service repair manual

1. Massey Ferguson
372 N TRACTOR - 819791 819791
Engine Page010-0000

2. MF 372 N TRACTOR - 819791
3-0001-085-B
Ref 00013085-1 Page 010-0005

3. Massey Ferguson
372 N TRACTOR - 819791 819791
Section Divider Page010-0005
Description Comments
. SERIAL NUMBERS
..............
For UK only or any text in English only
. NUMEROS DE
SERIES
For France only or any text in French only
. SERIEN NUMMER
..............
For Germany only or any text in German only
. MATR.O NUMERO
..............
For Italy only or any text in Italian only
. E
NUMERO SERIE
..............

4. MF 372 N TRACTOR - 819791
3-AA02-027-E
1
109
8
4
7
6
5
314
16
17
15
11 20 21
2121
2
25 26
22
22
22
22
22
23
23
24
24
24
24
Ref AA023027-1 Page 010-0015

5. Massey Ferguson
372 N TRACTOR - 819791 819791
Engine Installation Page010-0015
Item Part Number Qty Description Comments
1 3761004M92 1 Engine [A]
PEL - LD31259
Repairs and replaces 3701277M91
3763797M91 1 Engine PEL LD31284
2 3641217M91 1 Short Engine PEL - LD39336
Repairs and replaces PEL-LD39303
Repairs and replaces 3478237M91
3 1447048M1 1 Oil Filter
4 1694276M4 1 Bracket
5 376334X1 1 Screw Unc
6 353755X1 1 Washer
7 355565X1 1 Nut Unc
8 353536X1 1 Bolt Unf
9 353756X1 1 Washer
10 828123M2 1 Ball Bearing
11 3612115M1 1 V Belt
3761507M91 1 Kit, V Belt [A]
Repairs and replaces 3700658M91
14 3699880M1 1 Spacer Thickness 55,8MM
Repairs and replaces 3638568M1
15 3700576M1 1 Fan
16 353770X1 4 Washer
17 378805X1 4 Bolt Unf
20 3019858X1 1 Bolt Metric M12 X 35/30
Up to Serial or Engine Number 30/11/96
3807754M1 1 Bolt Metric M12 X 45/30
From Serial or Engine Number 31/11/96
21 3019851X1 3 Hex. Sock. Screw
22 3019853X1 5 Hex. Sock. Screw
23 825302M1 2 Dowel
24 3019855X1 4 Hex. Sock. Screw
25 3019852X1 1 Hex. Sock. Screw
26 3019862X1 1 Nut Metric
FOOTNOTE [A] WITH AIR CONDITIONING
FOOTNOTE [B] WITHOUT CONDITIONED AIR

6. MF 372 N TRACTOR - 819791
L-0560-52M-A
32
15
18 14
29
19
6 2010
9 21
33 12
238 17
25
34
24
13
26
27
16
22
28
30
11
7 3
3
1
1
5 2
4
Ref 0560P032-1 Page 010-0020

7. Massey Ferguson
372 N TRACTOR - 819791 819791
Engine - Cylinder Block - A4.236 Engine Page010-0020
Item Part Number Qty Description Comments
1 3641082M91 1 Cylinder
Block
Repairs and replaces 3637379M91
2 1 Cylinder
Block
(1)
Not serviced,order REF.1
3 5 Bearing Cap (1)
Not serviced,order REF.1
4 1476108X1 10 Screw (1)
5 733072M1 10 Ring (1)
6 3637331M1 4 Liner [A]
(1)
3637332M1 X Liner [B]
7 731354M1 6 Plug (1)
8 746259M1 4 Plug (1)
9 731354M1 2 Plug (1)
10 1476282X1 1 Plug (1)
11 4222017M1 1 Bush (1)
12 4222043M1 1 Plug (1)
Replace and repair. Old not interchangeable with new 733705M1
13 4222012M1 4 Plug (1)
14 376180X1 1 Plug (1)
15 4224555M1 1 Washer (1)
16 363819X1 2 Plug (1)
Repairs and replaces 733067M1
17 736868M1 1 Plug
18 4222500M1 1 Head Gasket Up to Serial or Engine Number 04-03-94
4222124M1 1 Gasket From Serial or Engine Number 05-03-94
Replace and repair. Old not interchangeable with new 3638294M1
19 3640868M91 1 Housing [C]
20 1 Housing (19)
Not serviced,order REF.19
21 1447691M1 1 Seal (19)
22 4223587M1 1 Joint. Repairs and replaces 3640867M1
Repairs and replaces 3638520M1
Up to Serial or Engine Number 04/03/94
4223587M1 1 Joint. From Serial or Engine Number 05/03/94
23 353519X1 10 Bolt Unf [D]
353519X1 12 Bolt Unf [E]
24 375703X1 10 Washer [D]
375703X1 12 Washer [E]
25 731947M1 2 Dowel
26 357987X1 2 Bolt
27 745015M1 2 Washer
28 363819X1 1 Plug Repairs and replaces 733067M1
29 745017M1 1 Pointer
30 731862M1 3 Stud
31 731996M1 1 Plug
32 376670X1 3 Plug
33 732404M1 1 Stud
34 748040M1 1 Plug
FOOTNOTE [A] PRESS FIT
FOOTNOTE [B] SLIP FIT
FOOTNOTE [C] WAS 3638347M91 USE 3640868M91 + 3641089M1 + 353519 X1 (2) + 375703X1 (2) + 3641090M1
FOOTNOTE [D] USED ONLY WITH 3638347M91
FOOTNOTE [E] USED ONLY WITH 3640868M91

8. MF 372 N TRACTOR - 819791
L-0563-49M-B
10
20 24
2725
28
13
2612
91916
1718
15
11
14
4
5
1
2
22
23 32930
78
21
6
Ref 0563P031-1 Page 010-0025

9. Massey Ferguson
372 N TRACTOR - 819791 819791
Engine - Crankshaft, Pistons & Piston Rod - A4.236 Engine Page010-0025
Item Part Number Qty Description Comments
1 3637401M91 1 Kit, Crankshaft
2 1 Crankshaft (1)
Not serviced,order REF.1
3 735168M91 1 Kit, Bearing [A]
735169M91 X Kit, Bearing [A]
Thickness (-)0.25MM
Thickness (-)0.010"
735170M91 X Kit, Bearing [A]
Thickness (-)0.50MM
Thickness (-)0.020"
735171M91 X Kit, Bearing [A]
Thickness (-)0.75MM
Thickness (-)0.030"
4 736950M91 1 Kit, Bearing [A]
(1)
736951M91 X Kit, Bearing [A]
Thickness (-)0.25MM
Thickness (-)0.010"
736952M91 X Kit, Bearing [A]
Thickness (-)0.50MM
Thickness (-)0.020"
736953M91 X Kit, Bearing [A]
Thickness (-)0.75MM
Thickness (-)0.030"
5 747128M1 2 Thrust Washer (1)
735742M1 X Washer Thickness (+)0.19MM
Thickness (+)0.0075"
6 747129M1 2 Thrust Washer (1)
735743M1 X Washer Thickness (+)0.19MM
Thickness (+)0.0075"
7 3638115M1 1 Thrust Block
8 3638113M1 3 Screw
9 3637034M91 4 Kit, Conrod
10 1 Conrod (9)
Not serviced,order REF.9
11 1 Cap (9)
Not serviced,order REF.9
12 733767M1 1 Bush (9)
13 4222485M1 2 Screw (9)
Replace and repair. Old not interchangeable with new 3637029M1
14 3637030M1 2 Nut (9)
15 3637515M91 4 Kit, Piston [B]
3637516M91 4 Kit, Piston [C]
16 1 Piston (15)
Not serviced,order REF.15
17 1 Pin (15)
Not serviced,order REF.15
18 376131X1 1 Clip (15)
19 376131X1 1 Clip (15)
Not serviced,order REF.15
20 745760M91 4 Kit, Piston Ring
745786M91 X Kit, Piston Ring Thickness (+)0.75MM
Thickness (+)0.030"
21 3638105M1 1 Gear [E]
Number of teeth/spines 28
734749M1 1 Gear [D]
Number of teeth/spines 28
Up to Serial or Engine Number U171963P
3638105M1 1 Gear [D]
Number of teeth/spines 28
From Serial or Engine Number U171964P
22 2196X 1 Key
23 3640716M1 1 Pulley,Crank [D]
Up to Serial or Engine Number .....
24 742106M91 1 Flywheel
25 1 Flywheel (24)
Not serviced,order REF.24
26 731008M1 1 Starter Ring (24)
Number of teeth/spines 115
27 375763X1 6 Screw
28 3819725M1 6 Washer Replace and repair. Old interchangeable with new 745365M1
29 742539M1 1 Washer

10. Massey Ferguson
372 N TRACTOR - 819791 819791
Engine - Crankshaft, Pistons & Piston Rod - A4.236 Engine Page010-0025
Item Part Number Qty Description Comments
30 3638318M1 1 Pulley [D]
From Serial or Engine Number .....
FOOTNOTE [A] PRE-FINISHED
FOOTNOTE [B] UNTOPPED
FOOTNOTE [C] PRE-TOPPED
FOOTNOTE [D] USED ONLY WITH LIST LF31284
FOOTNOTE [E] USED ONLY WITH LIST LF31259

11. MF 372 N TRACTOR - 819791
L-0566-52M-B
60
6159
323130
16
23
15
22
1421
1352
54
2053
12 28
55 19 2911
50
2651
27544
24254
49
62 333
3
37 8
46 2645
7
9
9
148
47
3443 17 103542
41
5640
38 36 58
57
18
Ref 0566P035-1 Page 010-0030

12. Massey Ferguson
372 N TRACTOR - 819791 819791
Engine - Cylinder Head - A4.236 Engine Page010-0030
Item Part Number Qty Description Comments
1 3640877M91 1 Kit, Cyl. Head Repairs and replaces 3637486M91
2 3641088M1 1 Cylinder Head (1)
Repairs and replaces 3638333M91
3 1 Cylinder Head (2)
Not serviced,order REF.2
4 4223073M1 4 Guide (2)
Replace and repair. Old not interchangeable with new 3640676M1
5 4223074M1 4 Guide (2)
Replace and repair. Old not interchangeable with new 748420M1
6 731410M1 1 Plug (2)
7 376178X1 1 Washer (2)
8 731354M1 1 Plug (2)
9 743097M1 4 Insert (2)
10 741466M1 4 Exhaust Valve (1)
STANDARD
From Serial or Engine Number
741937M1 X Exhaust Valve [C]
Thickness (+)0.003"
Thickness (+) 0.076MM
741938M1 X Exhaust Valve [C]
Thickness (+)0.015"
Thickness (+)0.381MM
741939M1 X Exhaust Valve [C]
Thickness (+)0.030"
Thickness (+)0.762MM
747552M1 1 Exhaust Valve (1)
STANDARD
Up to Serial or Engine Number
747553M1 X Exhaust Valve Thickness (+)0.003"
747554M1 X Exhaust Valve Thickness (+)0.015"
747555M1 X Exhaust Valve Thickness 0.030"
11 733824M1 4 Washer (1)
12 740465M1 4 Spring (1)
From Serial or Engine Number
Diameter I.D 21.94MM
747813M1 4 Spring (1)
Up to Serial or Engine Number
Length I.D 20.65MM
13 740467M1 4 Spring (1)
From Serial or Engine Number
Diameter I.D 29.70MM
747814M1 4 Spring (1)
Up to Serial or Engine Number
Diameter I.D 28.90MM
14 3637041M1 4 Seal (1)
15 740468M1 4 Cap (1)
From Serial or Engine Number
Length 11.10MM
746698M1 4 Cap (1)
Up to Serial or Engine Number
Length 14.30MM
16 736453M1 4 Cotter [A]
(1)
17 735820M1 4 Inlet Valve (1)
3638919M91 X Inlet Valve [C]
Thickness (+)0.003"
Thickness (+)0.076MM
3641297M1 X Inlet Valve [C]
Thickness (+)0.015"
Thickness (+)0.381MM
3638920M91 X Inlet Valve [C]
Thickness (+)0.030"
Thickness (+)0.762MM
18 733824M1 4 Washer (1)
19 740465M1 4 Spring (1)
From Serial or Engine Number
Diameter I.D 21.94MM
747813M1 4 Spring (1)
Up to Serial or Engine Number
Diameter I.D 20.65MM

13. Massey Ferguson
372 N TRACTOR - 819791 819791
Engine - Cylinder Head - A4.236 Engine Page010-0030
Item Part Number Qty Description Comments
20 740467M1 4 Spring (1)
From Serial or Engine Number
Diameter I.D 29.70MM
20 747814M1 4 Spring (1)
Up to Serial or Engine Number
Diameter I.D 28.90MM
21 3637041M1 4 Seal (1)
22 740468M1 4 Cap (1)
From Serial or Engine Number
Length 11.10MM
22 746698M1 4 Cap (1)
Up to Serial or Engine Number
Length 14.30MM
23 736453M1 4 Cotter [A]
(1)
24 748368M1 1 Plate
25 3638693M1 1 Joint.
26 353536X1 2 Bolt Unf
27 353434X1 2 Lock Washer
28 353518X1 4 Screw Unf
29 339374X1 4 Lock Washer
30 747741M1 2 Screw [E]
30 739504M1 2 Screw [D]
Up to Serial or Engine Number U0276630M
30 747741M1 2 Screw [D]
From Serial or Engine Number U027631M
31 747742M1 12 Bolt [E]
31 739505M1 12 Screw [D]
Up to Serial or Engine Number U027630M
31 747742M1 12 Bolt [D]
From Serial or Engine Number U027631M
32 747743M1 8 Screw [E]
32 739506M1 8 Screw [D]
Up to Serial or Engine Number U027630M
32 747743M1 8 Screw [D]
From Serial or Engine Number U027631M
33 747051M1 1 Housing Repairs and replaces 747023M1
34 3638702M1 1 Joint.
35 731410M1 1 Plug
36 376178X1 1 Washer
37 376606X1 1 Plug
38 353518X1 2 Screw Unf [D]
38 4222065M1 2 Screw [E]
39 339374X1 2 Lock Washer [E]
39 339374X1 3 Lock Washer [D]
40 353529X1 2 Bolt Unf
41 353434X1 2 Lock Washer
42 353518X1 2 Screw Unf [E]
42 4222065M1 2 Screw [D]
43 339374X1 1 Lock Washer [E]
44 1447753M1 1 Stud Up to Serial or Engine Number
45 353431X1 1 Nut Unf [E]
Up to Serial or Engine Number
46 353434X1 1 Lock Washer
47 1 Bolt [B]
48 1 Washer [B]
49 1446165M91 1 Thermostat
50 3641844M1 1 Connection
51 745106M1 1 Joint.
52 353554X1 1 Bolt Unf
53 353434X1 1 Lock Washer
54 3641304M1 1 Screw [E]
54 348289X1 1 Screw [D]
55 353434X1 1 Lock Washer
56 3638162M1 1 Plate
57 353538X1 2 Bolt Unf
58 353434X1 2 Lock Washer
59 3638163M1 1 Plate
60 353538X1 2 Bolt Unf
61 353434X1 2 Lock Washer
62 361511X1 1 Screw

14. Massey Ferguson
372 N TRACTOR - 819791 819791
Engine - Cylinder Head - A4.236 Engine Page010-0030
Item Part Number Qty Description Comments
FOOTNOTE [A] SERVICED IN PAIRS
FOOTNOTE [B] REFER TO ALTERNATOR POSITIONER SECTION
FOOTNOTE [C] OVERSIZE VALVES CAN ONLY BE USED WITH CYLINDER HEA DS WHEN VALVE GUIDES ARE NOT
FITTED.
FOOTNOTE [D] USED ONLY WITH LIST LF31284
FOOTNOTE [E] USED ONLY WITH LIST LF31259

15. MF 372 N TRACTOR - 819791
L-0569-49M-A
28
30
29
32
26 31
27
24
1525
3316 14
13
342
123
4
1
5 20
19
1817
23
10
118
6
22
21
7
9
Ref 0569P031-1 Page 010-0035

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17. Massey Ferguson
372 N TRACTOR - 819791 819791
Engine - Camshaft & Rocker Arm - A4.236 Engine Page010-0035
Item Part Number Qty Description Comments
1 3641234M91 1 Rocker Shaft
Ass
Repairs and replaces 3637391M91
2 3637395M91 1 Rocker Shaft (1)
3 1 Shaft (2)
Not serviced,order REF.2
4 731330M1 2 Plug (2)
5 3638403M1 4 Bracket (1)
Repairs and replaces 3637063M1
Repairs and replaces 746461M1
6 4223075M91 4 Rocker (1)
Repairs and replaces 3637071M91
Right Hand
Replace and repair. Old not interchangeable with new 3641306M91
7 1 Lever (6)
Not serviced,order REF.6
8 895748M1 1 Bush (6)
9 4223076M91 4 Rocker (1)
Left Hand
Replace and repair. Old not interchangeable with new 3641247M1
10 1 Lever (9)
Not serviced,order REF.9
11 895748M1 1 Bush (9)
12 733811M1 2 Spring (1)
13 733812M1 2 Spring (1)
14 3638499M1 1 Connection (1)
15 3638500M1 1 Screw (1)
16 739513M91 2 Shim (1)
17 376137X1 2 Circlip (1)
18 747876M1 2 Washer (1)
19 4223933M1 8 Screw (1)
20 376123X1 8 Nut (1)
21 4222069M1 8 Tappet Replace and repair. Old not interchangeable with new 740671M1
22 733817M1 8 Rod
23 376525X1 1 Olive
24 361543X1 4 Bolt
25 1440275X1 4 Washer Metric
26 734912M91 1 Cover
27 4223924M1 1 Joint. Replace and repair. Old not interchangeable with new 3638482M1
28 376192X1 4 Bolt
29 344107X1 4 Washer
30 353441X1 4 Lock Washer
31 740497M1 1 Pipe
32 3641405M1 1 Hose Clip Replace and repair. Old not interchangeable with new 3638598M1
33 3638364M1 1 Pipe
34 3637695M1 1 Screw

18. MF 372 N TRACTOR - 819791
L-0572-50M-B
49
50 43
52
51
14 53
44
40
15 47 46
16
41
54
48
42 55
454 5618
3
1
17
222
21
20
19
6
512 7
10
9
11 8 29
28
13
2757
2533
2632 23
31
35
3059 24
37
363934
58 38
Ref 0572P032-1 Page 010-0040