STUDEBAKER-PACKARD CORPORATION

SEPTEMBER 1 9 5 7 NO. 328

SOUTH BEND 27, INDIANA

ENGINE OIL LOSS AT ROCKER ARM COVERS - 1957 STUDEBAKER AND PAGE PACKARD V-8 ENGINES STUDEBAKER AND PACKARD CLIPPER Piease record this article on the Service Btdleti.n Reference page of your 1957 Studebaker ENGINE Oil LOSS AT ROCKER ARM COVERS • and Packard suppiements. SUPERCHARGED ENGINES •••.•, . 1 REAR CLUTCH FRICTION DISCS • FLIGHTOMATIC, 2 SERVICE SUGGESTIONS FOR FLIGHTOMATIC . , 2 sustained high engine speed operation of THROTTLE LINKAGE ADJUSTMENT PROCEDURE • supercharged engines may cause the rocker arm FLIGHTOMATIC ••••., . , •••, . 3 cover retaining nuts to loosen and result in a VIBRATION • 1957 STUDEBAKER PRESIDENT AND 1 rapid loss of- oil. 1957 PACKARD CLIPPER SEDAN ••••••• Internal star-type lock washers, Part No. ·STUDEBAKER G-138538, are now released for production CAMSHAFT THRUST PLATE • 185 cu. IN. ENGINE. 4 Studebaker and Packard supercharged engines to IGNITION AND STARTING SWITCH • 1955• 57 prevent the cover retaining nuts from backing CARS AND TRUCKS • . • • • • • 5 of!. PAINT FORMULAS • SCOTSMAN MODELS • , _. 5

The lock washers can be installed on engines PACKARD CLIPPER in service. Where new cover gaskets and rubber SERVICING THE PACKARD ANTENNA • 1955, stud seals are used, the rocker arm cover and 1956 AND 1957 MODELS, , • , , • • • 5 nuts should be installed and tightened to com­ STOP LIGHT SWITCH • 1955 AND 1956 PACKARD press the gasket and seal. The nuts should AND CLIPPER MQDELS WITH TORSION LEVEL SUSPENSION, ••••• , ••••• , , • 5 then be removed and there will be sufficient threads exposed on the studs so that the lock TRUCKS washers, Part No, G-138538, can be installed under the nut. The nut should be tightened to POWER STEERING • 3E SERIES •••••, , • 6 20 inch pounds.

When the disturbance is not too objection­ VIBRATION - 1957 PACKARD CLIPPER able, a satisfactory result may be obtained by SEDAN AND 1957 STUDEBAKER remo�ing the U·bolt and saddle assemblies on PRESIDENT MODELS both sides of the flywheel housing from their PLease record this articie on the Service supportO brackets. Turn the U·bolts and saddles 1 8 , I 11 Bulletin Reference page of your 1957 Studebaker o s o th .e r o u n dpa r t o f t he u -b o t w i and Pac kani supp Lemen ts. clear the flywheel housing brackets and assem­ ble them as clamps only to the exhaust pipes In some of the 1957 Packard Clipper Sedan where the pipes telescope. and 1957 Studebaker President models, a vibra• If this does not produce a satisfactory re­ tion is somethies noticeable on acceleration at duction of the noise, then the following may be 14 to 15 11.p.h. and again in the 28 to 32 m.p.h. applied: range. A slight up-grade pull during the speeds mentioned will accentuate the noise con­ From the front or forward plate of the dition. mufflers, measure forward 16 inches and scribe

G O O D SERVICE C R E A T E S CUSTOMER G O O D W I L L Ho. 328 S E R V I C E BULLETIN Septe■ber

Fig. 1

ALIGNMENT /HARK tlh'SERTPAI/T A(, 1545415 EXTENSION FOR WELDING a mark, measure to 20 inches and scribe anothe� When present stock or Rear Clutch Friction mark. scribe a straight line lengthwise on the Disc, Part No. 1541201 is exhausted, the Parts front exhaust pipe to pass through the vertical Depots will substitute Rear clutch Friction marks at 16 and 20 inches. This will insure Disc, Part No. 1543088. proper alignment for welding. The layout and markings as previously described should be Part No. 1541201. is used on all 1956 Models applied alike to both right and Je!t front ex­ and 1957 champ ion, Commander and President haust pipes. see Fig. 1. models.

Remove the outlet pipes from both mufflers, Part No. 1543088, is used on 1957 Golden remove both mufflers and front exhaust pipes, Hawk and 1957 Packard Clipper Models. leave outlet tubes in place on the rear supports. To insure proper service, it is important that the friction discs be replaced in a com­ cut the four inch section out or each front plete set rather than individually. exhaust pipe at the 16 and 20 inches forward of mufflers as previously marked, butt the ends of the exhaust pipes together in line with the SERVICE SUGGESTIONS FOR THE lengthwise mark, to insure alignment, and weld FLIGHTOMATIC TRANSMISSION the front and rear sections together. ?:e:::se record this article on the Service 3,_; :e :.�i:. ?eference page at the end of the Install the two new Muffler outlet Tube Ex­ :-;�s��ssion-flight011tatic Section of your 1956 tensions, Part No, 1545415 in each �uffler re�: _-:,_::;1 ::::�er Passenger Car Shop Manual and outlet. Install the mufflers, front ex�aus: :-:::�s��ssion-Warner Gear Section of your 2K pipes and rear outlet pipes in place. .-e-�es �r•.,:cli Shop f,fanwL

Install the forward U-bolts and sa:::es, ,, : . so:.e of the control pressure transfer previously described (not attached t� :�e �:y­ : � ·: e s are no, being made or alu IIin um. The wheel hodsing brackets). Install :�e �-�:::s i:��i�ut tubes can be damaged rather easily if and saddles at the front and rea: :� ::" :��y are not handled carefully. Care should be mufflers; also attach the rear s•;;::-::ts, ,·: :·. :a��� wten removing or replacing the tubes so are now rearward four inches, Cirec::y :: ::e :�a: :�ey are not !:lent, distorted or ruptured outlet pipes. Two new U-bolts a�� sa��:�s a:e �; :�e use of a sharp screw driver, ha�mer or used to secure the outlet tu�e ex:e:s:::s a: ::.-.!: :cols. rear o! the mufflers. If necessary to remove only the trans­ The parts required are as �::::,s: r:ss::� extension housing or output.shaft, we 2 - 1545415 out:e: - ·· :::�:�:s'.:�s s�ii!St that the rear band be tight�ned su!fi­ 2 - 521273 ::��::r to lock the rear drum in position. :::s •111 minimize the possibility or dropping i�f =� tbe thrust washers out or position in REAR CLUTCH FRICTI:� :;�: FLIGHTOMATIC TRANSvlSS :� :�e !ai� shaft assembly. Please record this :::-::: > :-. :'.,: _·,-·. '.:c s. I! a front or rear clutch failure is en­ Bunetin Reference page:::::'..;: ,--.: :_" :'..: _- - ._ ==��tered, the clutch lining particles are mission-Flightomatic se::-:,::-. :_": :·.- .. :: :: ·-.:, =�:eedingly hard to wash out or the trans­ baker-Passenger Car 31;.:;� .• :::-.,_::; . . z:ssion. If all or the particles are not

2 September S E R V I C E BULLETIN No. 328 cleaned out thoroughly, sticking valves are usually the result. Therefore, we stress the importance of disassembling and thoroughly cleaning the transmission. including -

(a) Both of the clutch operating pistons and cylinders (b) All of the passages in the shafts (C) Disassembling and carefully cleaning both front and rear band operating servos (d) Draining the oil from the converter as well as the transmission and discarding it.

All of the remaining part� including the control valve assembly, pressure regulator assembly and governor should be also thoroughly cleaned. THROTTLE LINKAGE ADJUSTMENT PROCEDURE - FLIGHTOMATIC TRANSMISSION PLease record this articLe on the Service BuLLet�n Reference page at the end of the Transmission-fLight0111atic section of you r 1956 Studebaker Passenger Car Shop Ma nual. Fig. 2 1. Accelerator bracket 3. Main bellcrank In a great number of cases unsatisfactory 2. Auxiliary bellcrank 4. Adjusting screw Flightomatic transmission operation can be traced to improperly adjusted throttle linkage. ing the carburetor idle speed adjusting screw. In some instances transmissions have been found to have the throttle linkage adjusted to pro­ Disconnect the rod which connects the main vide insufficient control pressure which allows bellcrank (3) to the auxiliary bellcrank (2) by slippage and early failure of bands a_nd clutches. removing the ball joint stud from the ■ain In other instances. transmissions have been bellcrank lever. Adjust the screw (4) to pro­ found to have the throttle linkage adjusted to vide a 5/16" (7,94inm.) gap between the bell-. -­ provide too high a control pressure with the re­ crank and the pad. A 5/16" drill should be sults of bumpy and relatively high upshift used as a gauge. speeds. Adjust the ball joint on the main bellcrank­ To improve the quality of the Flightomatic to-auxiliary bellcrank rod until the ball joint transmission operation and to prevent early stud freely enters the hole in the main bell­ clutch and band failures it is recommended that crank lever. During this adjustment the car­ the throttle linkage, on all cars equipped with buretor idle speed screw must be against its the Flightomatic transmission,. be adjusted stop and the 5/16" gap at the bellcrank must during preparation of the new car for retail be maintained. delivery and, any time a linkage adjustment is required, using the following procedure. Stop the engine and remove the 1/8" (3,175mm.) located near the throttle lever and install a 185 CU. IN. ENGINE pressure gauge.

set the selector lever in the P or N position Place the selector in the D position and and operate the engine until it reaches operat­ operate the engine at 1000 r '. p.m. with the rear ing temperature and the carburetor choke is in wheels held stationary by the foot brake. Ad­ the wide open position. Disconnect the rod just the length of the main bellcrank-to-throttle which connects the accelerator bratket (1, Fig. valve outer lever rod to obtain 80-85 p.s.i. 2) to the auxiliary bellcrank (2) by removing Stop the engine and remove the pressure gauge the clevis pin from the clevis. and install the 1/8" pipe plug.

connect a tachometer to the engine and set Hold the accelerator bracket arm approxi­ the engine idle speed to 550 r.p.m. by adjust- mately 3 7/8" (9,82Cm.) from the fire wall and,

3 No. 328 SERVICE BULLETIN September

adjust the accelerator-to-auxiliary bellcrank rod Adjust th e length or the be llcrank-to-throttle clevis until the clevis pin rreely enters the valve outer lever rod to obtain 80 -85 p.s.i. elevis and the bracket arm. (95-100 p.s.1. on cars equipped with super­ charger or heavyduty transmissions such as used VB ENGINE WITH 2-BARREL CARBURETOR (INCLUDING on police cars, etc.). Stop the engine and CARS WITH SUPERCHARGER OR H. D. TRANSMISS ION) remove the pressure gauge and install the 1/8" pipe plug. set the selector lever in the P or N position and operate the engine until it reaches operat­ VB ENGINE WITH 4-BARREL CARBURETOR ing temperature and the carburetor choke is in the wide open position. Make sure that the set the selector lever in the P or N position throttle return check is operating correctly. and operate the engine until it reaches operat­ connect a tacho•eter to the engine and set the ing temperature and the carburetor choke is in engine idle speed to 550 r.p.m., with the the wide open position. Make sure that the selector lever in the N position, by adjusting throttle return check is operating properly. the carburetor idle speed adjusting screw. connect a tachometer to the engine and set the engine idle �peed to 550 r.p.m., with the selector lever in the N position, by adjusting the ca rburetor idle speed adjusting screw.

set the stop on the bellcrank to provide 17/64"(6,747H,) gap between the bellcrank pads (see Fig. 3). A 17/64" dril 1 should be used as a gauge. M ake sure that the carburetor-to-bell­ crank rod-ball joint is in the outer hole (away rrom the centerline or the engine) and that the ball join t is on the underneath side or the bellcrank lever. Adjust the carburetor­ to-bellcrank rod until the idle speed adjusting screw just begins to leave its stop.

Fig. 3 sto·p the engine and remove the 1/8" pipe plug located near the throttle lever and the 1. carburetor-to-bellcrank rod ;111 an u a 1 lever and inst a 1 l a pressure gauge. 2. Hole used with 4-barrel carburetor 3. Hole used with 2-barrel carburetor i Place the selector lever in the D position Set the stop on the bellcrank to provide •and operate the engine at 1000 r.p.m. with the

17/64"( 6,747mm.) gap between the bellcrank pads 0!rear wheels held stationary by the foot brake. (see Fig. 3). A 17/64." drill should be used as Adjust the length or the bellcrank-to-throttle a gauge. After the st op has been adjusted, hold valve outer lever rod to o�tain 80 -85 p.s.i. in this position. Make sure that the carburetor Stop the engine and remove the pressure gauge to-bellcrank rod ball joint is in the inner hole and install the 1/8" pipe plug. of the bellcrank pad (toward the center line or the engine) and that the ball joint is on the underneath side or the bellcrank. NOTE: The carburetor-to-bellcrank rod ball joint should •,+++9 '''''' be in the outer hole or the bellcrank pad (away from the centerline or the erigine) and the ball CAMSHAFT THRUST PLATE 185 joint should be on the upper sid� or the bell­ ENGINE - crank on cars equipped with a supercharger. CU. IN. TRUCKS AND Adjust the carburetor to bellcrank rod until PASSENGER CARS the idle speed adjusting screw just begins to Please 'l'eco,,-d this a,,-ticle on the Se,,-vice leave the stop. Builetin Reje'l'ence page o,,- you,,- 1957 Studebake,,­ Passenge,,- ca,,- Supplement and the 3E Se,,-ies stop the engine and remove the 1/8" pipe f'l'UCks Supplement • plug located near the throttle lever and manual lever and install a pressure gauge. Starting with serial numbers 56G-1223727, 57G-74385 (Canada) and 3E5-10 -12142, the 3 inch Place the selector lever in the D position diameter spot!ace on the front or the 185 cu. and operate the engine at 1000 r.p.m. with the in. engine block around the front camshaft rear wheels held stationary by the foot brake. bearing has been eliminated. The rear side of September S E R V I C E B U L L E T I N No. 328

the Thrust Plate, Part No. 194228, was undercut DUPONT'S 18595 LOMBARD GREEN BAKING ENAMEL - at both ends at the point where the cap screw iXP (their f289-75458) mounting holes are located, to conform to this spotrace. With the elimination or the spotface 253-0582 Milori Blue 58-1% on the block there is no longer a need for an 253-0679 Chrome Yellow 21-4% undercut in the thrust plate. Consequently, 253-0284 Black 9.6% the undercut has also been eliminated and the 2 53-0953 White 0-9% plate used in production is !lat. The new B-547 Base 10.0% production plate can not be used on the block 100.0% which has been spotraced but the old plate can be used with either block. Therefore, to avoid DUPONT'S *1050 HIGHLAND GRAY BAKING ENAMEL confusion, the Parts Depots will carry only the BBZ - (their 1289-75460) old Thrust Plate, Part No. 194228. IGNITION 253-0953 White 4 5. 9% AND STARTING SWITCH 253-0284 Black 36.3% 1955 - 1957 MODEL STUDEBAKER 253-0527 Blue 1.6% CARS AND TRUCKS 253-0750 Green 1-2% B-547 Base Please record this article on the Service 10. 0% B-614 Base Bunetin reference page at the end of Elee tri­ 5-0% 100.0% caL section of 1955 and 1956 Studebaker Passen­ ger Car Shop Nanuals and 2E Series Prue ks Shop /rfanual. 54#9��5\M some time ago the ignition and starter switch as used on 1955 to 1957 models �as 1955 improved for better operation. Internal STOP LIGHT SW1TCH - and changes were made and a new switch, Part No. 1956 PACKARD AND CLIPPER WITH 1544151 was substituted for the switch, Part No. TORSION LEVEL SUSPENSION 536139. Please record this article in the Torsion Level suspension section of your 1955-56 To standardize the part and make it adap­ Packard Service Nanual, table to different models the vendor has en­ larged a boss in the die cast switch housing There seems to be a problem in the field in which changes the appearance or the housing. the removal and installation of the stop light The new switch carries Part No. 1544998 and is switch on the 1955 and 1956 Packard and Clipper completely interchangeable with switch Part No. models equipped with torsion level suspension 1544151. When stock of Switch, Part No. 1544151 because or its size. It is an unusual size and is exhausted, the new switch, Part No. 1544998 requires a 31/32" socket. will be substituted. PAINT SERVICING THE PACKARD ANTENNA FORMULATIONS 1957 MODELS 1955-1956-1957 MODELS NOT ON SCOTSMAN MODELS In the matter or servicing the Packar d O'BRIENS fl048 INCA CREAM BAKING ENAMEL - BBX Electric Antennas, either front or rear fender (their fS-1548) type, some dealers are replacing complete units, or applying complete rear sets, when only cad1iu1 Selenium Pigment 3.00% detail parts are actually required. Rutile Non-Chalking Ti02 20. 02 % Alkyd Resin (50% solids) 51. 92% In the case of warranty, when complete Melamine Resin (50% solids) 11.73% equipments are applied to effect a service Aromatic solvent 8.52% correction, the dealer in some cases has Aliphatic solvent 3.92% installed only the parts required from the kit, Alcohols .62% then returned the failed part or parts along Stabilizers -27% with the new unused kit parts to the Claims 100.00% Department for credit. SCOTSMAN MODELS This practice must be discontinued. Parts COOK'S 11051 ADMIRAL BLUE BAKING ENAMEL - BCA - replacements and return material handled in (their 832-L-108) this manner will result in the new material being returned to the dealer. In the repair of Milori (Iron Blue) 91-5% electric antennas, only the parts or unit re­ Non-chalking Titanium Dioxide 8°5% quired to make the necessary corrections must 100. 0% be inst all ed. 5 No. 328 S E R V I C E BULLET N September

All the detail parts as listed are available 6484430 Antenna Ma in Tube AsseMbly and carried by the central warehouse. NOTE: 6484429 Antenna Motor In the tw o equipments listed the single antenna 472196 operating switch is listed as a single unit and may be ordered 43 9932 switch Knob an d Retaining spring and installed as such. All items are listed in 339110 switch Knob Reta1ning Spring the 1955-1956 Packard Master Parts Book as lis­ 439926 Switch Name Plate - Clipper ted here with the exception of Part No. 6484683, 439922 switch Name Plate - Packard Actuator Drive Assembly for the Casco front 47 5134 Antenna switch to Motor cable Assy. fender electric type antenna used only on the, 6484428 Antenna Tubes and Nylon 1955 and 1956, Clipper and Packard models. This part is list ed and illustrated in the service Bulletin No. 319 and applies to TRUCKS Antenna, Part No. 439545 in the Accessory Set, PA 472078. POWER STEERING - 3E SERIES DETAILS OF PA472078-PACKARD TRUCKS 1955-1956 EL!CTRIC FRONT FENDER PLease record this articLe on the Service ANTENNA BuLLetin Reference page of your 3E Series :true ks suppiement. 439545 Antenna Assembly 472052 Lead-In Cable It is possible, in sor.e cases, that air may switch Assembly remain in the hydraulic system or the power 472196 for 439678 Switch Feed Cable steering system even though the procedure 439926 Switch Nall!e Plate - Clipper 1955-56 bleeding the system as outlined in the 3E Switch Name Plate - Packard 1955-56 Series Trucks supplement bas been carefully 439922 power 439932 Switth Knob - Clipper 1955-56 followed. This is because the cylinder 439908 switch Knob - Packard 1955-56 piston does not travel the entire length of the switch Knob Retaining Spring cylinder when the power cylinder is attached to 43{)910 recommen­ 64lH683, Actuator Drive Assembly· the anchor brack et. Therefore, it is ded, when difficulty is encountered in removing DETAILS OF PA475160-PACKARD all of the air from the system, that you dis­ 1956-1957 connect the power cylinder rod at the axle anchor bracket. Remove both outer and inner 469540 Antenna Assembly steel washers and insulators from the cylinder 469513 Antenna Dome Nut rod. Then, just barely crack the control valve, 469756 Antenna to Fender Seal first to tbe left then to the right so that the 47 516 3 Antenna Insulator piston will travel the entire cylinder length 469757 Antenna Lead-In Cable and dispel! the air which may have remained 475101 Antenna Mtg. Brkt. -- Clipper from the previous bleeding operation. 469564 Antenna Mtg. Brkt. Packard

STUDEBAKER-PACKARD CORPORATION SOUTH BEND, INDIANA

l"RINTED IN U. S. A.