Vauxhall Workshop Service and Repair Manuals

Crank Drive, Cylinder Block (X 18 XE, X 20 XEV, C 20 SEL, C 22 SEL)  

Illustration     1  Main Bearing Journals   2  Con-rod bearing journal   3  3 Main Bearing Journals (Guide Bearing)   4  Crankshaft colour code   5  Bearing shell colour code   6  Bearing shell identification

Crank Drive, Cylinder Block (Continued)  

Engine		X 18 XE, X 20 XEV, C 20 SEL, C 22 SEL
Crankshaft dimensions		Ø Main Bearing Journals   1 to 5	Colour code
Standard size	mm	57.974 to 57.981	white
	mm	57.981 to 57.988	green
	mm	57.988 to 57.995	brown
Undersize (0.25)	mm	57.732 to 57.738	green / blue
	mm	57.738 to 57.745	brown / blue
Undersize (0.50)	mm	57.482 to 57.488	green / white
	mm	57.488 to 57.495	brown / white
		Ø Con-rod bearing journal   1 to 4
Standard size	mm	48.970 to 48.988	-
Undersize (0.25)	mm	48.720 to 48.738	blue
Undersize (0.50)	mm	48.470 to 48.488	white
		3 wide main bearing journals (guide bearing)
Standard size	mm	25.950 to 26.002	-
Undersize (0.20)	mm	26.150 to 26.202	-
Undersize (0.40)	mm	26.350 to 26.402	-

Crank Drive, Cylinder Block (Continued)  

Engine		X 18 XE, X 20 XEV, C 20 SEL, C 22 SEL
Crankshaft bearing   1, 2, 4, 5		Lower crankshaft bearing shell
		Colour code	Thickness	Identification GM 2985
Standard size	mm	brown	1.989 to 1.995	662 N
	mm	green	1.995 to 2.001	663 N
	mm	white	2.001 to 2.007	528 N
Undersize (0.25)	mm	brown / blue	2.114 to 2.120	664 A
	mm	green / blue	2.120 to 2.126	665 A
Undersize (0.50)	mm	brown / white	2.239 to 2.245	666 B
	mm	green / white	2.245 to 2.251	667 B
		Upper crankshaft bearing shell
Standard size	mm	brown	1.989 to 1.995	662 N
	mm	green	1.995 to 2.001	663 N
	mm	white	2.001 to 2.007	528 N
Undersize (0.25)	mm	brown / blue	2.114 to 2.120	664 A
	mm	green / blue	2.120 to 2.126	665 A
Undersize (0.50)	mm	brown / white	2.239 to 2.245	666 B
	mm	green / white	2.245 to 2.251	667 B
Perm. crankshaft bearing clearance	mm		0.015 to 0.043

Crank Drive, Cylinder Block (Continued)  

Engine		X 18 XE, X 20 XEV, C 20 SEL, C 22 SEL
Crankshaft bearing 3 (guide bearing)		Lower crankshaft bearing shell
		Colour code	Thickness	Identification GM 2985
Standard size	mm	brown	1.989 to 1.995	662 N
	mm	green	1.995 to 2.001	663 N
	mm	white	2.001 to 2.007	528 N
Undersize (0.25)	mm	brown / blue	2.114 to 2.120	657 A
	mm	green / blue	2.120 to 2.126	658 A
Undersize (0.50)	mm	brown / white	2.239 to 2.245	659 B
	mm	green / white	2.245 to 2.251	660 B
		Upper crankshaft bearing shell
Standard size	mm	brown	1.989 to 1.995	655 N
	mm	green	1.995 to 2.001	656 N
	mm	white	2.001 to 2.007	126 N
Undersize (0.25)	mm	brown / blue	2.114 to 2.120	657 A
	mm	green / blue	2.120 to 2.126	658 A
Undersize (0.50)	mm	brown / white	2.239 to 2.245	659 B
	mm	green / white	2.245 to 2.251	660 B

Crank Drive, Cylinder Block (Continued)  

Engine		X 18 XE, X 20 XEV, C 20 SEL, C 22 SEL
Wide crankshaft bearing 3 (guide bearing)		Colour code	Thickness	Code
Standard size	mm	brown - green - white	25.850 to 25.900	-
Undersize (0.25)	mm	brown / blue   green / blue	26.050 to 26.100	-
Undersize (0.50)	mm	brown / white   green / white	26.250 to 26.300	-

Crank Drive, Cylinder Block (Continued)  

Engine		X 18 XE, X 20 XEV, C 20 SEL, C 22 SEL
Con-rod bearing		Lower con-rod bearing shell
		Colour code	Thickness	Identification GM 124
Standard size	mm	-	1.490 to 1.500	623 N
Undersize (0.25)	mm	blue	1.615 to 1.625	624 A
Undersize (0.50)	mm	white	1.740 to 1.750	625 B
		Upper con-rod bearing shell
Standard size	mm	-	1.490 to 1.500	623 N
Undersize (0.25)	mm	blue	1.615 to 1.625	624 A
Undersize (0.50)	mm	white	1.740 to 1.750	625 B
Perm. con-rod play	mm		0.006 to 0.031

 

Crank Drive, Cylinder Block (Continued)   Illustration     1  Index-identification of cylinder bore   2  Cylinder bore   3  Oil scraper ring   4  Tapered compression ring   5  Rectangular compression ring   6  Piston diameter

Crank Drive, Cylinder Block (Continued)  

Engine					X 18 XE
Cylinder grinding dimensions
	Cylinder diameter
		Normal sizes (index)
			8	mm	81.575 to 81.585
			99	mm	81.585 to 81.595
			00	mm	81.595 to 81.605
			01	mm	81.605 to 81.615
			02	mm	81.615 to 81.625
		Oversize (index)
			7 + 0.5	mm	82.065 to 82.075
Piston dimensions
	Piston diameter
		Normal sizes (index)
			8	mm	81.555 to 81.565
			99	mm	81.565 to 81.575
			00	mm	81.575 to 81.585
			01	mm	81.585 to 81.595
			02	mm	81.595 to 81.605
		Oversize (index)
			7 + 0.5	mm	82.045 to 82.055

Crank Drive, Cylinder Block (Continued)  

Engine					X 20 XEV, C 20 SEL, C 22 SEL
Cylinder grinding dimensions
	Cylinder diameter
		Normal sizes (index)
			8	mm	85.975 to 85.985
			99	mm	85.985 to 85.995
			00	mm	85.995 to 86.005
			01	mm	86.005 to 86.015
			02	mm	86.015 to 86.025
		Oversize (index)
			0 + 0.5	mm	86.515 to 86.525
Piston dimensions
	Piston diameter
		Normal sizes (index)
			8	mm	85.955 to 85.965
			99	mm	85.965 to 85.975
			00	mm	85.975 to 85.985
			01	mm	85.985 to 85.995
			02	mm	85.995 to 86.005
		Oversize (index)
			0 + 0.5	mm	86.495 to 86.505

Crank Drive, Cylinder Block (Continued)  

Engine				X 18 XE, X 20 XEV, C 20 SEL, C 22 SEL
Cylinder bore
	Bore
		Permissible out-of-round	mm	0.013
		Permissible taper	mm	0.013
	Piston projection		mm	0.4
Piston clearance			mm	0.02 to 0.04

Crank Drive, Cylinder Block (Continued)  

Engine				X 18 XE, X 20 XEV, C 20 SEL, C 22 SEL
Piston rings
	Rectangular compression ring
		Height	mm	1.5
		Gap	mm	0.3 to 0.5
		Vertical play	mm	0.02 to 0.04
	Tapered compression ring
		Height	mm	1.5
		Gap	mm	0.3 to 0.5
		Vertical play	mm	0.02 to 0.04
	Oil scraper ring
		Height	mm	3.0
		Gap	mm	0.4 to 1.4
		Vertical play	mm	0.01 to 0.03
	Ring gap distribution		°	180 1)

1)  Arrange gap of upper oil scraper ring 25 to 50 mm offset to the left and gap of the lower ring 25 to 50 mm offset to the right relative to the gap of the lower intermediate ring.  

Crank Drive, Cylinder Block (Continued)  

Engine				X 18 XE	X 20 XEV, C 20 SEL	C 22 SEL
Piston pin
	Length		mm	56	61,5
	Diameter		mm	21	21
	Installation			shrunk in con-rod
	Clearance
		in piston	mm	0.011 to 0.014
		In con-rod	mm	0.0