![Kohler Command PRO CH740NG [61/88] Disassembly inspection and service](/img/pdf.png)
Kohler Command PRO CH740NG [61/88] Disassembly inspection and service
![Kohler Command PRO CH740NG [61/88] Disassembly inspection and service](/views2/1597949/page61/bg3d.png)
61
Disassembly/Inspection and Service
24 690 30 Rev. D KohlerEngines.com
Remove Spark Plugs
Remove spark plug from each cylinder head.
Remove Cylinder Heads and Hydraulic Lifters
NOTE: Cylinder heads are retained using either screws
or nuts and washers on studs. Do not
interchange or mix components, as cylinder
heads may have different machining, unique to
each fastening method.
NOTE: Exhaust lifters are located on output shaft side
of engine while intake lifters are located on fan
side of engine. Cylinder head number is
embossed on outside of each cylinder head.
1. Remove screws or nuts and washers securing each
cylinder head. Discard nuts and washers once
removed. Do not reuse. Studs (if present) should
only be removed if damaged or if cylinder
reconditioning is necessary. Once removed, they
must be replaced.
2. Mark position of push rods as either intake or
exhaust and cylinder 1 or 2. Push rods should
always be reinstalled in same positions.
3. Carefully remove push rods, cylinder heads and
head gaskets.
4. Remove lifters from lifter bores. Use a Hydraulic
Lifter Tool. Do not use a magnet to remove lifters.
Mark lifters by location, as either intake or exhaust
and cylinder 1 or 2. Hydraulic lifters should always
be reinstalled in same position.
Inspection and Service
Valve Details
EXHAUST VALVE INTAKE VALVE
EXHAUST
INSERT
INTAKE
INSERT
H
H
G
G
E
E
F
F
A
A
C
D
D
B
B
Dimension Intake Exhaust
A Seat Angle 89° 89°
B Insert O.D. 36.987/37.013 mm (1.4562/1.4572 in.) 32.987/33.013 mm (1.2987/1.2997 in.)
C Guide Depth 4 mm (0.1575 in.) 6.5 mm (0.2559 in.)
D Guide I.D. 7.038/7.058 mm (0.2771/0.2779 in.) 7.038/7.058 mm (0.2771/0.2779 in.)
E Valve Head Diameter 33.37/33.63 mm (1.3138/1.3240 in.) 29.37/29.63 mm (1.1563/1.1665 in.)
F Valve Face Angle 45° 45°
G Valve Margin (Min.) 1.5 mm (0.0591 in.) 1.5 mm (0.0591 in.)
H Valve Stem Diameter 6.982/7.000 mm (0.2749/0.2756 in.) 6.970/6.988 mm (0.2744/0.2751 in.)
Содержание
- Ch18 ch20 ch23 ch25 ch640 ch730 ch740 1
- Service manual 1
- Safety 2
- Maintenance 3
- Maintenance 4
- Specifications 5
- Specifi cations 5
- Specifi cations 6
- Specifi cations 7
- Specifi cations 8
- Specifi cations 9
- Specifi cations 10
- Specifi cations 11
- Specifi cations 12
- Tools and aids 13
- Tools and aids 14
- Tools and aids 15
- Troubleshooting 16
- Troubleshooting 17
- Troubleshooting 18
- Troubleshooting 19
- Air cleaner intake 20
- Fuel system 21
- Fuel system 22
- Fuel system 23
- Fuel system 24
- Fuel system 25
- Fuel system 26
- Fuel system 27
- Fuel system 28
- Fuel system 29
- Governor system 30
- Governor system 31
- Lubrication system 32
- Lubrication system 33
- Electrical system 34
- Electrical system 35
- Electrical system 36
- Electrical system 37
- Electrical system 38
- Electrical system 39
- Electrical system 40
- Electrical system 41
- Electrical system 42
- Electrical system 43
- Electrical system 44
- Electrical system 45
- Electrical system 46
- Electrical system 47
- Electrical system 48
- Electrical system 49
- Starter system 50
- Starter system 51
- Starter system 52
- Starter system 53
- Starter system 54
- Starter system 55
- Starter system 56
- Disassembly inspection and service 57
- Disassembly inspection and service 58
- Disassembly inspection and service 59
- Disassembly inspection and service 60
- Disassembly inspection and service 61
- Disassembly inspection and service 62
- Disassembly inspection and service 63
- Disassembly inspection and service 64
- Disassembly inspection and service 65
- Disassembly inspection and service 66
- Disassembly inspection and service 67
- Disassembly inspection and service 68
- Disassembly inspection and service 69
- Disassembly inspection and service 70
- Disassembly inspection and service 71
- Reassembly 72
- Reassembly 73
- Reassembly 74
- Reassembly 75
- Reassembly 76
- Reassembly 77
- Reassembly 78
- Reassembly 79
- Reassembly 80
- Reassembly 81
- Reassembly 82
- Reassembly 83
- Reassembly 84
- Reassembly 85
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