Vauxhall Workshop Service and Repair Manuals

Test & reference values  

Engine				C 18 XE	C 18 XEL	C 18 SEL X 18 XE
idle speed
		Manual transmission	min -1	700 - 1000 1)	800 - 1000 1)	670 - 1030 1)
		Automatic transmission	min -1	-	-	670 - 1030 1)
Maximum rpm			min -1		6600 1)
CO content			vol. %		1)
Spark plug electrode gap			mm	0.7 - 0.9 /FR 8 LDC4)
				0.9 - 1.1 /FR 8 LDCU)
Compression			kPa		1300 - 1400 2)
Pressure loss.				not to exceed 25 % per Cylinder
Valve clearance:			mm		0

1)  Correction and adjustment in accordance with testing instructions with TECH2.  

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

Test & reference values (continuation)  

Engine				C 20 XE	X 20 XEV
idle speed
		Manual transmission	min -1	860 - 1020 1)	670 - 1030 2)
		Automatic transmission	min -1	-	670 - 1030 2)
Maximum rpm			min -1	6800 2)	6600 2)
CO content			vol. %	2)
spark plug electrode gap			mm	0.7 - 0.9 (FR 8 LDC4)
				0.9 - 1.1 (FR 8 LDCU)
compression			kPa	1450 - 1500 3)	1200 - 1500 4)
Pressure loss.				not to exceed 25 % per Cylinder
Valve clearance:			mm	0

1)  Correction and adjustment in accordance with testing instructions with TECH2.  

2)  Correction and adjustment in accordance with testing instructions with TECH2.  

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

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