Craftsman 917.272070 User Manual
Page 49
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TRACTOR - - MODEL NUMBER 917.272070
KOHLER ENGINE-MODEL NUMBER CV490,TYPE NUMBER 27505
CYLINDER HEAD/VALVE/BREATHER
KEY PART
NO. NO.
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25-351-01-S
12-755-94-S
DESCRIPTION
Lifter, valve (2)
Kit, cylinder head (Includes
3-17, Gaskets 12 041 01-S
(Qly. 2), 12 041 02-S, & 12
041 03-S)
12-411-03-S Rod, push (2)
12-041-10-S Gasket, cylinder head
12-017-01-S Valve, intake (Std.)
12-017-02-S Valve, intake (.25)
12-016-01-S Valve, exhaust (Std,)
12-016-02-S Valve, exhaust (.25)
25-139-60-S Plug, alien hd. pipe 1/8"
12-318-36-S Cylinder Head
25-186-01-S Arm, rocker (2)
12-599-03-S Pivot, rocker arm (2)
M-640034-S Screw, hex. flange
M6xl.0x34 (2)
12-089-01-S Spring, valve (2)
12-173-01-S Cap, valve spring (2)
12-755-03-S Kil, relainer (2)
12-468-05-S Washer, plain 13/32”
12-112-13-S Spacer, head bolt exhaust
port
12-086-15-S Screw, hex. flange
M10X1.5X81 (5)
25-237-14-S Clamp, hose (2)
12-326-03-S Hose, breather
M-645020-S Screw, hex. flange
M6x 1.0x20 (5)
12-096-07-S Cover, valve w/nipple
M-545010-S Screw, hex. flange
M5x0.8x10
12-018-01-S Retainer, breather reed
12-402-02-S Reed, breather
CRANKCASE
KEY PART
NO. NO.
9
10
11
12
13
14
15
16
17
18
19
20
2 1
22
23
12-032-03-S
12-445-02-S
M-839025-S
24-380-13-S
12-755-49-S
12-089-31-S
12-422-08-S
12-422-09-3
12-422-10-S
12-422-11-S
12-422-12-S
12-422-13-S
12-422-07-S
12-144-28-S
12-874-07-S
12-874-11-S
12-674-08-S
12-874-09-S
12 018 02-S
12-108-07-S
12-108-08-S
12-108-09-S
12-067-11-S
12-067-06-S
12-380-01-S
12-043-05-S
M-63100S-S
12-144-02-S
52-139-09-3
12-755-64-S
X-25-102-S
12-032-01-S
M-631015-S
12-154-05-S
DESCRIPTION
Seal, crankshaft
Block, cylinder
(Use Short Block 12 522
49)
Strap, lifting
Screw, hex. flange
M8x 1.25x25
Dowel, locating (4)
Kit, camshaft (Includes 7,8)
Spring, actuating
Shim, camshaft (A.R.) blue
Shim, camshaft (A.R.) red
Shim, camshaft (A.R.)
yellow
Shim, camshaft (A.R.) green
Shim, camshaft (A.R.) gray
Shim, camshaft (A.R.) black
Shim, camshaft (A.R.) white
Shaft, balance
Piston w/Ring Set (Std.)
(Includes 11,12)
Piston w/Ring Set (.08)
Piston w/Ring Set (.25)
Piston w/Ring Set (.50)
Retainer, piston pin (2)
Ring Set (Std.)
Ring Set (.25)
Ring Set (.50)
Connecting Rod (Std.)
Connecting Rod (.25)
Pin, governor regulating
Gear, governor
Washer, plain 6 mm
Shaft, governor gear
Plug, cup
Kit, gov. cross shaft w/clip
(Includes 23)
Washer, plain 1/4"
Seal, governor cross shaft
Washer, plain 6 mm
Clip, hitch pin
NOTE:
All component dimensions given in U S.
inches 1 inch = 25.4 mm
49