAR 57 CHAPTER VII Storing
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60 CADILLAC OPERATOR'S MANUAL porta
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.19?fl Shop Manual Cad'llac 3^1-.^3
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Foreword HPHIS Shop Manual is a boo
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4 CONTENTS Engine Specifications 63
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Front Axle Subject Cadillac 341 LaS
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FRONT AXLE 9 Punch 1/8-inch hole in
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FRONT AXLE 11 r~\ Front —A— f~\
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Rear Axle and Torsion Tube Subject
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REAR AXLE AND TORSION TUBE 15 Drive
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REAR AXLE AND TORSION TUBE 17 To di
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Note: Adjustment of connections,whe
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Note: Adjustment of connections, wh
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24 BRAKES Note: Unless brake connec
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Note: Adjustment of connections mus
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Note: Adjustment of connections mus
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Clutch Subject Cadillac 341 1-aSall
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CLUTCH 37 Rear driving plate Center
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CLUTCH 39 Rod to clutch pedal Ball
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42 COOLING SYSTEM Filler Assemble w
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44 COOLING SYSTEM 4. Flushing Cooli
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Electrical System Subject Cadillac
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ELECTRICAL SYSTEM 49 Subject Cadill
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ELECTRICAL SYSTEM 51 Subject Cadill
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ELECTRICAL 53 Fig.l Top view with h
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ELECTRICAL 55 Fig. 2 Electrolock fr
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CIRCUIT BREAKER INSTRUMENT PANEL LA
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CUT-OUT RELAY CIRCUIT BREAKERS LOCK
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A-T#JL-6-B-3CP8ULB B-5TOP-6-8-2ICP.
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Intake header shield (not used on L
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66 ENGINE To remove chain, remove c
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68 ENGINE Fig. 1 Numbering of conne
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70 ENGINE Use new wood plugs when r
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72 ENGINE dicated with a dial indic
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ENGINE 100-600 pounds press fit Pis
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76 FRAME Plate 41. Diagrams of Cadi
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78 GASOLINE SYSTEM Automatic thrott
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80 GASOLINE SYSTEM Fig. 1 Cadillac
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82 LIGHTING SYSTEM One-half of dist
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IS p l-h n •*» 0\ r ^- o rt- **
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Each "G" indicates a grease-gun con
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Springs Subject Cadillac 341 LaSall
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Subject Cadillac 341 Steering Gear
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STEERING GEAR 93 Clamp bolt Turn nu
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High and intermediate sliding coupl
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98 TRANSMISSION AND UNIVERSAL JOINT
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Sliding coupling with external teet
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2 re
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Shifter forks Shifter shaft and int
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Wheels, Rims and Tires Subject Cadi
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( i tJ^, a (.,(,1,11,1¼ BO.l •ft
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Contents DM 01 - 6 c P p^ NOTE: The
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Introduction 0Q*° ! Arrangements o
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Sf f\ £> ^ FRONT AXLE **J (¾ Subj
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10 FRONT AXLE Adjustable lever Knuc
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12 FRONT AXLE m^ e- -e- 1/32 inch I
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14 REAR AXLE AND TORSION TUBE 1. Lu
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Page 235 and 236: c c Subject FOOT BRAKES Front and R
Page 237 and 238: BRAKES 21 Subject Cadillac 341 LaSe
Page 239 and 240: BRAKES 23 Note: [links Unless brake
Page 241 and 242: BRAKES 25 Lever on rocker shaft Cen
Page 243 and 244: .^ ,., i—- m m Equalizer ba 5 Adj
Page 245 and 246: .""> Use upper hole for 14-inch fro
Page 247 and 248: BRAKES 31 Note: Unless brake connec
Page 249 and 250: BRAKES 33 Note: Unless brake connec
Page 251 and 252: 36 CLUTCH Subject Cadillac 341 LaSa
Page 253 and 254: 38 CLUTCH /Test by hand, not by foo
Page 255 and 256: Cooling System Subject Cadillac 341
Page 257 and 258: COOLING SYSTEM 43 Subject Cadillac
Page 259 and 260: COOLING SYSTEM 45 Fig. 2 Enlarged h
Page 261 and 262: 48 ELECTRICAL Fig. 1 Sectional view
Page 263 and 264: 50 ELECTRICAL Spring adjusting scre
Page 265 and 266: 52 ELECTRICAL SYSTEM 5. Adding Wate
Page 267 and 268: 54 ELECTRICAL Tool I0i Fig. 1 Testi
Page 269 and 270: Adjustment of starter switch. 1 Scr
Page 271 and 272: oo A-TML-64-3 CP BULB B-STOH-M-SIC*
Page 273 and 274: s A-Wi.-«-s-sc.PNx» B-noP-64-ncit
Page 275 and 276: Engine Subject Cadillac 341 LaSalle
Page 277 and 278: ENGINE 65 Subject Cadillac 341 LaSa
Page 279 and 280: ENGINE 67 Subject Cadillac 341 USal
Page 281 and 282: ENGINE 69 Subject Cadillac 341 USal
Page 283: c Subject INLET VALVES Clearance be
Page 287 and 288: Frame Subject Cadillac 341 LaSalle
Page 289 and 290: Gasoline System Subject Cadillac 34
Page 291 and 292: LaSalle inlet connection and strain
Page 293 and 294: Lighting System Subject Cadillac 34
Page 295 and 296: ( Lubrication Subject Cadillac 341
Page 297 and 298: \ rs ^ Rear shackles Brake shafts u
Page 299 and 300: \ ^N Each "G" indicates a grease-gu
Page 301 and 302: 90 SPRINGS AND SHOCK ABSORBERS -Bol
Page 303 and 304: 90B SPRINGS AND SHOCK ABSORBERS Sub
Page 305 and 306: 92 STEERING GEAR First-type screw.
Page 307 and 308: 94 STEERING GEAR Steering gear arm
Page 309 and 310: High and intermediate sliding coupl
Page 311 and 312: 98 TRANSMISSION AND UNIVERSAL JOINT
Page 313 and 314: 98-B TRANSMISSION AND UNIVERSAL JOI
Page 315 and 316: 8 H yo > z Cfl *•« Cfl Cfl e-i O
Page 317 and 318: pq Drum engaged B with cone and syn
Page 319 and 320: Shifter forks Shifter shaft igh and
Page 321 and 322: Wheels, Rims and Tires Subject Cadi
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1928 Cadillac - GM Heritage Center

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