Contents Wiring diagrams Section: DOHC Petrol Engine All sections

Checking and Adjustment Values Opel Astra G

EngineX 12 XEZ 12 XEZ 14 XEP
Idle speed
with manual transmissionrpm730 – 960 1)750 – 970 1)720 - 880 1)
with automatic transmissionrpm---
Maximum rpmrpm620062506200
Spark plug electrode gapmm0.9 – 1.10.85 - 0.95
CompressionkPa1400 – 1600 2)
Pressure lossnot more than 25% per cylinder
Valve playmm0

1

) Correction and checking according to Checking Procedure with TECH2.

2

) The pressure difference between individual cylinders should not exceed 100 kPa.