Home/Opel/Corsa/Opel Corsa B (1993-2000)/Repair manual/OHC Petrol Engine/Technical Data - Cylinder Head

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Technical Data - Cylinder Head Opel Corsa B

OHC Petrol Engine 1 illustration

Cylinder Head

Illustration

Technical Data - Cylinder Head

Cylinder head height
Installation height of valve guide
Installation height of valve
Valve seat width in cylinder head
Valve seat angle in cylinder head
Valve stem diameter
Valve seat angle at valve
Valve length
Valve head - diameter

Cylinder Head

Engine		12 NZ, C 12 NZ, X 12 SZ, C 14 NZ, C 14 SE, X 14 SZ
Cylinder head height	mm	95.90 - 96.10
Valve seat width in cylinder head
	Intake valve	mm	1.3 - 1.5
	Exhaust valve	mm	1.6 - 1.8
Valve seat angle in cylinder head		90�
Valve guide inside diameter
	Standard size	mm	7.030 - 7.050
	Oversize (0.075)	mm	7.105 - 7.125
	Oversize (0.150)	mm	7.180 - 7.200
	Oversize (0.250)	mm	7.280 - 7.300
Length of valve guide
	Intake valve	mm	42.75 - 43.25
	Exhaust valve	mm	42.75 - 43.25
Installation height of valve guide
	Intake valve	mm	80.85 - 81.25
	Exhaust valve	mm	80.85 - 81.25
Installation height of valves
	Standard size	mm	13.75 - 14.35

Cylinder Head

Engine		12 NZ, C 12 NZ, X 12 SZ, C 14 NZ, C 14 SE, X 14 SZ
Valve length
	Standard size
		Intake valves (GM)	mm	104.65 - 105.35
		Exhaust valves (GM)	mm	104.65 - 105.35
	Oversize (0.075)
		Intake valves (GM K1)	mm	104.25 - 104.95
		Exhaust valves (GM K1)	mm	104.25 - 104.95
	Oversize (0.150)
		Intake valves (GM K2)	mm	104.25 - 104.95
		Exhaust valves (GM K2)	mm	104.25 - 104.95
	Oversize (0.250)
		Intake valves (A)	mm	104.25 - 104.95
		Exhaust valves (A)	mm	104.25 - 104.95

Cylinder Head

Engine		12 NZ, C 12 NZ, X 12 SZ, C 14 NZ, C 14 SE, X 14 SZ
� Valve stem
	Standard size
		Intake valves (GM)	mm	6.998 - 7.012
		Exhaust valves (GM)	mm	6.978 - 6.992
	Oversize (0.075)
		Intake valves (GM K1)	mm	7.073 - 7.087
		Exhaust valves (GM K1)	mm	7.053 - 7.067
	Oversize (0.150)
		Intake valves (GM K2)	mm	7.148 - 7.162
		Exhaust valves (GM K2)	mm	7.128 - 7.142
	Oversize (0.250)
		Intake valves (A)	mm	7.248 - 7.262
		Exhaust valves (A)	mm	7.228 - 7.242

Cylinder Head

Engine		12 NZ, C 12 NZ, X 12 SZ, C 14 NZ	C 14 SE, X 14 SZ
Valve stem play
	Intake valve	mm	0.018 - 0.052
	Exhaust valve	mm	0.038 - 0.072
perm. runout of the valve stem	mm	0.03
� Valve head
	Intake valve	mm	33	38
	Exhaust valve	mm	29	31
Valve seat angle at valve head		92�
Valve rotator
	Intake valve		No code
	Exhaust valve		No code

Engine		12 NZ, C 12 NZ, X 12 SZ	C 14 SE	C 14 NZ, X 14 SZ
Camshaft
	Cam lift
	Intake	mm	7.452	9.99	8.36
	Exhaust	mm	8.145	9.99	9.06