Farmall 90 User manual

SECTION 10 -- ENGINE -- CHAPTER 1 1
SECTION 10 -- ENGINE
Chapter 1 -- Engine
CONTENTS
Section Description Page
Specifications 4..................................................................
Torques 12.....................................................................
Special Tools 14................................................................
Sectional Views 15..............................................................
Troubleshooting 20..............................................................
Overhaul 24....................................................................
10 001 10 Engine 24..................................................................
Removal 24.............................................................
Installation 40............................................................
10 001 53 Disassembly 42..........................................................
Engine Assembly on the Bench 56.............................................
Fitting the Bushings 56....................................................
Fitting the Tappets 57.....................................................
Fitting the Camshaft 57...................................................
Fitting the Oil Nozzles 58..................................................
Fitting the Crankshaft 58..................................................
Fitting the Connecting Rod -- Piston Assembly 61.............................
Fitting the Piston Connecting Rod Assemblies in the Cylinder Liners 63..........
BigEndCapAssembly 64.................................................
Fitting the Thermostat Valve 65............................................
Fitting the Cylinder Head 66...............................................
Fitting the Injectors 68....................................................
Fitting the Rocker Arm Assembly 69........................................
Fitting the Timing Gear 69.................................................
Fitting the Injection Pump 72...............................................
Fitting the Additional Counterweights 73.....................................
Fitting the Hydraulic Pump Drive Gear 74....................................
Fitting the Timing Gear Casing 74..........................................
Fitting the Crankshaft Rear Seal 75.........................................
Fitting the Flywheel 75....................................................
Fitting the Oil Pump 76....................................................
Fitting the Oil Sump 77....................................................

2SECTION 10 -- ENGINE -- CHAPTER 1
Section Description Page
Fitting the Crankshaft Front Seal 77.........................................
Fitting the Crankshaft Front Pulley 77.......................................
Fitting the Cooling System Union 78........................................
Fitting the Coolant Pump 78...............................................
Fitting the Fan--alternator Pulley 79.........................................
Fitting the Auxiliary Member Drive Belt 80...................................
Fitting the Exhaust Manifold -- Turbine 81....................................
Fitting the Injector Feed Pipes 81...........................................
Fitting the Priming Pump -- Feed Pipes 81...................................
Fitting the Pipes Between the Fuel Supply and Injection Pumps,
Pre-heating System and Tappet Cover 82....................................
Fitting the Starter Motor 82................................................
10 102 70 Crankshaft Front Seal 83.....................................................
Removal 83.............................................................
Installation 86............................................................
10 102 74 Crankshaft Rear Seal 86.....................................................
Removal 86.............................................................
Installation 88............................................................
10 106 12 Valve-rocker Arm Clearance 89................................................
Removal 89.............................................................
Installation 92............................................................
10 218 30 Engine Injector 93...........................................................
Removal 93.............................................................
Installation 94............................................................
10 246 14 Bosch Injection Pump 95.....................................................
Removal 95.............................................................
Installation 99............................................................
Timing 100..............................................................
Fuel Circuit Air Bleeding 103...............................................
10 402 10 Coolant Pump 103...........................................................
Removal 103............................................................
Installation 104...........................................................
10 402 30 Thermostat Valve 105........................................................
Removal 105............................................................
Installation 106...........................................................
10 406 10 Engine Radiator 107.........................................................
Removal 107............................................................
Installation 111............................................................

SECTION 10 -- ENGINE -- CHAPTER 1 3
Section Description Page
10 414 10 Coolant Pump and Generator Drive Belts 112...................................
Adjusting Tension 112.....................................................
Checks, Measurements and Repairs 114...........................................
Cylinder Block, Liners 114....................................................
Checks and Measurements 114............................................
Crankshaft 117..............................................................
Connecting Rods 119........................................................
Bushings 119............................................................
Checking Connecting Rods 120............................................
Checking Twisting 120....................................................
Checking Bending 121....................................................
Pistons 121.................................................................
Measuring the Piston Diameter 122.........................................
Piston Pins 122..........................................................
Conditions for Correct Pin-piston Coupling 123...............................
Piston Rings 123.........................................................
Valves and Camshaft 124.....................................................
Valves 124..............................................................
Tappets 127.............................................................
Camshaft 128............................................................
Cylinder Head 129...........................................................
Cylinder Head Mating Surface Check 129....................................
Cylinder Head Thickness 129..............................................
Cylinder Head Hydraulic Seal Check 129....................................
Low Oil Pressure Indicator 130................................................
Functional Checks 130....................................................
Oil Filter 130................................................................
Replacement 130........................................................
Cooling System 131..........................................................
Radiator - Flushing and Checks 131........................................
Coolant Thermometer - Testing 131.........................................
Thermostat Valve - Replacement 131.......................................

4SECTION 10 -- ENGINE -- CHAPTER 1
SPECIFICATIONS
GENERAL SPECIFICATIONS 4 Cylinders
Engine, technical type:
-- Farmall 90 model -- type F4CE9487M*J (BOSCH pump) See data on page
-- Farmall 95 model -- type F4CE9487N*J (BOSCH pump) See data on page
Cycle ................................................. diesel, 4--stroke
Fuelinjection .......................................... direct
Number of cylinders in line ............................... 4
Piston diameter
-- model Farmall 90, Farmall 95 ...................... 104 mm (4.0944 in)
Pistonstroke........................................... 132 mm (5.1968 in)
Total displacement:
-- model Farmall 90, Farmall 95 ...................... 4485 cm3(273.67 in3)
Compression ratio for Models Farmall 90, Farmall 95 . . 17.5:1
Maximum power:
-- model Farmall 90 -- type F4CE9487M*J ................ 65 kW (88 HP)
-- model Farmall 95 -- type F4CE9487N*J ................ 70 kW (95 HP)
-- Maximum torque: Farmall 90 -- type F4CE9487M*J . . . 375 Nm (277 ft-lbs)
-- Maximum torque: Farmall 95 -- type F4CE9487N*J 390 Nm (288 ft-lbs)
Maximum torque speed ................................. 1300 rev/min
Number of main bearings ................................ 5
Sump ................................................. structural, cast iron
Lubrication ........................................... forced, with lobe pump
Pumpdrive ............................................ camshaft
Engine speed/oil pump speed ratio ........................ 1:1
Oil cleaning ............................................ mesh filter on oil intake and filtering
cartridge on delivery line
Normal oil pressure with motor warmed--up
at slow idling speed ..................................... 1.2 bar (17.4 psi)
at fast idling speed ...................................... 3.8 bar (55.1 psi)

SECTION 10 -- ENGINE -- CHAPTER 1 5
GENERAL SPECIFICATIONS (continued) 4 Cylinders
Cooling system ....................................... coolant circulation
Radiator on Models Farmall 90, Farmall 95 ................ 4 lines of vertical pipes with copper fins
Fan,attachedtothepulley ............................... intake, in plastic with 11 blades
Coolantpump .......................................... centrifugal vane--type
Engine speed/coolant pump speed ratio ...................
Coolantthermometer ...................................
Temperature ranges corresponding to each section:
--Initialbluesection .....................................
-- Middle green section (normal working conditions) .........
--Finalredsection ......................................
1:1.977
colored scale divided into 3 sections
40°to 60 °C (104 to 140 °F)
60°to 110 °C (140 to 230 °F)
110°to 120 °C (230 to 248 °F)
Temperaturecontrol .................................... via thermostat valve
-- initial opening ....................................... 81 ±2°C (177.0 ±35.6 °F)
Timing system ........................................ overhead valves operated by tappets, rods
and rocker arms via the camshaft located
in the engine block; the camshaft is driven
by the crankshaft using straight--tooth
gears
Intake:
-- start:beforeT.D.C. .................................. 10°±30’
-- end: after B.D.C. .................................... 10°±30’
Exhaust:
-- start:beforeB.D.C. .................................. 64°
-- end: after B.D.C. .................................... 26°
Valve--rocker arm clearance (with engine cold):
-- intake ............................................. 0.25 ±0.05 mm (0.0098 ±0.002 in)
-- exhaust ............................................ 0.50 ±0.05 mm (0.0197 ±0.002 in)
For further timing system technical data ................... see page 9
Fuel system
Air cleaning ............................................ dual cartridge dry air filter, with clogged
filter indicator with centrifugal pre--filter and
automatic dust ejector
Fuelpump ............................................. with double diaphragm
Fuelfiltering ........................................... through wire filter in fuel supply pump, and
replaceable cartridge on delivery line to
injection pump
Minimum fuel flow rate with pump shaft rotating at 1800 rpm . . 127.6 l/h (33.7 gal/hr)
Cam operated .......................................... engine timing
BOSCHinjectionpump .................................. rotating distributor type

6SECTION 10 -- ENGINE -- CHAPTER 1
Fuel System (continued)
All--speed governor, incorporated in pump:
BOSCH ............................................... centrifugal counterweights
Automatic advance regulator, incorporated in pump:
BOSCH ............................................... hydraulic
For further fuel system technical data:
Fixed advance (pump setting for start of delivery before TDC)
-- Pressure setting -- Injection order, and other information re-
gardingtheBOSCHpump ............................... refer to the data for the relevant
engine type in the table on page 4
FUEL SYSTEM DATA
Turbo Charger:
-- For versions F4CE9487M*J:
--typeHOLSETHX25W .............................. TB11H/A085BXL
-- For versions F4CE9487N*J:
--typeHOLSETHX25W .............................. TB11K/A11CXL
Injectionpump ......................................... rotating distributor with speed governor
and advance regulator incorporated
BOSCH pump:
-- Farmall 90 model -- type F4CE9487M*J ................ VE 4/12 F1250 L2043 (S/N 504218826)
-- Farmall 95 model -- type F4CE9487N*J ................ VE 4/12 F1250 L2023 (S/N 504218827)
Directionofrotation ..................................... counter-clockwise
Injectionorder.......................................... 1--3--4--2 (For all models)
Farmall 90 Farmall 95
BOSCH--type injectors:
-- F4CE9487M*J ........................ 504254390
DSLA 145 P 1441 --
-- F4CE9487N*J ........................
--
504254390
DSLA 145 P 1441
Numberofnozzleholes ................... 77
Nozzle hole diameter mm (in)
-- F4CE9487M*J ........................ 0.192 (0.0076) --
-- F4CE9487N*J ........................ -- 0.192 (0.0076)
Calibrationpressurebar(psi)............... 260 to 272 (3771 to 3945) 260 to 272 (3771 to 3945)

SECTION 10 -- ENGINE -- CHAPTER 1 7
CRANKCASE/CYLINDER BLOCK DATA mm (in)
Crankcase............................................... cast--iron monobloc with cylinder liners,
crankshaft, camshaft and tappets
Cylinder bore diameter .................................... 104.000 to 104.024
(4.09944 to 4.0954)
Oversized cylinder bore diameter ........................... 104.500 to 104.524 (4.1141 to 4.1151)
Main journal half bearing seat diameter external no. 1--5 87.982 to 88.008 (3.4638 to 3.4648)
internalno. 2--3--4 87.977 to 88.013 (3.4636 to 3.4650)
Camshaft bushing seat diameter:
--front .................................................. 59.222 to 59.248 (2.3315 to 2.3325)
--intermediate ........................................... 59.222 to 59.248 (2.3315 to 2.3325)
--rear ................................................... 59.222 to 59.248 (2.3315 to 2.3325)
Diameter of standard tappet bores in crankcase .............. 16.000 to 16.030 (0.6299 to 0.6311)
CRANKSHAFT AND BEARINGS DATA mm (in)
Crankshaft .............................................. balanced with integral counterweights
Standard journal diameter ................................. 82.987 to 83.013 (3.2671 to 3.2682)
Journal undersizes ....................................... 0.250 to 0.500 (0.0098 to 0.0196)
Main journal half bearing thickness .......................... 2.456 to 2.464 (0.0966 to 0.0970)
Main half bearing undersizes (internal diameter) .............. 0.250 to 0.500 (0.0098 to 0.0196)
Clearance between bearings and main journal no. 1--5 0.041 to 0.119 (0.0016 to 0.0046)
n. 2--3--4 0.041 to 0.103 (0.0016 to 0.0040)
Standard crankpin diameter ................................ 68.987 to 69.013 (2.7160 to 2.7170)
Crankpin undersizes ...................................... 0.250 to 0.500 (0.0098 to 0.0196)
Standard connecting rod half bearing thickness ............... 1.955 to 1.968 (0.0769 to 0.0774)
Connecting rod half bearing undersizes (internal diameter) ..... 0.250 to 0.500 (0.0098 to 0.0196)
Bearingtocrankpinclearance .............................. 0.033 to 0.041 (0.0012 to 0.0016)
Standard crankshaft thrust washer width ..................... 37.280 to 37.380 (1.4677 to 1.4716)
Width of main bearing for thrust ............................. 25.980 to 26.480 (1.0228 to 1.0425)
Width of corresponding crankshaft journal .................... 37.475 to 37.550 (1.4753 to 1.4783)
Crankshaft assembly endfloat .............................. 0.172 to 0.240 (0.0067 to 0.0094)

8SECTION 10 -- ENGINE -- CHAPTER 1
CONNECTING ROD DATA mm (in)
Connecting Rods ......................................... printed in steel, oblique--cut type
Diameterofsmallendbushingseat ......................... 40.987 to 41.013 (1.6136 to 1.6146)
Outsidediameterofsmallendbushing ...................... 41.279 to 41.553 (1.6251 to 1.6359)
Interferencebetweensmallendbushingandseat ............. 0.266 to 0.566 (0.0104 to 0.0222)
Insidediameterofsmallendbushing(measuredafterfitting).... 38.019 to 38.033 (1.4968 to 1.4973)
Diameter of big end bearing seats .......................... 72.987 to 73.013 (2.8734 to 2.8745)
Connecting rod--crankpin end float ......................... 0.100 to 0.330 (0.0039 to 0.0129)
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mm (in)
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Farmall 90 -- Farmall 95
Pistons ................................................. light alloy with three compression rings,
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one scrap-
er ring
Standard piston diameter, measured at 2.4015 in. (61 mm) from
skirt base and perpendicularly to the gudgeon pin axis ......... 104.000 to 104.024 (4.0944 to 4.0954)
Piston clearance in cylinder liner ............................ 0.268 to 0.310 (0.0105 to 0.0122)
Pistonoversizes.......................................... 0.500 (0.0196)
Piston protrusion at T.D.C. from cylinder block face ............ 0.280 to 0.520 (0.0110 to 0.0204)
Gudgeon pin diameter ..................................... 37.994 to 38.000 (1.4958 to 1.4960)
Diameter of gudgeon pin seat in piston ...................... 38.010 to 38.016 (1.4964 to 1.4966)
Gudgeon pin to seat clearance ............................. 0.010 to 0.022 (0.0003 to 0.0008)
Gudgeon pin to small end bearing clearance ................. 0.019 to 0.039 (0.0007 to 0.0015)
Piston ring groove depth:
-- 1 °ring................................................. 2.705 to 2.735 (0.1064 to 0.1076)
-- 2 °ring................................................. 2.440 to 2.460 (0.0960 to 0.0968)
-- 3 °ring................................................. 4.030 to 4.050 (0.1586 to 0.1594)
Piston ring thickness:
-- 1 °ring................................................. 2.560 to 2.605 (0.1007 to 0.1025)
-- 2 °ring................................................. 2.350 to 2.380 (0.0925 to 0.0937)
-- 3 °ring................................................. 3.970 to 3.990 (0.1562 to 0.1570)

SECTION 10 -- ENGINE -- CHAPTER 1 9
P
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mm (in)
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Farmall 90 -- Farmall 95
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:
-- 1 °ring................................................. 0.100 to 0.175 (0.0039 to 0.0068)
-- 2 °ring................................................. 0.060 to 0.110 (0.0023 to 0.0043)
-- 3 °ring................................................. 0.040 to 0.073 (0.0015 to 0.0028)
Assembly clearance between piston ring ends in cylinder
sleeves:
-- 1 °ring................................................. 0.30 to 0.40 (0.0118 to 0.0157)
-- 2 °ring................................................. 0.60 to 0.80 (0.0236 to 0.0314)
-- 3 °ring................................................. 0.30 to 0.55 (0.0118 to 0.0216)
Sparepistonringoversizing ............................... 0.500 (0.0196)
VALVE TIMING GEAR DATA mm (in)
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:
--front .................................................. 54.083 to 54.147 (2.1292 to 2.1317)
--intermediate............................................ 54.083 to 54.147 (2.1292 to 2.1317)
--rear ................................................... 54.083 to 54.147 (2.1292 to 2.1317)
Diameter of camshaft journals:
--front .................................................. 53.995 to 54.045 (2.1257 to 2.1277)
--intermediate............................................ 53.995 to 54.045 (2.1257 to 2.1277)
--rear ................................................... 53.995 to 54.045 (2.1257 to 2.1277)
Clearancebetweencamshaftjournalsandbushings ........... 0.038 to 0.152 (0.0014 to 0.0059)
Camshaftendfloat ....................................... 0.230 ±0.130 (0.0090 ±0.0051)
Crankshafttocamshaftteethclearance...................... 0.076 to 0.280 (0.0029 to 0.0110)
TAPPET DATA mm (in)
Tappet bore in crankcase .................................. 16.000 to 16.030 (0.6299 to 0.6311)
Outside diameter of standard tappet ......................... 15.929 to 15.959 (0.6271 to 0.6283)
Tappet running clearance .................................. 0.041 to 0.101 (0.0016 to 0.0039)
ROCKER ARM -- VALVE DATA mm (in)
Rocker--armshaftdiameter ................................ 18.963 to 18.975 (0.7465 to 0.7470)
Rocker--armshaftseatdiameter ........................... 19.000 to 19.026 (0.7480 to 0.7490)
Rockerarmboretoshaftclearance ......................... 0.025 to 0.063 (0.0009 to 0.0024)

10 SECTION 10 -- ENGINE -- CHAPTER 1
ROCKER ARM -- VALVE DATA (continued) mm (in)
Valve clearance for normal running (engine cold):
--inletvalve.............................................. 0.300 to 0.050 (0.0118 to 0.0019)
-- exhaust valve .......................................... 0.550 to 0.050 (0.0216 to 0.0019)
Cam lift:
--inletvalve.............................................. 6.045 (0.2379)
-- exhaust valve .......................................... 7.239 (0.2849)
CYLINDER HEAD DATA mm (in)
Cylinder Head ............................................ in cast iron with fitted valve seats and
seats for injectors and thermostat valve
Maximum face re--grinding depth that can be removed from the cyl-
inder head in the event of reboring ........................... 0.130 (0.0051)
Diameter of valve stem seat in cylinder head ................. 8.019 to 8.039 (0.3157 to 0.3164)
Valvestemdiameter ...................................... 7.960 to 7.980 (0.3133 to 0.3141)
Assemblyclearancebetweenvalvestemandseat ............ 0.039 to 0.079 (0.0015 to 0.0031)
Valve seat angle in head:
-- inletvalve............................................ 60°
-- exhaust valve ........................................ 45°
Valve face angle:
-- inletvalve............................................ 60°
-- exhaust valve ........................................ 45°
Diameter on head for fitting valve seat:
-- inletvalve ............................................ 46.987 to 47.013 (1.8498 to 1.8509)
-- exhaust valve ......................................... 43.637 to 43.663 (1.7178 to 1.7190)
Valve seat insert outside diameter:
-- inletvalve ............................................ 47.063 to 47.089 (1.8528 to 1.8538)
-- exhaust valve ......................................... 43.713 to 43.739 (1.7209 to 1.7220)
Valve stand--in relative to cylinder head face:
-- inletvalve ............................................ 0.336 to 1.072 (0.0132 to 0.0422)
-- exhaust valve ......................................... 0.104 to 0.840 (0.0434 to 0.0330)
Interference between valve seat and head:
-- inletvalve ............................................ 0.050 to 0.102 (0.0019 to 0.0040)
-- exhaust valve ......................................... 0.050 to 0.102 (0.0019 to 0.0040)
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ameter:
--inletvalve.............................................. 44.870 to 45.130 (1.7665 to 1.7767)
-- exhaust valve .......................................... 41.870 to 42.130 (1.6484 to 1.6586)

SECTION 10 -- ENGINE -- CHAPTER 1 11
CYLINDER HEAD DATA (continued) mm (in)
Inlet and exhaust valve springs:
-- free length ........................................... 63.500 (2.4999)
-- length under load of 329 N ............................. 49.020 (1.9299)
-- length under load of 641 N ............................. 38.200 (1.5039)
Injector protrusion relative to head face:
Dinjectors: BOSCH DLLA 145 P 1338 --
BOSCH DSLA 145 P 1255 ............................... Not adjustable

12 SECTION 10 -- ENGINE -- CHAPTER 1
TORQUES
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Tightening torque
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Nm ft-lbs
Flywheel casing retaining bolts ...................... M 12 x 1.75 x 100 80 ±10 59 ±7
M 16 x 1.50 x 80 200 ±20 148 ±15
M 16 x 1.50 x 100 200 ±20 148 ±15
M 12 x 1.75 x 78 80 ±10 59 ±7
Oilsumpretainingbolts ............................ M 10 x 1.50 x 45 50 ±537 ±4
M 10 x 1.50 70 ±552 ±4
Oil sump threaded plugs ............................ M22x1.5 50 ±537 ±4
Rocker arm support retaining bolts ................... M8x1.25 25 ±518 ±4
Tappet cover retaining bolts ......................... M8x1.25 25 ±518 ±4
Exhaust manifold retaining bolts ..................... M 10 x 1.50 53 ±539 ±4
Intakemanifoldretainingbolts ....................... M8x1.25 25 ±518 ±4
Oilcoolerretainingbolts ............................ M8x1.25 25 ±518 ±4
Coolantpumpretainingbolts ........................ M8x1.25 25 ±518 ±4
Coolantinletmanifoldretainingbolts ................. M 10 x 1.50 45 ±10 33 ±7
Thermostatvalveassemblyretainingbolts ............ M8x1.25 25 ±518 ±4
Fan support retaining bolts .......................... M8x1.25x50
M 10 x 1.50 x 25
25 ±5
45 ±5
18 ±4
33 ±7
Injector fastener ............................ -- 60 ±544 ±7
Fuelpumpretainingbolts ........................... M8x1.25 25 ±518 ±4
Nutssecuringturbinemod .......................... M8x1.25 25 ±518 ±4
Alternatorretainingbolts ............................ M 10 x 1.50 45 ±533 ±7
Startermotorretainingbolts......................... M 10 x 1.50 55 ±541 ±7
Camshaftplateretainingbolts ....................... M8x1.25 25 ±518 ±4
Injectionpumpretainingbolts ....................... M8x1.25 12 ±5 9 ±4
Oil pump gear casing retaining bolts .................. M8x1.25 25 ±518 ±4
Additional counterweight retaining bolts ............... M10x1.5 48 ±835 ±6
Camshaft gear retaining bolts ........................ M8x1.25 36 ±427 ±3

SECTION 10 -- ENGINE -- CHAPTER 1 13
TORQUE SETTINGS WITH ANGLE
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Tightening torque
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Nm ft-lbs
A
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Main bearing cap bolts
phase 1 M12x1.5 50 ±637 ±4--
phase 2 M12x1.5 80 ±659 ±4--
phase 3 M12x1.5 -- -- 90°±5°
Big end cap bolts
phase 1 M 10 x 1.25 30 ±522 ±4--
phase 2 M 10 x 1.25 50 ±537 ±4--
phase 3 M 10 x 1.25 -- -- 60°±5°
Cylinder head bolts ....................... M 12 x 1.75 x 70 50 ±537 ±490°
M 12 x 1.75 x 140 40 ±530 ±4180°
M 12 x 1.75 x 180 70 ±552 ±4180°
Boltsfasteningpulleyoncrankshaft .......... M 12 x 1.25 50 ±537 ±490°±5°
Engine flywheel retaining bolts ............. M 12 x 1.25 30 ±522 ±460°±5°

14 SECTION 10 -- ENGINE -- CHAPTER 1
SPECIAL TOOLS
WARNING
The operations described in this section can only
be carried out with ESSENTIAL tools indicated
by an (X).
To work safely and efficiently and obtain the best
results, it is also necessary to use the recom-
mended specific tools listed below and certain
other tools, which are to be made according to
the drawings included in this manual.
List of specific tools required for the various
operations described in this Section.
X 380000216 Engine removal and installation
tool.
380000220 Clamp for fitting piston in cylin-
der liner 2.3622--4.9212 in.
(60--125 mm).
X 380000221 Pliers for piston ring disassem-
bly and reassembly
2.5590--4.3307 in.
(65--110 mm).
380000301 Rotating stand for overhaul op-
erations (capacity 1000 daN,
torque 120 daN/m).
X 380000302 Tool for engine valve disassem-
bly and reassembly.
380000304 Pair of gauges for angular tight-
ening with 1/2” and 3/4” square
connection.
380000362 Crankshaft lifting tool.
X 380000364 Dial gauge base for various
measurements (use with
380000228).
380000569 Movable tool for dismantling
tractors with bracket 380000500
and adapter plate 380000844.
X 380000661 Engine mounting brackets for
rotating stand 380000301.
X 380000663 Tool to extract crankshaft rear
seal.
X 380000664 Splining tool for fitting rear seal
on crankshaft.
X 380000665 Tool to extract crankshaft front
seal.
X 380000666 Splining tool for fitting front seal
on crankshaft.
X 380000667 Drift for camshaft bushing dis-
assembly and reassembly (use
with 380000668).
380000668 Grip for interchangeable drifts.
X 380000669 Gasket extraction tool.
X 380000670 Tool for cartridge filter disas-
sembly.
380000671 Injector extraction tool.
380000975 Box with full set of tools to re-
grind valve seats.
380000976 Spring load test appliance.
380001003 Complete square to check for
connecting rod distortion.
380001268 Belt tension gauge.
Injection pump bench test.
380000228 Dial gauge 0--5 mm
(0--019.68 in).
X 380000914 Dial--gauge holder tool for rotary
injection pump timing (use with
380000228).
X 380000732 Tool for engine flywheel rotation
(use with 380000988).
X 380000988 Plate for engine flywheel rota-
tion tool with flywheel timing pin
(use with 380000732).

SECTION 10 -- ENGINE -- CHAPTER 1 15
SECTIONAL VIEWS
MIF1097A
1
View of Farmall 90 tractor engines of 65 kW (88 HP) and Farmall 95 of 70 kW (95 HP)

16 SECTION 10 -- ENGINE -- CHAPTER 1
MIF1098A
Oil path under pressure
Oil return path under gravity
2
Lubrication diagram for engines mod. Farmall 90 and Farmall 95
Forced--circulation lubrication is accomplished by
the following components:
-- oil pump, housed at the front of the crankcase,
driven by the grooved bushing keyed onto the
shank of the crankshaft;
-- water / oil cooler, housed in the crankcase;
-- oil pressure control valve incorporated in the
cooler assembly;
-- by--pass valve to cut off clogged oil filter, incorpo-
rated in the cooler assembly;
-- cartridge oil filter.

SECTION 10 -- ENGINE -- CHAPTER 1 17
MIF1099A
Coolant recirculating in the engine
Coolant entering the pump
3
Cooling system diagram
The forced circulation, closed--circuit engine cooling
system is composed of the following components:
-- a lubricating oil cooler;
-- a centrifugal coolant pump housed at the front of
the crankcase;
-- a thermostat valve governing coolant circulation.

18 SECTION 10 -- ENGINE -- CHAPTER 1
MIF1101A
4
Detail of cylinder head with valve seats fitted in engines mod. Farmall 90, Farmall 95
1. Exhaust manifold
2. Intake manifold
3. Air heater
4. Fitted valve seats
5. Thermostat valve
6. Injector

SECTION 10 -- ENGINE -- CHAPTER 1 19
MIF1102A
5
Additional counterweights
1. Retaining bolts
2. Support
3. Retaining bolts
4. Gear
5. Balancing weight
6. Half bearings
7. Counter--shaft
8. Gear
9. Ring
10. O--Ring

20 SECTION 10 -- ENGINE -- CHAPTER 1
TROUBLESHOOTING
Problems Possible Causes Solutions
Engine does not start. 1. Batteries partially discharged. Check and recharge batteries. Re-
place if necessary.
2. Battery terminal connections cor-
roded or loose.
Clean, inspect and tighten terminal
nuts. Replace terminals and nuts if
excessively corroded.
3. Injection pump timing incorrect. Adjust injection pump timing.
4. Impurities or water in fuel lines. Disconnect fuel lines from injection
pump and clean thoroughly. If neces-
sary clean and dry the fuel tank.
5. No fuel in tank. Fill tank.
6. Fuel supply pump malfunction. Check and replace pump if neces-
sary.
7. Air in fuel system. Check fuel lines, unions, supply
pump, filters and injection pump for
air; then bleed the air from the circuit.
8. Starter motor faulty. Repair or replace starter motor.
9. Thermostarter faulty. Check and replace thermostarter if
necessary.
Engine stalls. 1. Idle speed too low. Adjust idle speed.
2. Injection pump delivery irregular. Check injection pump delivery on test
bench.
3. Impurities or water in fuel lines. Disconnect fuel lines from injection
pump and clean thoroughly. If neces-
sary clean and dry the fuel tank.
4. Fuel filters clogged. Replace the filter cartridges.
5. Incorrect valve -- rocker arm
clearances.
Adjust the clearance between the
rocker arms and the valves.
6. Burnt or cracked valves. Replace the valves.
7. Air in fuel system. Check fuel lines, unions, supply
pump, filters and injection pump for
air; then bleed the air from the circuit.
8. Injection pump drive mechanism
damaged.
Replace damaged parts.