Contents Wiring diagrams Section: DOHC Petrol Engine All sections

Checking and Adjustment Values Opel Zafira B

EngineZ 20 LET
Idle speed
with manual transmissionrpm700 – 900 1)
Maximum rpmrpm6400
Spark plug electrode gapmm0.9 – 1.1
CompressionkPa1100 – 1400 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.