This is a very practical manual

1. Massey Ferguson
231 TRACTOR - 651602 651602
Engine Page010-0000

2. MF 231 TRACTOR - 651602
5681001A
22 43
2
18
51 53
49 52
50 54
16 15
39
14 40
41
31
20
69
38
6
9
34
8
71
3521 3633
3210
45
25
11
27
28
29
3
47
68
4 67
65
62
63
63
61
64
17
42
37
44
72
26
74
73
12
66
70
48
7
5
Ref 00500001-1 Page 010-0005

3. Massey Ferguson
231 TRACTOR - 651602 651602
Cylinder Block Page010-0005
Item Part Number Qty Description Comments
1665859M91 1 Engine (AD3-152 CPT)
1 1076960M91 1 Block (STRIPPED)
2 739043M1 3 Liner (1)
(CAST IRON)
3 3641737M1 8 Plug (1)
4 1476051X1 6 Screw (1)
9/16X3-19/32"
1476049X1 2 Screw (1)
9/16X4-19/32"
5 731354M1 4 Plug (1)
1-1/4" CUP
6 731355M1 1 Plug (1)
57/64" CUP
7 1447053M1 2 O Ring (1)
3/4 X .070"THK
8 738808M1 1 Plug (1)
13/16" CUP
9 733855M1 2 Plug (1)
13/32" CUP
10 731354M1 4 Plug (1)
1-1/4" CUP
11 731356M1 2 Plug 11/16" CUP
12 736613M1 1 Plug 1/2" PHILLIPS
14 734308M1 4 Stud [A,C]
7/16 X 3-5/8"
15 1476245X1 4 Nut [A,C]
7/16" HEX
16 1476087X1 4 Screw [B,C]
7/16 X 3-1/4"
17 1476086X1 9 Screw 7/16 X 3-7/8"
18 742271M1 3 Stud 7/16 X 4-5/16"
734308M1 2 Stud 7/16 X 3-5/8"
20 3641399M91 1 Head Gasket [D]
21 1851764M1 1 Cock
22 1476245X1 5 Nut 7/16" HEX
25 4222461M1 1 Gasket [D]
26 731211M2 1 Connector
27 353446X1 2 Lock Washer 5/16"
28 731651M1 2 Stud
29 353916X1 2 Nut Unf 5/16" HEX
31 731344M1 2 Dowel
32 747383M91 1 Housing
33 1447691M1 1 Seal
34 3641894M1 1 Joint [D]
35 353518X1 9 Screw Unf 5/16 X 7/8"HEX
36 353770X1 9 Washer 5/16" HEAVY
37 731208M1 1 Housing
38 3641884M1 1 Joint [D]
39 636762M1 1 Seal 7/8X1-3/8X1/4"
40 735889M1 1 Connection
41 736091M1 1 Cap Nut
42 636762M1 1 Seal
43 741401M1 1 Plate
44 732902M1 1 Plug
45 354074X1 1 Pin 3/16 X 3/4"
47 740732M1 1 Stud 5/8 X 5-7/8"
48 377127X1 X Shim (.036")
365691X1 X Shim (.010")
365690X1 X Shim (.005")
377126X1 X Shim (.002")
49 731647M1 3 Stud 5/16 X 1-1/4"
50 353446X1 3 Lock Washer 5/16"
51 353916X1 3 Nut Unf 5/16" HEX
52 353538X1 6 Screw Unf 3/8 X 1" HEX
53 358005X1 2 Screw 3/8 X 1" SCKT.
54 353434X1 6 Lock Washer 3/8"
61 731344M1 X Dowel
62 3019858X1 X Bolt Metric M12-1.75X35MM
63 391198X1 X Hex. Sock. Screw M12-1.75X55MM
64 391955X1 X Bolt M12-1.75X70MM
65 3009794X1 X Bolt Metric M12-1.75X70MM

4. Massey Ferguson
231 TRACTOR - 651602 651602
Cylinder Block Page010-0005
Item Part Number Qty Description Comments
66 3019857X1 X Bolt Metric M12-1.75X90MM
67 339369X1 X Lock Washer M12
68 1440204X1 X Nut Metric M12-1.75 HEX
69 738821M1 2 Plug 7/8" CUP TYPE
W/3/8" HOLE
70 738820M1 2 Plug 7/8" CUP TYPE
W/3/8" HOLE
71 731651M1 4 Stud 5/16 X 1-1/8"
72 731312M1 2 Dowel 3/8 X 9/16"
73 22226X 1 Bush 1/4 X 1/8"
74 355547X1 1 Plug 1/8" P.T.
FOOTNOTE [A] USED ENGINE SERIAL NUMBER 147203 AND UP, SEE NOTE "C".
FOOTNOTE [B] USED PRIOR TO ENGINE SERIAL NUMBER 147203, SEE NOT E "C".
FOOTNOTE [C] REFER TO SERVICE BULLETIN TR 89-86 DATED 12/21/89.
FOOTNOTE [D] NON-ASBESTOS

5. MF 231 TRACTOR - 651602
5681002A
32
23
23
33
3
4 5
2
24
24
31
15
1
8 14
14
12
12
12
12
19
10
6
7 9
17
17
18
11
22 16
1621
40
47
34
30
Ref 00800001-1 Page 010-0010

6. Massey Ferguson
231 TRACTOR - 651602 651602
Crankshaft Page010-0010
Item Part Number Qty Description Comments
1 1076958M91 1 Crank
2 3638565M1 2 Weight (1)
3 353570X1 4 Bolt Unf (1)
7/16X2-3/4"HEX
4 733644M1 2 Washer (1)
(R.H. TAB)
5 733645M1 2 Washer (1)
(L.H. TAB)
6 731227M1 1 Spacer (1)
7 3641826M1 1 Gear (1)
Replace and repair. Old not interchangeable with new 3641085M1
8 731076M1 1 Key (1)
9 746156M91 1 Kit, Bearing (MAIN STD.)
10 1 Insert (9)
(FRONT UPPER)
Not serviced,order REF 9
11 1 Insert (9)
(FRONT LOWER)
Not serviced,order REF 9
12 4 Insert (9)
INTERMEDIATE
Not serviced,order REF 9
14 2 Insert (9)
(REAR)
Not serviced,order REF 9
15 1076967M91 1 Insert (CONN. STD.)
16 735113M1 2 Washer (LOWER)
17 735112M1 2 Washer (UPPER)
18 745057M1 1 Washer
19 745773M1 1 Pulley (CRANKSHAFT)
21 1476107X1 1 Screw
22 731376M1 1 Washer
23 735800M1 X Washer (+.007"UPPER)
24 735801M1 X Washer (+.007"LOWER)
30 740681M91 1 Flywheel
31 731008M1 1 Annular Gear (30)
(RING)
32 353595X1 6 Screw Unf 1/2X1-1/2" HEX
33 3819725M1 6 Washer (33/64" SPL)
Replace and repair. Old interchangeable with new 745365M1
34 828123M2 1 Bearing Assy (PILOT)
40 746157M91 X Kit, Bearing (-.010" MAIN)
746158M91 X Kit, Bearing (-.020" MAIN)
1076966M91 X Insert (-.030" MAIN)
47 737067M91 X Kit, Bearing (-.010" CONN)
737068M91 X Kit, Bearing (-.020" CONN)
737069M91 X Kit, Bearing (-.030" CONN)

7. MF 231 TRACTOR - 651602
5681003A
62
1 1
1
11
6
6
6
10
32 5
5
33 34
2
2
61
61
61
40
36
41
29 15 16
1125 35
7
8
58
80
37
98
19
8918
50
56
56
17 14
30
51
34
2120
53
24
23
55
28
54
60
64
43 44
45 45
46 46
47
Ref 00653001-1 Page 010-0015

8. Massey Ferguson
231 TRACTOR - 651602 651602
Camshaft Page010-0015
Item Part Number Qty Description Comments
1 739477M1 1 Housing
2 739447M91 1 Filler
3 734962M91 1 Cap (2)
4 4222913M1 1 Gasket [B]
(3)
5 353517X1 2 Screw Unf 5/16 X 3/4"HEX
6 732575M1 2 Washer 5/16" ALUMINUM
7 731214M1 1 Cover
8 3639209M1 2 Screw 5/16X1-3/8"HEX
9 353446X1 2 Lock Washer 5/16"
10 4222912M1 1 Gasket [B]
11 734638M1 14 Shim 21/64" FLAT
14 1076972M91 1 Cover (FRONT)
ALSO INCL20-24
15 746380M1 1 Spring (14)
16 1476244X1 1 Rivet (14)
5/32X9/32"CTSK
17 1447689M1 1 Oil Seal (14)
18 353676X1 1 Screw Unc 5/16 X 5/8"HEX
19 22666X 1 Nut N10-32 HEX
20 1 Plate [A]
21 4222114M1 1 Gasket [B]
23 353666X1 6 Screw Unc 1/4 X 5/8" HEX
24 376077X1 6 Washer 17/64" FLAT
25 375701X1 1 Bolt 5/16X1-1/8"HEX
28 3641895M1 1 Joint [B]
29 735220M1 1 Spacer
30 376611X1 1 Stud 5/16X1-1/4"NC
32 733507M1 1 Camshaft
33 731203M1 1 Gear
34 731204M1 1 Hub
35 731368M1 1 Dowel 3/16 X 1/2"
36 731205M2 1 Gear
37 4222231M1 1 Plate Replace and repair. Old not interchangeable with new 731206M1
38 731207M1 1 Washer
40 4222914M1 1 Gasket [B]
41 734172M1 1 Plate
43 354270X1 1 Bolt Unc 3/8X2-5/8" HEX
44 354273X1 1 Bolt Unc 3/8 X 3" HEX
45 353434X1 2 Lock Washer 3/8"
46 354123X1 2 Nut 3/8" HEX
47 4222913M1 1 Gasket
50 353667X1 X Screw Unc 1/4 X 3/4" HEX
353668X1 X Screw Unc 1/4 X 7/8"HEX
51 344107X1 X Washer 1/4"
52 353441X1 X Lock Washer 1/4"
53 375804X1 X Bolt 5/16X13/16"HEX
54 375732X1 X Screw 5/16 X 3/4"HEX
55 353678X1 X Screw Unc 5/16 X 7/8"HEX
56 353680X1 X Screw Unc 5/16X1-1/8"HEX
58 354498X1 X Bolt Unf 5/16X3-3/8"HEX
60 1650484M1 X Washer 5/16"
61 353446X1 X Lock Washer 5/16"
62 353916X1 X Nut Unf 5/16" HEX
63 375764X1 X Bolt 1/2X2-5/8" HEX
64 353525X1 X Bolt Unf 5/16X1-3/4"HEX
FOOTNOTE [A] ORDER (1) 747744M1 COVER (2) 3637719M1 BOLTS (4) 3 53666X1 BOLTS AND (6) 353441X1 WASHERS.
FOOTNOTE [B] NON-ASBESTOS

9. MF 231 TRACTOR - 651602
5681004A
1
14
15
216
312
17
18
10
20
21
19
27
22
Ref 00550001-1 Page 010-0020

10. Massey Ferguson
231 TRACTOR - 651602 651602
Connecting Rod Page010-0020
Item Part Number Qty Description Comments
1 1076968M92 3 Piston
2 1 Pin (1)
USE 1076968M91
3 375709X1 1 Ring (1)
(3/64" THK)
10 739043M1 3 Liner (CAST IRON)
12 745826M91 3 Kit, Piston Ring SINGLE PISTON
14 1 Ring (12)
(1ST. GROOVE)
USE 745826M91
15 1 Ring (12)
(2ND. GROOVE)
USE 745826M91
16 1 Ring (12)
(3RD. GROOVE)
USE 745826M91
17 1 Ring (12)
(OIL CONTROL)
USE 745826M91
18 1 Ring (12)
(EXPANDER)
USE 745826M91
19 1076961M91 3 Rod
20 740407M1 1 Bearing (19)
21 375756X1 2 Bolt (19)
7/16X2-3/4"SPL
22 1476245X1 2 Nut (19)
7/16" HEX SPL
27 1076967M91 1 Insert (STD. CONN.)
737067M91 X Kit, Bearing (-.010"CONN.)
737068M91 X Kit, Bearing (-.020"CONN.)
737069M91 X Kit, Bearing (-.030"CONN.)

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12. MF 231 TRACTOR - 651602
5681005A
14
12
73
73
3 5410
72
72
6
82 11
7
86
88
2
1
87
70
9
84
81
85 8
83
71
34
68
44 32
32
4169 30
2945
22
2546
35
47
23 33
48
49
2850
51
58
20
43
4221
24
26
Ref 00750001-1 Page 010-0025

13. Massey Ferguson
231 TRACTOR - 651602 651602
Cylinder Head Page010-0025
Item Part Number Qty Description Comments
1 1076959M91 1 Head
2 366947X1 2 Plug (1)
1/2"P.T. SCKT.
3 747754M1 1 Plate (1)
4 4222004M1 1 Gasket (1)
5 353517X1 6 Screw Unf (1)
5/16 X 3/4"HEX
6 353446X1 6 Lock Washer (1)
5/16"
7 4223519M1 6 Guide (1)
Replace and repair. Old not interchangeable with new 732445M1
8 739060M1 3 Valve Inlet (1)
9 747581M1 3 Valve Exhaust (1)
10 731154M1 6 Spring (1)
11 736185M1 6 Washer (1)
(LOWER)
12 747697M1 6 Cap (1)
14 736453M1 6 Cotter (1)
(SPLIT/PAIR)
20 1076971M91 1 Shaft
21 731330M1 2 Plug (20)
13/32" CUP
22 3638185M1 3 Lever (RIGHT)
23 3638184M1 3 Lever (LEFT)
24 731262M1 2 Spring (FRONT&REAR)
25 731263M1 1 Spring (CENTER)
26 731140M1 4 Bracket
28 731261M1 5 Spacer
29 742191M91 1 Pipe
30 22113X 1 Nut Unf (29)
3/8" HEX
31 827276M1 1 Olive (29)
32 353213X1 2 Snapring 37/64 X 1/32"
33 364299X1 1 Union 3/8"NFX1/8"PT.
34 357558X1 4 Nut 3/8" HEX LOCK
35 1447719M1 1 Pin
41 390734X1 4 Washer 10.5X21X2MM
42 1476274X1 2 Stud 3/8X2-7/8" NF
43 746622M1 2 Stud 3/8X3-5/8" NF
44 740760M91 1 Cover
45 735057M1 1 Joint
46 832714M1 2 Clamp
47 740497M1 1 Pipe
48 740752M1 2 Clip
49 733519M1 1 Stud 5/16 X 1"NC-NF
50 353446X1 1 Lock Washer 5/16"
51 353916X1 1 Nut Unf 5/16" HEX
58 742216M1 1 Spring
68 1075393M1 X Washer
69 1075392M1 X Washer
70 353916X1 X Nut Unf 5/16" HEX
71 375721X1 X Nut 5/16" SPL.
72 353434X1 X Lock Washer 3/8"
73 353431X1 X Nut Unf 3/8" HEX
81 731381M1 2 Stud 3/8X1-1/8" NF
82 731323M1 2 Stud 3/8X1-3/16" NF
83 731150M1 6 Tappet
84 3638112M1 6 Screw
85 353430X1 6 Nut Unf 3/8" HEX
86 390734X1 2 Washer 10.5X21X2MM
87 743258M1 4 Stud 5/16X1-5/8" NF
88 353770X1 4 Washer 5/16" HEAVY

14. MF 231 TRACTOR - 651602
5681006A
37
37
18
18
18
3215 33
33
52
52
19
19
19
50
12 17
59
1653
49
14
27
36
35 26
31
29
2439
38 21
23
40
40
20
5
43 42
45
44
3
62 46
54 1
56
60
60
9
61
34
28
2
11
55
51
25
22
6
4
58
57
7
30
Ref 04400001-1 Page 010-0030