CASE VAS Tractor and Engine Service Repair Manual Instant Download

1
VA Series Tractor and Engine Service Manual
Rae 258
epr nted
2
GROUP I, GENERAL SECTION A, INTRODUCTION LIST OF
CONTENTS Group
I
GENERAL How To Use The Manual Tractor Models
Tools (Service) Lubrication (General) Repair
Parts Handling (Serial Numbers)
11
EHGl HE Splitting Tractor Service Hints Engine
Overhaul Procedures Clutch Carburetion, Fuel and
Governor Electrical System (Ignition)
III
TORQUE TUBE Service Hints Clucch Throw-out Oil
Reservoir and Filter Belt Pulley
IY
TRANSI4ISSION Service Hints Splitting Tractor
Transmission Overhaul Di8erential Assembly
Turning Brakes
Y
REAR AXLE Service Hints Splitting tractor Rear
Axle (VA, VACVAO, VAI) Rear Axle (VAS, VAH)
Power Take-Off Assembly
YI
FRONT AXLE ASSEktBLY Service Hints Splitting
Tractor Front Wheel Bearings Steering Knuc Mcs
Spindles Steering Mechanism Sickle Grinder
Attachment (VAI)
YII
HYDRAULIC SYSTEMS Service Hints (Low-Pressure
System) Oil Reservoir and Pump (Low-Pres sure)
Depth Control Unit and Eagle Hitch Single Control
Valve Double Control Valve Portable Cylinders and
Connections Combination Hydraulic Applications
High Pressure Pump and System
A.l
3
GROUP I, GENERAL SECTION A, INTRODUCTION
PARTS DEPT. THERE WAS A MECHANIG NAME D
BOB, WHO MADE A REAL MESS OF A JOB, NOW TELL ME,
HOW GAN YOU IF YOU DONT READ YOUR MA NUAL DO A
JOB ANY BETTER THAN BOB.
This manual has been prepared to aid your service
department in the proper methods of overhauling
and adjusting 'VA' Series Tractors. \Jse this
manual as a ready reference. Keep it in the shop
and re fer to it when service prnplems
arise. Each major part or assembl y of the
tractor i s treated in a separate 'Group. For
instance, if the transmission is being
overhauled, all neces sary pro- cedures,
tolerances and torque tightness pertaining to the
transmit s sion and its assembly to the tractor
will be found within this specific group.
GROUP II ENGINE , CLUTCH ELECTRICAL B FUE
GROUP I GENERAL INFORMATION LUBRICATION
GROUP HY DRAULIC S B EAG LE HITCH
GROUP E5 FRONT AXLE B STEERING GEAR
GROUP ID TOROUE TUBE B BELT PULLEY
OUP V REV R AXLE 0 POWER TAKE- OFF
GROUP IR TR ANSMISSION B BRAK ES
'VA' Serie s Tractor s have several units in
common such as the engine, carburetor, cooling
system, ignition system and clutch. However,
some differe rice s will be noted between
steering gears, brakes, power-take-off and axle
assemblies on certain 'VA' Tractors. In order
to provide complete service information, each
group covers all service data pertinent to all
models indicated. Certain items such as sheet
metal, seats, plat- forms, drawbars and wheel
weights, are not touched upon in this manual as
their use is rather obvious and maintenance
extremely simple. Within each section a s
chematic diagram or eaploded view of the as
sembly or unit is shown to aid the service man in
proper sequence assembly of each unit. Thi s
illustration also serves as quick identification
of the repair parts needed, which is shown in the
same type view in the Case Parts Catalog. Keep
shop equipment clean, and maintain cle an
working methods. If possible, steam clean
tractor
FOR BETTER SERVGE
before disasseaibling for overhaul. Be
extremely careful to prevent dirt and dust from
entering parts as they are as sembled.
KEEP YOUR SHOP "SH IP SHAPE " !
4
https//www.ebooklibonline.com Hello dear
friend! Thank you very much for reading. Enter
the link into your browser. The full manual is
available for immediate download. https//www.ebo
oklibonline.com
5

• GROUP I, GENERAL
• SECTION A, INTRODUCTION
• USE O F THE I4AIIUAL
• This is a loose-leaf ' style manual,
  designed to be permanently kept up-to-date P
  eriodically, as changes, revisions or new
  developments take place, this data will be
  availabl e to you in the form of new filler pages
  If these pages are promptly inserted in the
  proper place in the manual, your service
  department will constantly have up-to-the-minute
  information available at their finger tips
• Here is how the manual is "made up"
• GROUPS Each complete unit or subassembly is
  covered in a GROUP' Groups are identified by
  Roman numerals, (I, II, III etc ) The group
  number and name will be found as a running
  heading, at the top of each page
• SECTlOHS Within each group are the "SEC-
  TIONS" covering specific parts of the group
  Sections are designated by letters, (A, B, C, e
  tc ) In the front of each Group will be found a
  list of Sections in that Group
• PAGES The "PAGES" of each section ace
  numbered consecutively beginning with number 1
  The page numbers, (along with the Section
  Letter), appear in the lower outside corner of
  each page, for easy identification FIGURE
  numbers are also identified in the sazac fashion
  as page numbers in each section
• Since it is possible to have the same page number
  in the corresponding SECTION of each MAIN GROUP,
  it is extremely important to always refer to the
  MAI I GROUP, number wbich appears at the top Of
  each page
• PAGE DATE I4ARKS In the lower inside corner of
  each page appears a small printing date mark
  When- ever new filler pages are received,
  which replace existing pages, make certain
  the page with the mos t recent date mark is
  inserted and the older page re- moved

Suppose you want information on the Engine Oil
Pump
HOW TO FIND At4 ITEtñ Here's how to find
it 1 Locate the Group (ENGINE, GROUP-II)

1. Look for pump under (LUBRICATION, SECTION J )
2. Locate the 'OIL PUMP in this section starting
   with page J -2

A-3
1258-25d
6
GROUP I, GENERAL SECTION A, "VA" SERIES TRACTOR
MODELS
l odel YAS
Model YAH
A-4
RIM8-2
7
GROUP I, GENERAL SECTION A, VA" SERIES TRACTOR
MODELS
Model VAC
Si ng(e fro nt wheel
Duol front wheal G
Model YAC J4
Model YAE Engine
A.5
58-254
8
GROUP I, GENERAL SECTION B, SERVICE TOOLS
TOOLS The right tool for the job saves
tempers, time and money plus enabling your
service department to turn out work that will
perform factory new '' All tool s illustrated
in this section and shown in use throughout the
manual are specia1 tool s available from
your Case Fac tory Sales Branch or from tool
companie s specializing in their manu-
facture Simple tools, fixtures, slings and
gages shown throughout this manual and not listed
in this section can easily be made in your own
service department Dimensioned drawings of the
se items area included for your convenience
Fig B-1
Recommended Owotonno Service Tools
1 952-A Bearing Pulling Attachment
2 930-D Q'J " Legs for Push P uller
3 938 Push P uller
4 1002 Grip-D-Matic P uller
5 924 P air of Threaded Adapters 'J " N F
6 954 Pilot Bearing P uller
7 18-M " Male a 'J Female Adapter
8 930-B 16' " Legs for Push P uller
9 MA-48 Box Wrench H D , 1'/
10 A-200 Valve Spring Compressor
11 868 Ring Compressor
12 943-A Long J aws for No 943 Attachment
13 930-E 4'," Legs for Push P uller
14 938-J Swivel Sle eve Pulling fttachment
l5 952 Short Bolts for 952-A
16 970-3 3/, Adapter for P uIling Sleeves
17 943 Bearing Cup Pulling Attachment
F ig B-2
Yolve Seat Insert Puller Set
The obove puller se? iS t/anufacturd by Bishmon
Mfg Co Osseo, Minn and con be pUrCltOSed
tEOfTi OwOtOnnO TOOI CO 0 from your locol Auto
Supply Co
All tool s listed above are manufactured and sold
by the
HO TE
Owatonna Tool Co , Ow atonna, Minn
B.l
l258-2-5d
9
GROUP I, GENERAL SECTION B, SERVICE TOOLS
T-102
T 105
T-103
T-IO4A
T-135
T-139
V 20213
T-107
T-l2k
T-140
T-142
T-134
T-108
T-110
VTA I7E8
T-125
T-I29
T-I30
T-124
T-112
T-I36
T-135
T-I37
Fig B-3 "YA" Series Tractor Service Tools
Number Tool Description
4501 AA T 10 2 T 103 () T 104 () T 104 A () T 105 () T 105 A I") T 105 B T 106 T 107 T 108 T 109 T 110 T 112 T 117 T 120 T 121 T 122 T 123 ( ) T 124 ( ) T 125 T 128 ( ) T 129 T 130 T-131 T 132 T 133 T 134 T 135 T 136 T 137 T 139 T 140 T-142 V 20213 () VTA 481 () VTA 542 VTA-1728 Gagecomplete, hydraulic oil pressure Rotary file extension3/8 " cutter Rotary file extension1/2" cutter Ringdrive, rear axle oil seal inst allation Handledrive ring, rear axle oil seal installation Sleeve P uller Fork Sleeve Puller Disk Sleeve P uller Bolt Nuthez head, 3/4" Washerplain, 3/4" Plugcrank shaft oil seal installation Sleeve mainshaft oil seal installation Sleevereac axle oi1 seal installation Sleevedifferential oil seal installation (disk brake s) Sleevebe1t pu ey housing oil seal in stallation Ball seat poli sher1/4" Air pre ssure gage high pressure hydraulic pump service Plugbearing carrier oil seal installation (disk brakes) Tuberam packing install acion Spacergear, main shaft Shaftclutch install ation Holdersnap ring, power take off shaft Driversnap ring, power take off shaft Sleeveram shaft oil seal installation Snap ring installation tool s (includes T 124 and T 125) Drivermain shaft bearing cup Gageclutch alignment Torque wrench eatension cylinder head nuts Valve seating tool (depth control valve) P ullerbelt pulley Sleevedifferential oil seal installation tband brakes) Wrenchsocket (for VT 5095 brake drum nut) Wrenchworm sleeve ad justing Sleevepilot, oil seal (see VTA 1728) Dri veroil seal and be aring (see VTA 1728) Sleeveclutch quill in stallation Washerdri ver, oil se al (see VTA 1728) Driverrear axle oil seal (include s T 104 and (2) T 104 A Sleeve Pull er (incl udes T 105, T 105 A and T 105 B) Oil seal and bearing driver kit (incl ude s T 139, T 140, and V 20213) Gagecomplete, hydraulic oil pressure Rotary file extension3/8 " cutter Rotary file extension1/2" cutter Ringdrive, rear axle oil seal inst allation Handledrive ring, rear axle oil seal installation Sleeve P uller Fork Sleeve Puller Disk Sleeve P uller Bolt Nuthez head, 3/4" Washerplain, 3/4" Plugcrank shaft oil seal installation Sleeve mainshaft oil seal installation Sleevereac axle oi1 seal installation Sleevedifferential oil seal installation (disk brake s) Sleevebe1t pu ey housing oil seal in stallation Ball seat poli sher1/4" Air pre ssure gage high pressure hydraulic pump service Plugbearing carrier oil seal installation (disk brakes) Tuberam packing install acion Spacergear, main shaft Shaftclutch install ation Holdersnap ring, power take off shaft Driversnap ring, power take off shaft Sleeveram shaft oil seal installation Snap ring installation tool s (includes T 124 and T 125) Drivermain shaft bearing cup Gageclutch alignment Torque wrench eatension cylinder head nuts Valve seating tool (depth control valve) P ullerbelt pulley Sleevedifferential oil seal installation tband brakes) Wrenchsocket (for VT 5095 brake drum nut) Wrenchworm sleeve ad justing Sleevepilot, oil seal (see VTA 1728) Dri veroil seal and be aring (see VTA 1728) Sleeveclutch quill in stallation Washerdri ver, oil se al (see VTA 1728) Driverrear axle oil seal (include s T 104 and (2) T 104 A Sleeve Pull er (incl udes T 105, T 105 A and T 105 B) Oil seal and bearing driver kit (incl ude s T 139, T 140, and V 20213)
B-2
10
GROUP l, ?CNCRML SECTION C, LUBRICATION
Fig C1 YA Series Tractors - Prssure Gun
rii
c-i
RI-258-25
11
GROUP I, GENERAL SECTION C, LUBRICATION LUBRICATIO
N POINTS Before applying grease gun to pressure
fittings, wipe ac cum ulated dirt from each
fitting. Ke ep o ils and lubricants clean in
tightly covered containers. Wash out funnel s and
measure s before using. Al ways clean dirt and
grea se from tractor fiI ler plugs and from
around the openings before removing plugs.
RADIUS ROO PIVOT AXLE PIVOT DRAG LINK
(FRONT) TIE ROD ENDS Fig. C-2. Pressure Gun F
ittings'A I Steering Gear PRESSURE FITTINGS
(every 10 hours of operation).
As sembly Part Fittings Strokes of Gun
Steering Column (VA-VAO-VAI) .................................................... 2 ........ 2
Drag Link (VA-VAO-VAI)................................................................ 2 .... .. . 2
Steering Shaft (VA-VAO-VAI) .......................................................... 1 . . ... .. 2
Pedestal (Dual Front Wheels) .................. .... . . . ... .... ...... . . 1 ............ 2
Upper Shaft (Steering) .................... ............. ....... ... .... ....... . 1 . ... ... 2
Lower Shaft (Steering)........ . . ... .. . . . . . . . . .. . .... . . . ..... 1 ............ 2
Steering Gear Housing ........................... -.. . . . .. . . . 1 .. . .. ... 2
Axle Pivot . ................................................ ............................. Axle Pivot (VAH) ......,........... ................. ................. .................... 1 ....... 2 3 . . . 2 1 ....... 2 3 . . . 2 1 ....... 2 3 . . . 2
Steering Knuckle . .. ........ ................ . . ......... . 2 ........... 2 2 ........... 2 2 ........... 2
Steering Knuckle (VAH) ........... ... .......... ....................................... 4 .. .. ... 2 4 .. .. ... 2 4 .. .. ... 2
King Pins (VA-VAO-VAI) . .. .. . . . ..... ....... ........ . . ... 4 ............ 2 4 ............ 2 4 ............ 2
Drag Link .. ........ .......................... .. ........ . ... . . . .. . ........ 2 . .. 2 2 . .. 2 2 . .. 2
Tie Rod Ends (unless factory packed).......................................... 2 ........ 2 2 ........ 2 2 ........ 2
Tie Rod Ends (VAH) ............. .................. .. . . .. . .. ..... .. .. 4 .. .. . . 2 4 .. .. . . 2 4 .. .. . . 2
Front Wheels (Single Front Wheel) .... .. . ................................... 1 ............ 4 1 ............ 4 1 ............ 4
Steering Mechanism (All Model s)
Clutch Brakes b Power Take-OA
B are edai Sh aft End Bearing (VAH-VAS)
i 1
2 ......... .. 2 (when used) 2 1
Clutch Shaft Bearings .... .
................. .. ... . ... . . ... ..
..... . .. .................................
...................
2
..... ..
2
4
Rock shaft Bearings . Draft Arm Leveling Screw
Tumbuckle Link Draft Arm Bearing (VAH-VAS)
Eagle Hitch
2 2
...... ......
NOTE Do no t ove rlubri cate the two center
rock shaft bearings. E xce ssive grease in thi s
cavi ty can p lug the rock shaft breather lin e.
C-2
RI258-254
12
GROUP I, GENERAL SECTION D, HANDLING AND STORAGE
OF REPAIR PARTS

• REPAIR PARTSGENERAL
• Store all cepair parts in a clean, dry p1ace
• Leave all parts in original containers until
  installation is made Cartons are designed to
  protect machined surfaces against damage frotn
  contact with other parts, as well as damage
  from dirt and mois ture

ANTI- FRICTION BEARINGS 1 All anti-friction
bearings are shipped in grease proof containers
Do not remove parts from boxes until ready to
install When making installation, open
containers on a clean bench and protect bearings
from dirt and dust
2
CYLINDER S LE EYES 1 Store sets of cylinder
sleeves in original con- tainers If cylinder
sleeves are stored indi vidually, stand them on
end as shown below Do not drop sleeves or lay
them on their sides during storage distortion may
result
"fi " in
t a
cs c 3 Machined surfaces of all pacts are
coated with a filei of rust preventative oil
before being shipped from the factory Do not
remove this film of oil while parts are in s
forage If film is removed for any reason, appl
y a new coat of rust preventacive oil before
returning parts to storage

• HYDRAULC PUMPS AHD CONTROL UNITS
• All openings must be plugged during storage to
  prevent dirt from entering hydra ul ic as semblie
  s
• Before placing units in storage make certain all
  interior surfaces are coated with a film of oil
• Store in a dcy bin in a location where conden-
  sation is not a problem If units are to be
  stored for a long period of time, remove oc-
  cas ionally and inspect for signs of moisture on
  interior surfaces Rust on the highl y machined
  surfaces of a hydraulic unit will render it
  in- operative

CRANKSHAFT AND CONNECTING ROD BEARING
LIHERS Bearing liners have highly polished
surfaces which must be protected during storage 2
Original containers separate liners to prevent
scratching of polished surfaces Do not remove
liners from carton until installation is made Do
not store liners loose in the cacton Do not touch
polished surfaces when handling bearings Contact
with hands will cause cor- rosion
D-l
Rl258-2-NJ
13
GROUP I, GENERAL SECTION D, ENGINE SERIAL NUMBERS
In several groups of this manual, reference is
made to tractor engine as sembl ie s before or
after a certain engine serial number. The same
procedure is also followed in current tractor
parts catal ops. In order to determine the
sequence in which any particular engine as sembly
was manufactured refer to the following 1isting.
The first number li sted indicate s the series
marking used on engines in the firs t VA Series
Tractor s manufactured. Changes in marking
series follow in chronological order.
or 5 digit number) or 5 digit number) or 5 digit
number)
VA-124 A (4 VA-124 B (4 V A-124 C (4 V AA
10,000 VAB 12,908 VAC 22,883
Manufactured for J.I. Case Company by
Continental Motors Corporation.
M anufa c ture d by J I. Case Company, A -
4700001 Rock Island, I Ilinoi s 7 2 B 11914
7 2C 7 2D 7 2E 7 2F 72G

• 09131
• (5 digit num her)
• (5 digit number)
• (5 digit num ber)
• (5 digit number) etc.

Current marking s ystem for engine as s emblie s
manufactured by J.I. Case Company, Rock Island,
Illinois
The current system for marking as indicated above
uses a two digit number with a letter followed by
a dash and a five digit number. E xampl e 72G
- 11222. The number 72 indicates that this is a
VTA-1072 engine assembly. The engine serial
number of a VTA- 1073 engine assembly
manufactured in the same sequence would read 73G
- (5 digit number). It can, therefore, be seen
that the letter indicate s the sequence and the
two digit number in the prefix indicate s the
type of engine. Because of the fact engines are
manufactured at Rock Island for other machines
such as combine s and because of the need for
replacement assemblies as repair items, there is
no definite relation between en gine s erial
number and tractor serial number.
F ig. D-2. Engine Serial Number
ig. D t. Tractor Seriol i/umber
If the parts to be ordered are engine parts, give
the serial number of the engine, which is
Stamped in the right hand side of the block.
When ordering parts, always give the tractor
serial number. This is found on the name plate
on the in strument panel.
e.zx-z.x
D-2
14
GROUP II, ENGINE ENGINE
ROCKER ARM
VALVE COVER
VALVE S
WATE R PUMP
CYLINDER HEAD
SLEEVE
CAMSHAF T
ENGINE BLOCK
FLYWHEEL
GOVERNOR ., TI MING GEARS
CRANKSHAFT
OIL PAN
OI L PUMP
CROSS-SECTIONAL VIEW THROUGH THE CASE VA
SERIES ENGINE
A- T
l258-2 54
15
GROUP II, ENGINE CONTENTS OF ENGINE GROUP

• Section
• General Specifications
• Clearance and Running Spe cifications
• Service Hints
• O Service Lubrication
• Splitting Tractor and Removing Engine
• Cylinder Head Assembly
• Hydraulic Pump
• Timing Gear Cover
• Water Pump and Cooling System

J
Lubricating Sys tern
K
Clutch and Flywheel Assembly

• L Model VAE Engine Unit Clutch
• Al Crankshaft
• H Cam shaft
• Main Bearings
• Connecting Rods and Bearing s

0
Pistons and Rings

1. Cylinder Sleeve s
2. Fuel System
3. Ignition and Electrical Equipment

t-2
RI-MB-2-S
16
GROUP II, ENGINE SECTION A, GENERAL SPECIFICATIONS
CYLINDER HEAD
IGNITION and ELECTRICAL
Type Firing Order Valve Tappet Clearance Compre s
sion Ratio
Valve in head 1 - 3 - 4 - 2 (cold) 014 inch 6 00
to 1 (V and 'VA' Serie sStandard Gaso-
line) 5 00 to 1 (V and VA SeriesStandard L C
F ) 7 25 to 1 ('VA' Series Spec ial H A P is
Cons)
Spark Plugs
Champion No 8 Com 64 K or AC No 85 S Com 18mm
thread Gap 025 inc h Shank Length 1/2 inc h D
istributor Automatic Advance 26 Point Gap 020
inc h Magneto Case Model 41 Point Gap 008- 012
inch Magneto Advance 25 6 Volt 15 plate Pos
itive Post grounded 6 Volt Automatic v oltage reg
iilator Automatic e ngageme nt 20 Amp replaceable
Ignition (Standard)
Ignition (Optional)
TIktING GEAR AND GOYERNOR
Battery
Flyball (prior to engine Number 72-C 18131 (9
indi- v idual balls) F lyweight (After engine
Number 72-C 18130 (weights on timing gear)
Governor
Generator
Starting Motor F use Engine Speed
All Agricultural Tractors
No load 1600 RPM Full load 1425 RPM No load
1925 RPM Full load 1800 RPM 1425 RPM
/ATER PUIJP AND COOLIHG SYSTEkt
VAI Tractor (Industrial)
Water Pump Water Pump Dr ive Thermostat
Position Upper Hose
Centrifugal Type 'V'' Belt Upper Hose
Connections 3 ply (3-1/4 inches long) (1-3/4 I D
) (2-1/8 O D ) 3 ply (2 inc he s long) (1-3/4 I D
) (2-1/8 O D )
Engine must be reduced to this speed for all
Power Take-Off Operations (See Page S-27)
No load 1600 R PM F u11 load 1425 RPM
VAE Engine Unit
Drain Elbow Hoses
APPROXIhtATE CAPACITIES
LUBRICATING SYST EU
Engine Crankcase Without F iller With
Filter Cooling System Main Fue1
Tank VACVAS VA-VAO-VAH-VAI Auxiliary F ue1 Tank
(When used)
US 4 qt 5 qt 13 qt
Imperial 3 34 qt 4 18 qt 10 85 qt
Gear TypeF loading in- take screen Replaceable
Cartridge
Oil Pump
Oil Filter
10?2 gal 9'J ga1
8 77 gal 7 72 gal
PISTOHS AND SLEEYES
Cylinders Type Cylinder Bore Stroke Piston
Displacement
4 Wet Sleeve 3-1/4 inc h 3-3/4 inch 124 cu inch
1 gal
835 gal
FUEL SYSTEIJ
Updraft (Marvel-Schebler) or (Zenith) 7/8 inch S
A E Flange Oil bath
Carburetor
Air Cleaner
A-3
258-2 54
17
GROUP II, ENGINE SECTION B, ENGINE OPERATING
CLEARANCES
Cams haft bearing clearance ..
..................................................
..................................................
.......... .002 to .004 inch Camshaft end c
learanc e ........................................
.003 t o .007 inch Connecting Rod Bearing
running clearance .. ............................
..................................................
...... .0015 to .002 inch Connecting Rod side
clearance .......................................
..................................................
................................ 006 inc h
Crankshaft end clearance .. ......................
.................... ....... . . . 003 I o .005
inc h F lywhee1 clutch face runout when as
sembled on engine not to exceed .004 inch t otal
indicator reading Main bearing running clearance
............................... .0015 to .002
inch Oil PumpGear end c learance
..................................................
............... . ........................ .0035
to .006f inch Oil P um Gear to hous ing (rad
ia1 c learance) .. ..........................
.................. ....... .......................
. .002 t o .00f inc h Oil Pumpdrive shaft
to bushing .. ....................................
..................................................
............. .002 to .0045 inc h Oil
Pumpdcive gear to shaft ...............
................................. ..
................................................
.0005 to .002 (tight) Oil Pump drive gear and
crankshaft gear (back lash).......................
..............................................
. 005 t o .010 inc h oil Pres sure at 1425 RPM
..................................................
.. . .............................................
................... 12-20 pounds Piston rings
in groove (top) ..............................
..................................................
.................................................0
03 inch Piston rings in groove and 3
..................................................
..................................................
................ .002 inch Pistonringsingroove-
4 orod contol ..-..-........-............
...... ........................................
. .0015 inch Piston ring gap in c ylinder .
..................................................
... ... ................................ . 009 t
o .014 inch Piston pin in connecting rod
bushing ..........................................
................................................
.0002 to . 0003 (loose) Piston pin in piston .
..................................................
..................................................
................................ L ight push
fit Piston fit in sleeve3'J inch bore 510
lbs. pull on .003 feeler (fee ler stock inch wide)
YALYES AHD GUIDES Valve tappet clearance ..
..................................................
.,................................................
................................ .014
cold Intake valYe in guide
..,...............................................
..................................................
....................... . 0015 t o .002
inch Exhaust valve in guide .. ...................
..................................................
.................................................
. 004 to .0045 inch Intake seat width
................. .. .............................
.... . .......... ....... . 066 to .078 after
grinding Exhaust seat width ......................
................ .. ..... ........................
.............. ... . ............... . 064 t o .
078 after grinding
B- T
eizss-2-54
18
GROUP II, ENGINE SECTION B, USING A TORQUE WRENCH
9/ he n a nut is tightened on a bolt or stud, a
clamping action is set up between t he nut and
the c omponent parts Actually as the nut is
tightened, the bolt or stud is stretc hed or
elongated slightly This stretching action of the
bolt or stud maintains the clamping force on the
component parts be ing held together
In order to properly control t his stretch and
not build up e xce s sive pressures, (which can
s nap a bolt in two) the torque wrench should be
used However in order to obtain fairly accurate
torque wrench tig htnes s several
factors must be understood Failure to consider
the following c onditions will prevent an ac-
c urate torque wre rich reading
SOGKET WRENCH

• Be sure to lubricate the threads of the bolt
  before the nut is installed
• Use the exact type of washer, under the nut, thac
  is called for in the serv ice manual
• Be sure to pull the torque wrench handle with a
  steady even pull, exerted at eight angles to the
  wrench handle, when the dial is being read (DO
  NOT USE AN EXTENSION ON THE HANDLE IT WILL
  CAUSE THE DIAL READING TO BE INACCURATE )
• Your torque wrench dial will register in foot
  pounds of torque tightness Be sure to u se the
  recom- mended torque tightness shown in this
  manual, for each specific assembly procedure
• TORQUE \RENCH RECOMMENDATIONS

Cylinder Head Stud Nuts Manifold Stud
Nuts Carburetor to Manifold Capscrews Valve
Rocker Arm Bracket (Stud Nuts and Capscrew) Push
Rod Adjusting Screw Nuts Connecting Rod Bearing
Bolts Engine Oil P an Capscrew s Main Bearing
Bolts Flywheel Attac hing Nuts Rear Main Bearing
Seal and Retainer Cap screw s Timing Gear Cover
Cap Screws Water Pump Studs and Capscrew Spark
Plugs Engine to Torque Tube Front Axle and
Radiator Bracket to Engine Camshaft
Nut Hydraulic Pump to Engine
60 6 5 Foot pounds
30 15 20
" "
w ii
90 100 65 70 6 -8 " 2025 2025 " 3J TT 11
0115 " 100 n 80-90 " 25 II
"
" It
'
it ' 11
B-2
RI 258-2-5
19
Suggest If the above button click is invalid.
Please download this document first, and then
click the above link to download the complete
manual. Thank you so much for reading
20
GROUP II, SNGINS SECTION C, SERVICE HINTS
LEARN TO ACCURATELY DIAGNOSE SERVICE PROBLEMS WHE
N THE TRACTOR IS 8RO UGHT INTO YOUR SHOP AG
CURATE TROUBL E SHOOT ING WILL SAVE TIME AND
MONE7 BOTH FOR YOU AND YOUR GUSTOMER
".t. -..
.
Starting Molar Will Not Turn Engine
SUGGESTED REMEDY
RE FE RENCE
PROBABLE CAUSE
1 Battery discharged 1 Charge or replace battery 1 Page T-6
2 Battery terminals or ground 2 Remove and clean 2 Page T-7
cables loose or corroded
3 Starting motor faulty 3 Have motor serviced 3 Page T-5
4 Starter drive gear jammed 4 Remove starting motor 4 Page T-5
in flywheel
Piston locked in cylinder 5 Free up piston Inspect head gasket for leaks 5 Page F-3
6 Poor starting switch contact 6 Replace switch
7 Cylinder full of water 7 Check head gas ket, head and block 7
Engine Will Hot Start (No Spark)
1 Ignition switch partly on 1 Turn on fully
2 Ignition switch faulty 2 Replace switch 2
3 Distributor points burned, pitted or dirty 3 Clean or replac e and adjust Check ground connection and condenser 3 Page T-1
4 Distributor points not opening 4 Replace or clean and adjust 4 Page T-1
or points not closing
Loose or corroded ground or 5 Clean or replace and tighten 5 Page T 7
battery cable connections
6 Primary wire from coil to distributor broken, grounded Repair or replace 6 Page T-5
or out of terminals
7 SbOt-C1CU1C 1i COi1 7 Replace coil 7 Page T-3
I-258-2 54 c-1
21
https//www.ebooklibonline.com Hello dear
friend! Thank you very much for reading. Enter
the link into your browser. The full manual is
available for immediate download. https//www.ebo
oklibonline.com