Vauxhall Workshop Service and Repair Manuals

Checking and Adjustment Values (X 20 DTL, X 20 DTH)  

Engine			X 20 DTL, X 20 DTH
Idle speed
	with manual transmission	rpm	790 - 890 1)
	with automatic transmission	rpm	-
Cut off speed		rpm	4750 1)
Exhaust gas opacity value		rpm
CO content		Vol. %	1)
Compression pressure		kPa	2500 to 2800 2)
Pressure loss			not more than 25% per cylinder
Valve clearance		mm	0

1)  Correction and adjustment according to Checking Procedure with TECH 2.  

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