Home/Opel/Corsa/Opel Corsa C (2001-2011)/Repair manual/DOHC Petrol Engine/Crank Drive, Cylinder Block

Contents

Wiring diagrams Section: DOHC Petrol Engine

All sections

Crank Drive, Cylinder Block Opel Corsa C

DOHC Petrol Engine 2 illustrations ~132 words

Illustration: Z 18 Xe

Crank Drive, Cylinder Block

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

Engine				Z 18 XE
Crankshaft dimensions			Ø Main Bearing Journal	Colour code
			1 - 5
	Standard size	mm	54.980 - 54.997	brown
		mm	54.980 - 54.997	green
	Undersize (0.25)	mm	54.730 - 54.747	brown / blue
		mm	54.730 - 54.747	green / blue
	Undersize (0.50)	mm	54.482 - 54.495	brown / white
		mm	54.482 - 54.495	green / white
			Ø Con-rod bearing journal
			1 - 4
	Standard size	mm	42.971 - 42.987	-
	Undersize (0.25)	mm	42.721 - 42.737	blue
	Undersize (0.50)	mm	42.471 - 42.487	white
			Width
			Main Bearing Journals 3
			(Guide bearing)
	Standard size	mm	26.000 - 26.052	-
	Undersize (0.20)	mm	26.200 - 26.252	-
	Undersize (0.40)	mm	26.400 - 26.452	-

Engine			Z 18 XE
Crankshaft bearing			Lower crankshaft bearing shell
1.2.4.5			Colour code	Thickness
			Code
					GM 74, GM 985, GM 15
	Standard size	mm	brown	1.987 - 1.993	256 N
		mm	green	1.993 - 1.999	257 N
	Undersize (0.25)	mm	brown / blue	2.112 - 2.118	258 A
		mm	green / blue	2.118 - 2.124	259 A
	Undersize (0.50)	mm	brown / white	2.237 - 2.243	260 B
		mm	green/ white	2.243 - 2.249	261 B
			Upper crankshaft bearing shell
	Standard size	mm	brown	1.987 - 1.993	256 N
		mm	green	1.993 - 1.999	257 N
	Undersize (0.25)	mm	brown / blue	2.112 - 2.118	258 A
		mm	green / blue	2.118 - 2.124	259 A
	Undersize (0.50)	mm	brown / white	2.237 - 2.243	260 B
		mm	green / white	2.243 - 2.249	261 B
Perm. crankshaft bearing play		mm	0.005 - 0.059
Perm. crankshaft end play		mm	0.100 - 0.202
Perm. out-of-round		mm	0.03

Engine			Z 18 XE
Crankshaft bearing 3			Lower crankshaft bearing shell
(guide bearing)			Colour code	Thickness	Code
			Code		GM 74, GM 985, GM 15
	Standard size	mm	brown	1.987 - 1.993	859 N
		mm	green	1.993 - 1.999	860 N
	Undersize (0.25)	mm	brown / blue	2.112 - 2.118	861 A
		mm	green / blue	2.118 - 2.124	862 A
	Undersize (0.50)	mm	brown / white	2.237 - 2.243	863 B
		mm	green/ white	2.243 - 2.249	864 B
			Upper crankshaft bearing shell
	Standard size	mm	brown	1.987 - 1.993	859 N
		mm	green	1.993 - 1.999	860 N
	Undersize (0.25)	mm	brown / blue	2.112 - 2.118	861 A
		mm	green / blue	2.118 - 2.124	862 A
	Undersize (0.50)	mm	brown / white	2.237 - 2.243	863 B
		mm	green / white	2.243 - 2.249	864 B

Engine			Z 18 XE
Crankshaft bearing 3			Colour code	Width	Code
(guide bearing)			Code
	Standard size	mm	brown / green	25.850 - 25.900	-
	Undersize (0.25)	mm	brown / blue	26.050 - 26.100	-
			green / blue
	Undersize (0.50)	mm	brown / white	26.250 - 26.300	-
			green / white

Engine			Z 18 XE
Con-rod bearing			Lower con-rod bearing shell
			Colour code	Thickness	Code
			Code		GM 985.3
	Standard size	mm	-	1.485 - 1.497	264 N
	Undersize (0.25)	mm	blue	1.610 - 1.622	265 A
	Undersize (0.50)	mm	white	1.735 - 1.747	266 B
			Upper con-rod bearing shell
	Standard size	mm	-	1.485 - 1.497	264 N
	Undersize (0.25)	mm	blue	1.610 - 1.622	265 A
	Undersize (0.50)	mm	white	1.734 - 1.747	266 B
Perm. con-rod play		mm	0.019 - 0.071

Illustration: Z 18 Xe (Continued)

Crank Drive, Cylinder Block

1. Index – identification of cylinder bore
2. Cylinder bore
3. 3-part (steel), 2 oil scraper rings, 1 expander
4. Tapered compression ring or double trapezoidal ring
5. Rectangular compression ring
6. Piston diameter

Engine				Z 18 XE
Ø Cylinder bore
	Standard size
		Coefficient 99	mm	80,485 - 80,495
		Coefficient 00	mm	80,495 - 80,505
		Coefficient 01	mm	80,505 - 80,515
		Coefficient 05	mm	80,545 - 80,555
	Oversize 1)
		Coefficient 00 + 0.5	mm	80,995 - 81,005
Ø Piston
	Standard size
		Coefficient 99	mm	80,455 - 80,465
		Coefficient 00	mm	80,465 - 80,475
		Coefficient 01	mm	80,475 - 80,485
		Coefficient 05	mm	80,515 - 80,525
	Oversize 1)
		Coefficient 00 + 0.5	mm	80.956 - 80,975
Piston clearance			mm	0.02 - 0.04
Piston projection			mm	0.0

Engine				Z 18 XE
Piston rings
	Rectangular compression ring
		Height	mm	1.20
		Gap	mm	0.30 - 0.50
		Vertical play	mm	0.03 - 0.05
	Tapered compression ring
		Height	mm	1.20
		Gap	mm	0.30 - 0.50
		Vertical play	mm	0.03 - 0.05
	Oil scraper ring
		Height	mm	2.00
		Gap	mm	0.40 - 1.40
		Vertical play	mm	0.01 - 0.03
Ring gap distribution 2)			°	120

Engine				Z 18 XE
Piston pin
	Length		mm	57
	Diameter		mm	21
	Bearing			shrunk in con-rod
	Clearance
		in piston	mm	0.010 - 0.021
		in con-rod	mm	0.0

1

) After re-boring, the old index must be invalidated and the new oversizing index must be embossed

2

) 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.