Honda GX270H Manual page 31

62Z7B000.book 6 ページ ２０１２年９月２７日 木曜日 午前１０時２１分
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SERVICE INFORMATION
STANDARD TORQUE VALUES
Item
Screw
Bolt and nut
Flange bolt and nut
SH (Small head) flange bolt
CT (Cutting threads) flange bolt (Retightening)
LUBRICATION & SEAL POINT
Material
Engine oil
Multi-purpose grease
Use molybdenum oil solution
(mixture of the engine oil and
molybdenum grease in a ratio
of 1:1)
LOCTITE® 638 or equivalent
2-6
Tread Dia. (mm)
4 mm
5 mm
6 mm
5 mm
6 mm
8 mm
10 mm
12 mm
5 mm
6 mm
8 mm
10 mm
6 mm
5 mm
6 mm
Location
Crankshaft pin and gear teeth
Piston outer surface, ring groove and piston pin hole
Piston pin outer surface
Piston ring entire surface
Cylinder inner surface
Connecting rod big and small end bearing
Connecting rod bolt threads and seating surface
Camshaft cam profile and journal
Valve lifter pivot, pivot end and slipper surface
Valve stem sliding surface and stem end
Valve rocker arm tappet surface and pivot
Rocker arm pivot threads and pivot
Flywheel nut threads and seating surface
Governor weight holder gear and sliding surface
Governor holder shaft journal
Governor arm shaft journal
Cylinder head bolt threads and seating surface
Balancer shaft bearing and gear (GX390H1)
Drive sprocket, P.T.O. shaft gear teeth and journal
Drive sprocket, P.T.O. shaft, clutch center gear teeth
and journal
Countershaft bearing and gears
Oil seal lip
O-ring
Recoil starter reel sliding surface
Recoil starter ratchet sliding surface
Recoil starter ratchet guide inside
Camshaft cam profile
Limiter cap inside
Torque values
N·m kgf·m lbf·ft
2.1 0.2 1.5
4.3 0.4 3.1
9.0 0.9 6.6
5.3 0.5 3.9
10 1.0 7
22 2.2 16
34 3.5 25
54 5.5 40
5.3 0.5 3.9
12 1.2 9
23 2.3 17
40 4.0 30
9.0 0.90 6.6
5.4 0.6 4.0
12 1.2 9
Remarks
Reduction unit
When installing a new
camshaft