Vauxhall Workshop Service and Repair Manuals > Astra H > J Engine and Engine Aggregates | DOHC diesel engine | Cylinder Block | Specifications | Crankshaft drive, cylinder block

Crankshaft drive, cylinder block > < Engine Number/Engine Code

Crankshaft drive, cylinder block

Illustration

1.	Main bearing
2.	Con-rod bearing
3.	Guide bearing
4.	Marking on main bearing journal
5.	Bearing shell colour code
6.	Con-rod marking
7.	Marking, bearing bore diameter in cylinder block

Object Number: 2414881 Size: DEFAULT

Engine			Z 17 DTL / Z 17 DTH
Con-rod bearing			Upper con-rod bearing shell
			Thickness	Colour code	Con-rod marking
	Standard size	mm	1.508 - 1.512	blue	I
	Undersize (0.004)	mm	1.504 - 1.508	Black	II
	Undersize (0.008)	mm	1.500 - 1.504	brown	III
			Lower con-rod bearing shell
			Thickness	Colour code	Con-rod marking
	Standard size	mm	1.508 - 1.512	blue	I
	Undersize (0.004)	mm	1.504 - 1.508	Black	II
	Undersize (0.008)	mm	1.500 - 1.504	brown	III

Engine				Z 17 DTL / Z 17 DTH
Con-rod
	Permissible weight difference of con-rods without piston and bearing shells inside the engine		g	4
	Twisting of con-rod		mm	0.05
	Parallel status of con-rods		mm	0.05
Con-rod markings/bearing clearance
	I	blue	mm	0.025 - 0.054
	II	Black	mm	0.027 - 0.056
	III	brown	mm	0.029 - 0.058
Perm. con-rod play			mm	0.025 - 0.058

Engine				Z 17 DTL / Z 17 DTH
Bearing bore diameter in cylinder block
	1		mm	55.992 - 56.000
	2		mm	55.984 - 55.992
	3		mm	55.976 - 55.984
Main bearing journal diameter
	1 notch		mm	51.928 - 51.938
	2 notches		mm	51.918 - 51.928
Size marking on cylinder block		Number of notches on the crankshaft		Colour coding of the bearing shell required
1		1 notch	mm	Black
1		2 notches	mm	blue
2		1 notch	mm	brown
2		2 notches	mm	Black
3		1 notch	mm	green
3		2 notches	mm	brown
Perm. crankshaft bearing play			mm	0.030 - 0.058
Perm. crankshaft end play			mm	0.030 - 0.120
Perm. out-of-round			mm	0.040 - 0.082

Illustration

1.	Cylinder Bore
2.	Double bevelled ring with spiral-type expander
3.	Tapered compression ring or double trapezoidal ring
4.	Rectangular compression ring
5.	Piston diameter

Object Number: 3446637 Size: DEFAULT

Engine				Z 17 DTL	Z 17 DTH
Ø Cylinder bore
	Standard size
		Guide figure A	mm	79.00 - 79.01
		Guide figure B	mm	79.01 - 79.02
		Guide figure C	mm	79.02 - 79.03
Ø Piston
	Standard size
		Guide figure A	mm	78.93 - 78.939
		Guide figure B	mm	78.94 - 78.949
		Guide figure C	mm	78.95 - 78.959
Piston play			mm	0.070 - 0.071	0.050
Piston projection			mm	0.63 - 0.83

Piston projection	Thickness of cylinder head gasket		Size	Number of holes
	used	New		Version I	Version II
0.630 - 0.696 mm	1.350 mm	1.450 mm	A	-	1
0.697 - 0.763 mm	1.400 mm	1.500 mm	B	1	2
0.764 - 0.830 mm	1.450 mm	1.550 mm	C	2	3

Engine				Z 17 DTL / Z 17 DTH
Piston Rings
	1st compression ring (T)
		Height	mm	2.00
		Gap	mm	0.250 - 0.350
		Vertical play	mm	0.090 - 0.122
	2nd compression ring (T2)
		Height	mm	1.50
		Gap	mm	0.200 - 0.300
		Vertical play	mm	0.040 - 0.090
	Oil scraper ring
		Height	mm	3.00
		Gap	mm	0.200 - 0.400
		Vertical play	mm	0.025 - 0.065
Ring gap distribution 1)			°	120

Engine				Z 17 DTL
Piston Pins
	Length		mm	64.0
	Diameter		mm	27.0
	Bearing			Floating in con-rod
	Play
		in piston	mm	0.002 - 0.012
		in con-rod	mm	0.002 - 0.015

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.

J Engine and Engine Aggregates
DOHC diesel engine
Cylinder Block
Specifications
Crankshaft drive, cylinder block

Crankshaft drive, cylinder block > < Engine Number/Engine Code