Cylinder Head/Valves - Honda V 45 SABRE-VF750S 1982 Shop Manual

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HONDA
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V45
SA"RE
MAGNA
1 O. CYLINDER HEAD/VALVE
SERVICE INFORMATION
10-1
VALVE GUIOE REPLACEMENT
TROUBLESHOOTING 10-2
VALVE SEAT INSPECTIONI
REFACING
CAMSHAFT REMOVAL 10-3 CYLINDER HEAD ASSEMBLY
CYLINDER HEAO REMOVAL 10-7
CYLINDER HEAD INSTALLATION
CYLINDER HEAD DISASSEMBLY
10-9 CAMSHAFT INSTALLATION
SERVICE INFORMATION
GENERAL
• To remove the cylinder head, the following parts must
be
removed :
Exhaust pipes (Section 5).
· Engine mounting bolt on rear cylinde r head ,
• Carburetor (Sect ion 4 ),
· Radiator (Section 6) .
• Camshaft lubricating oil is f&d through an oi llin8. Be sure the hole in the oil line is not clogged,
• During assembly, apply molybdenum d isulfide to th e camshaft holder surfaces to provide initial lubrication .
• The cylinder numbering is given below :
FRONT
•
SPECIFICATIONS
LEFT
10-13
10-14
10-15
10-16
10-18
STANDARD SERVICE LIMIT
Compression pressure 13 ± 2 kg/ cm
2
(184 ± 28 psi)
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Camshaft
Cam height IN 35.335- 35.495 mm
t
1.3911-1.3974 in)
35.3 mm
(1.39 in)
EX
35.335 - 35.495 mm (1.3911 - 1.3974 in) 35.3 mm
{1.39 in)
Runout
0.10mm
(0.004 in)
End ctearance
0 .05- 0 .25 mm (0.002-0.010 in)
0.30 mm
(0.012 in)
Oil clearance Center
0.030 0.091 mm
(0.001 0 .004 in) 0.10mm (0.004 in)
Both ends 0.050-0.111 mm (0.002- 0 .004 in)
0.12 mm (0.005 in)
Rocker arm Rocker arm 1.0. 12.000
12.018mm (0.4724 0.4731 in)
12.05
mm (0.474 in)
Shoft 0. 0 . 11 .966- 11.984 mm (0.4711 - 0.4718 in) 11 .93mm (0.470 in)
Valve Valve stem 0 .0 . IN 5.475- 5.490 mm (0.2156- 0.2161 in) 5.47 mm (0.215 in)
EX
5 .455-5.470 mm (0.2148-0.2154 in)
5.45 mm
(0.214 in)
Valve gu ide 1.0. 5.500 5.515 mm (0.2165-0.2171 in) 5.55 mm (0.219 in)
Stem·to.gu ide clearance IN 0,010- 0.040 mm (0.0004-0.0016 in) 0.08 mm (0.003 in)
EX
0.030-0.060 mm (0.0012 0 .0024 in) 0.10 mm (0.004 in)
Valve stem ru nout
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0.05 mm (0.002 in)
Valve length IN 89.55 mm
(3.526 in) 89.05 mm
(3.506 in)
EX
89 .35 mm (3.518 in)
88.85 mm (3,498 in)
Valve seat width
0.99-1.27 mm
(0.039-0.050 in)
1.5 mm
(0.06 in)
Date of Issue: May, 1982
©
HONDA MOTOR CO ., LTD .
135
10-1
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