Contents Wiring diagrams Section: DOHC Diesel Engine All sections

Cylinder Head Opel Astra G

DOHC Diesel 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-17 DTL
Cylinder head height 1)mm94.95 – 95.05
Valve seat width in cylinder head
Intake valvemm1.6 – 1.8
Exhaust valvemm1.4 – 1.6
Valve seat angle in cylinder head89.5°
Valve guide inside diametermm6.0
Length of valve guide
Intake valvemm41.75 – 42.25
Exhaust valvemm41.75 – 42.25
Installation height of valve guide
Intake valvemm11.1 – 11.3
Exhaust valvemm11.1 – 11.3
Installation height of valves
Intake valvemm36.85 – 37.25
Exhaust valvemm36.76 - 37.16
EngineZ-17 DTL
Valve length
Standard size
Intake valvemm98.45
Exhaust valvemm98.10
Ø Valve stem
Standard size
Intake valvemm5.97
Exhaust valvemm5.96
Valve play
Standard size
Intake valvemm0.40
Exhaust valvemm0.40
EngineZ-17 DTL
Valve stem play
Intake valvemm0.0190
Exhaust valvemm0.0215
perm. runout of the valve stemmm0.01
Ø Valve head
Intake valvemm27.5
Exhaust valvemm26.5
Valve seat angle at valve headmm89°
Valve rotator
Intake valveNo code
Exhaust valveNo code
Camshaft
Cam lift
Intakemm7.80 (new) -7.75 (used)
Exhaustmm7.95 (new) -7.90 (used)

1

) Resurfacing of the cylinder head is only permissible within the specified tolerance. If the minimum dimension of 94.95 mm is not met, replace the cylinder head.