the best repair manual

1. MF 175/178 TRACTORS (GB) - 819537
24 8
14
27
3
15
28
4
5 30 31 32 33 58
21 26
7
17
19 18
45
43
44
40
6 16
3429
2
53
54
55
57
56
25
20
47
46
41
39
42
23
22
Ref 3 Page 3

2. MASSEY FERGUSON
MF 175/178 TRACTORS (GB) - 819537 819537
CYLINDER BLOCK - A4.236 3
Item Part Number Qty Description Comments
A4.236
1 90066 1 Cylinder
Block
92877 1 Cylinder
Block
* (A)
2 1 Not serviced, order 85880
3 33142111 10 Thimble
4 32181434 10 Setscrew
5 31358341 4 Liner
6 0650563 6 Plug
7 0650563 2 Plug
8 0650618 4 Plug
14 32161114 1 Plug * (F)
15 0760001 10 Shim
16 0650588 2 Plug
17 32416105 1 Plug
18 0650582 1 Plug
19 0920130 1 Washer
20 32715119 1 Pin
21 32417133 1 Plug
22 0746252 1 Screw (B)
23 2411152 1 Washer (B)
24 0650577 4 Plug
25 0650588 1 Plug
26 32417134 1 Plug
27 31134132 1 Bush
28 0201396 1 Union
29 31419 1 Cock
30 36812338 1 Gasket
31 32526311 12 Stud
32 32526312 8 Stud
33 32526313 2 Stud
34 0826481 3 Stud (E)
39 59537 1 Kit, Housing
40 1 Not serviced, order 59537
41 1 Not serviced, order 59537
42 36883108 2 Seal
43 0096238 2 Bolt
44 0920053 2 Washer
45 36817136 1 Joint
46 0746211 11 Bolt
47 0920053 11 Washer
53 36277831 1 Bridge Piece
54 36841114 2 Gasket (C)
55 32811408 2 Joint
56 2176319 2 Screw
57 0920521 2 Washer
58 20245 1 Short Engine (D)
(A)
USED WITH PUMP 2641711, JOINT 36851113, STUD 08262 22, NUT 33221115,
AND PLATE 36241316.
(B)
USED WITH EARLY BLOCK 83141
(C)
NO LONGER REQUIRED ON THIS APPLICATION
(D)
FIT ALSO CAMSHAFT 31415292 AND TIMING GEAR HOUSING 37161642
Up to Serial or Engine Number 4800693
(E)
From Serial or Engine Number 236UA32103
(F)
USE ONLY WITH 86389/87496/90066
Ref 3 Page 3

3. MF 175/178 TRACTORS (GB) - 819537
44
46
46
45
4748
49
39
59
59
59
58
58
57 50
56
42 43
41
27
5
4
67
66
66
70
6
7
7
17
16
13
14
15
29
28
40
40
38
1
11
12
3
2
8
21
20
30
32
18
19
31
9
Ref 7 Page 7

4. MASSEY FERGUSON
MF 175/178 TRACTORS (GB) - 819537 819537
CYLINDER HEAD - A4.236 7
Item Part Number Qty Description Comments
A4.236
1 86608 1 Cylinder Head (U)
2 1 Not serviced, order 86608
3 0650563 1 Plug
4 2431154 2 Plug (Y)
5 0650203 1 Plug (A)
6 2411157 1 Washer (A)
7 37553121 1 Cover
8 36851409 1 Joint
9 0746254 6 Setscrew
10 0920053 6 Washer
11 31431641 4 Valve Inlet (L)
12 31431322 X Valve (B, L, P) + 0.003"
11 31431323 X Valve (B, L, P) + 0.015"
31431324 X Valve (B, L, P) + 0.030"
12 31431104 4 Valve Exhaust (M)
31431332 X Valve (B, M, P) + 0.003"
31431333 X Valve (B, M, P) + 0.015"
31431334 X Valve (B, M, P) + 0.030"
13 0780272 8 Spring
14 33123117 8 Washer
15 2415304 8 Seal (X)
16 33423122 8 Cap
17 33173108 8 Cotter (N)
18 33817402 4 Deflector (C)
33817405 8 Deflector (E, W)
19 33123117 8 Washer (D)
20 33421408 8 Collar (F, K)
33421409 X Deflector (G, K) + 0.003"
33421411 X Deflector (H, K) + 0.015"
33421412 X Deflector (J, K) + 0.030"
21 33221316 22 Nut
27 36475706 1 Plate
28 0746453 1 Setscrew
29 0920054 1 Washer
30 36177111 1 Plate
31 0746453 1 Setscrew
32 0920054 1 Washer
38 37748201 1 Housing (Q)
37762701 1 Body (R)
39 2485791 1 Pin
40 36853514 1 Joint
41 0826467 1 Stud
42 0576051 1 Nut
43 0920054 1 Washer
44 0096434 2 Bolt
45 0096439 1 Bolt
46 0920054 3 Washer
47 0746255 2 Setscrew
48 0096238 1 Bolt
49 0920053 3 Washer
50 2485685 1 Thermostat (Q)
2485659 1 Thermostat (R)
56 37746642 1 Connection (Q)
37746643 1 Connection (R)
57 36862149 1 Joint (Q)
36862151 1 Joint (R)
58 0096433 2 Bolt
59 0920054 2 Washer
65 37781333 1 Exhaust
Manifold
(T)
66 36862134 2 Joint
67 0826490 2 Stud (S)
68 0826410 2 Stud
69 2211224 4 Nut
70 0826627 3 Stud
71 0826510 1 Stud (V)
(A)
INCLUDED IN 86588 BUT NOT REQUIRED ON THIS APPLICA TION
(B)
Ref 7 Page 7

5. MASSEY FERGUSON
MF 175/178 TRACTORS (GB) - 819537 819537
CYLINDER HEAD - A4.236 7
Item Part Number Qty Description Comments
THE APPROPRIATE DEFLECTORS MUST ALSO BE FITTED
From Serial or Engine Number 4805664
Up to Serial or Engine Number 236UA19816
(C)
USED WITH 33123117
Up to Serial or Engine Number 4805663
(D)
Up to Serial or Engine Number 4805663
SEE NOTE K
(E)
USED WITH 33421408, 33421409, 33421411, 33421412
(F)
From Serial or Engine Number 4805664
Up to Serial or Engine Number 236UA19816
USED WITH 31431103 AND 31431104
(G)
From Serial or Engine Number 4805664
Up to Serial or Engine Number 236UA19816
USED WITH 31431322 AND 31431332
(H)
From Serial or Engine Number 4805664
Up to Serial or Engine Number 236UA19816
USED WITH 3141323 AND 31431333
(J)
From Serial or Engine Number 4805664
Up to Serial or Engine Number 236UA19816
USED WITH 31431323 AND 31431334
(K)
MAY BE FITTED UP TO ENGINE NO. 4805663 WITH RELEVA NT VALVE
PROVIDING 33817405 IS ALSO FITTED
(L)
INLET VALVE
(M)
EXHAUST VALVE
(N)
SERVICED IN MATCHED PAIRS
(P)
NOT INCLUDED IN ASSEMBLY
(Q)
Up to Serial or Engine Number 236UA12629
(R)
From Serial or Engine Number 236UA12630
(S)
2 OFF WHEN USED WITH 37781332 UP TO ENGINE NO. 236 UA35607
(T)
From Serial or Engine Number 236UA35608
Up to Serial or Engine Number 236UA35607
USE 37781333 AND 0826510
(U)
From Serial or Engine Number 236UA28431
Up to Serial or Engine Number 236UA28430
USE 86588, 35511111 AND 33811113
(V)
From Serial or Engine Number 236UA35608
(W)
Up to Serial or Engine Number 236UA19816
(X)
From Serial or Engine Number 236UA19816
(Y)
Up to Serial or Engine Number 236UA51930
Ref 7 Page 7

6. MF 175/178 TRACTORS (GB) - 819537
45
46
47
44
40
43 42
41
28
29
30
32
2
18
21
22
20
10
11
19 17
5
5
7
4
4
6
3
1
57
56
55 54
53
8
31
33
9
48
Ref 12 Page 12

7. MASSEY FERGUSON
MF 175/178 TRACTORS (GB) - 819537 819537
CRANKSHAFT - A4.236 12
Item Part Number Qty Description Comments
A4.236
1 84422 1 Kit, Crankshaft
2 1 Not serviced, order 84422
3 81558 1 Kit, Bearing (A)
81558A X Kit, Bearing (A, B) - .010"
81558B X Kit, Bearing (A, B) - .020"
81558C X Kit, Bearing (A, B) - .030"
4 4 ORDER ASSEMBLY
5 4 ORDER ASSEMBLY
6 1 ORDER ASSEMBLY
7 1 ORDER ASSEMBLY
8 85042 1 Kit, Bearing (A)
85042A X Kit, Bearing (A, B) - .010"
85042B X Kit, Bearing (A, B) - .020"
85042C X Kit, Bearing (A, B) - .030"
9 8 ORDER ASSEMBLY
10 31137175 2 Washer (C)
31137311 2 Washer
31137312 X Thrust Washer (B) + .007"
11 31137181 2 Washer (C)
31137321 2 Washer
31137322 X Thrust Washer (B) + .007"
17 31171681 1 Gear
18 0500012 1 Woodruff Key
19 33157523 1 Flange
20 31148791 1 Pulley
21 32162318 1 Screw
22 33125124 1 Washer
28 84920 4 Conrod
29 1 ORDER ASSEMBLY
30 1 ORDER ASSEMBLY
31 32762116 2 Bolt
32 2211156 2 Nut
33 31134123 1 Bush
40 82878 4 Kit, Piston
41 1 Not serviced, order 82878
42 1 Not serviced, order 82878
43 0170002 2 Circlip
44 83388 X Kit, Ring
83388C X Kit, Ring .030"
45 1 ORDER ASSEMBLY
46 2 ORDER ASSEMBLY
47 2 ORDER ASSEMBLY
48 X Kit, Ring (D)
53 0999965 1 Flywheel * (E)
41117096 1 Flywheel * (F)
54 1 Not serviced, order 0999965
55 0410236 1 Starter Ring
56 32162203 6 Screw
57 0921062 3 Tab Washer
(A)
BEARINGS ARE PRE-FINISHED
(B)
NOT INCLUDED 84422
(C)
NOT REQUIRED FOR THIS APPLICATION
(D)
FOR ENGINES WITH WORN C.I LINERS, UP TO 2,300 R.P. M.
(E)
Up to Serial or Engine Number 236 UA 76650
(F)
From Serial or Engine Number 236 UA 76651
Ref 12 Page 12

8. MF 175/178 TRACTORS (GB) - 819537
1
5
3
4
40
41
39
21
22
19
2
20
27
25
28
29
31
30
23
24
48
47
34
14
14
13
12
35
32
33
26
11
11
9
10
Ref 16 Page 16

9. MASSEY FERGUSON
MF 175/178 TRACTORS (GB) - 819537 819537
CYLINDER HEAD COVER - A4.236 16
Item Part Number Qty Description Comments
A4.236
1 37188549 1 Cyl.Head Cover
2 36811122 1 Joint
3 2174018 4 Screw
4 0920002 4 Washer
5 0920052 4 Washer
9 33872516 1 Pipe * (F)
10 35731144 1 Connection * (F)
11 2481802 2 Clip * (F)
12 35732516 1 Pipe (E)
13 0202058 1 Hose (E)
14 0180103 2 Clip (E)
19 87618 1 Shaft (A)
20 83450 1 Shaft
21 1 ORDER ASSEMBLY
22 0650507 2 Plug
23 33117415 2 Washer
24 0170151 2 Circlip
25 31744123 2 Spring
26 31743108 2 Spring
27 37521301 4 Bracket
28 37371281 4 Lever Right Hand
29 37371271 4 Lever Left Hand
30 0720519 8 Screw
31 0576052 8 Nut
32 35511111 1 Pipe (B)
33 0726504 1 Setscrew
34 2415801 1 O Ring (C)
35 33811113 1 Olive (D)
39 0826628 4 Stud
40 2211284 4 Nut
41 0920006 4 Washer
47 31434307 8 Pushrod
48 31434162 8 Tappet
(A)
From Serial or Engine Number 236UA28431
Up to Serial or Engine Number 236UA28430
USE 87618, 35511111 AND 33811113
(B)
From Serial or Engine Number 236UA28431
Up to Serial or Engine Number 236UA28430
USE 35511111 AND 33811113
(C)
USED ONLY WITH 35511109
(D)
USED ONLY WITH 35511111
(E)
Up to Serial or Engine Number 236UA52025
(F)
From Serial or Engine Number 236UA52026
Ref 16 Page 16

10. MF 175/178 TRACTORS (GB) - 819537
7
8
18
2
11
12
1
3 6
4
5
10
9
Ref 19 Page 19

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12. MASSEY FERGUSON
MF 175/178 TRACTORS (GB) - 819537 819537
AIR INDUCTION - A4.236 19
Item Part Number Qty Description Comments
A4.236
1 37787651 1 Induct.Manifold
2 0650204 1 Plug
3 36862132 1 Joint
4 36862133 1 Joint
5 36862131 1 Joint
6 0826403 1 Stud
7 0576051 1 Nut
8 0920054 1 Washer
9 0096439 1 Bolt
10 0920054 1 Washer
11 0746424 4 Bolt
12 0920054 4 Washer
18 1854050 1 Heater (A)
(A)
SERVICED BY MESSRS. C.A.V. LTD.
Ref 19 Page 19

13. MF 175/178 TRACTORS (GB) - 819537
4
5 7
6
8
3
9
2
74
74
75
6564
67
66
86 87
87
77 84
78
63
85
76
62
68
21
21
29
29
31
31
31
27
20
20
20
17 1716
15
30
19
39 40
38
41
37 43 42
48
53
54
55
52
51
50
49
1
Ref 20 Page 20

14. MASSEY FERGUSON
MF 175/178 TRACTORS (GB) - 819537 819537
TIMING GEAR - A4.236 20
Item Part Number Qty Description Comments
A4.236
1 31415292 1 Camshaft
2 31171353 1 Gear
3 0500012 1 Woodruff Key
4 32161209 1 Screw
5 33115408 1 Washer
6 33153128 1 Washer
7 31733121 1 Washer
8 33153121 1 Washer
9 0610844 1 Dowel
15 41115023 1 Idler
16 1 Not serviced, order 41115023
17 0050345 2 Bush
18 0450035 1 Hub
19 0941082 1 Plate
20 0826475 3 Stud (E)
0096439 3 Bolt (F)
21 0576104 3 Nut (E)
0921246 1 Washer (F)
27 37161641 1 Case (A)
37161642 1 Housing (B)
28 36814123 1 Joint
29 0746255 8 Setscrew
30 0746211 1 Bolt
31 0920053 9 Washer
37 37556148 1 Plate
38 0748526 1 Screw (C)
0748505 1 Screw (D)
39 2238153 1 Nut
40 0920054 1 Washer
41 2232151 2 Screw
42 2238153 2 Nut
43 0920054 2 Washer
48 35784117 1 Filler
49 1 Not serviced, order 35784117
50 2487854 1 Cap
51 1 Not serviced, order 2487854
52 24870001 1 Joint
53 36862138 1 Joint
54 2176534 2 Screw
55 2411152 2 Washer
62 37166401 1 Cover
63 2414324 1 Seal
64 32413415 1 Cover
65 33825419 1 Joint
66 0746252 4 Screw
67 2411152 4 Washer
68 36813137 1 Joint
74 0746255 13 Setscrew
75 0920053 9 Washer
76 2411152 4 Washer
77 0096238 4 Bolt
78 0920053 4 Washer
84 2758347 1 Drive
85 0746019 1 Screw
86 0746053 1 Bolt
87 2411151 2 Washer
(A)
USED WITH EARLY BLOCK 83141
(B)
USED WITH BLOCK 83911
(C)
Up to Serial or Engine Number 4805398
(D)
From Serial or Engine Number 4805399
(E)
Up to Serial or Engine Number 4813126
(F)
From Serial or Engine Number 4813127
Ref 20 Page 20

15. MF 175/178 TRACTORS (GB) - 819537
33
32
34 35 36 21
24
30
27 26 28
22
23
63
63
63
62
60
14
15
18
16
4
1
9
9
8
8
8
7
5
6
10
3
2
12
13
11
17
69
71
72
70
73
20
54
54
54
51
50 49
61
48
40
39 42 41
53 47
38
52
46
45
44
43
253129
Ref 24 Page 24