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Contents Wiring diagrams Section: DOHC Petrol Engine All sections

Cylinder Head Opel Astra H

DOHC Petrol Engine 1 illustration

Illustration

  1. 1. Cylinder head height
  2. 2. Installation height of valve guide
  3. 3. Installation height of valve
  4. 4. Valve seat width in cylinder head
  5. 5. Valve seat angle in cylinder head
  6. 6. Valve stem diameter
  7. 7. Valve seat angle at valve
  8. 8. Valve length
  9. 9. Valve head – diameter
EngineZ 22 YH
Cylinder head heightmm129
Valve seat width in cylinder head
Intake valvemm1.1 – 1.3
Exhaust valvemm1.4 – 1.8
Valve seat angle in cylinder head90°
Valve guide inside diameter
Standard sizemm6.000 – 6.012
Oversizemm
Length of valve guide
Intake valvemm36
Exhaust valvemm36
Installation height of valve guide
Intake valvemm11.2 – 11.5
Exhaust valvemm11.2 – 11.5
Installation height of valves
Standard sizemm40.1
Oversizemm
EngineZ 22 YH
Valve length
Standard size
Intake valve (GM)mm101.995 – 102.545
Exhaust valve (GM)mm100.685 – 101.235
Oversize (0.075)
Intake valve (GM K1)mm101.595 – 102.145
Exhaust valve (GM K1)mm100.285 – 100.835
Ø Valve stem
Standard size
Intake valve (GM)mm5.955 – 5.970
Exhaust valve (GM)mm5.945 – 5.960
Oversize (0.075)
Intake valve (GM K1)mm6.030 – 6.045
Exhaust valve (GM K1)mm6.020 – 6.035
EngineZ 22 YH
Valve stem play
Intake valvemm0.042 – 0.045
Exhaust valvemm0.052 – 0.055
perm. runout of the valve stemmm0.03
Ø Valve head
Intake valvemm34.95 – 35.25
Exhaust valvemm29.95 – 30.25
Valve seat angle at valve headmm90° 40`
Valve rotator
Intake valveNo code
Exhaust valveNo code
EngineZ 22 YH
Camshaft
Cam lift
Intakemm5.95
Exhaustmm5.95

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