Opel Vectra B

Since 1995 of release

Repair and car operation

3.5.2.1. Petrol engine SOHC of 1,6 l

THE GENERAL DATA

Head of the block of cylinders
As much as possible admissible неплоскосность the bottom surface of a head of the block of cylinders	0,05 mm
Height of a head of the block of cylinders	95.90 – 96.10 mm
Width of a saddle of the valve:
– The inlet valve	1.3 – 1.5 mm
– The final valve	1.6 – 1.8 mm
Valves
Height of the directing plug of the valve in a cylinder head	80.85 – 81.25 mm
Diameter of a core of the valve:
– The inlet valve:
• the nominal	6.998 – 7.012 mm
• 1st increased size (0.075 mm – K1)	7.073 – 7.087 mm
• 2nd increased size (0.150 mm – K2)	7.148 – 7.162 mm
• 3rd increased size (0.250 mm – A)	7.248 – 7.262 mm
– The final valve:
• the nominal	6.998 – 7.012 mm
• 1st increased size (0.075 mm – K1)	77.053 – 7.067 mm
• 2nd increased size (0.150 mm – K2)	7.128 – 7.142 mm
• 3rd increased size (0.250 mm – A)	7.228 – 7.262 mm
Exit of a core of the valve	Less than 0.03 mm
Diameter of an aperture of the directing plug of the valve:
– The nominal	7.030 – 7.050 mm
– 1st increased size (0.075 mm – K1)	7.105 – 7.125 mm
– 2nd increased size (0.150 mm – K2)	7.180 – 7.200 mm
– 3rd increased size (0.250 mm – A)	7.280 – 7.300 mm
Backlash between a core and directing the valve:
– The inlet valve	0.018 – 0.052 mm
– The final valve	0.038 – 0.072 mm
Length of the valve:
– The new	101.5 mm
– The minimum	101.1 mm
Height of lifting of a rod of the valve	13.75 – 14.35 mm
Diameter of a plate of the valve:
– The inlet valve	38 mm
– The final valve	31мм
The block of cylinders
As much as possible admissible неплоскосность	0.05 mm
Diameters of cylinders:
– The standard:
• group of the sizes 6	78.955 – 78.965 mm
• group of the sizes 7	78.965 – 78.975 mm
• group of the sizes 8	78.975 – 78.985 mm
– The increased size (0.5 mm)	79.465 – 79.475 mm
– The maximum ovality of the cylinder	0.013 mm
– Maximum конусность the cylinder	0.013 mm
Pistons and rings
Diameter of the piston:
– The standard:
• group of the sizes 6	78.935 – 78.945 mm
• group of the sizes 7	78.945 – 78.955 mm
• group of the sizes 8	78.955 – 78.965 mm
– The increased size (0.5 mm) – group of the sizes 7 + 0.5	79.445 – 79.455 mm
Piston backlash in the cylinder	0.02 ± 0.01 mm
Backlashes of the lock of a piston ring (established in an aperture):
– The top and bottom sealing rings	0.3 – 0.5 mm
– маслосъемное a ring	0.4 – 1.4 mm
Thickness of a piston ring:
– The top sealing ring	1.2 mm
– The bottom sealing ring	1.5 mm
– маслосъемное a ring	3.0 mm
Backlash of a piston ring in the piston	N/A
Piston fingers
Diameter	18 mm
Length	55 mm
Backlash of a piston finger in the piston	0.009 – 0.012 mm
Rod
Lateral backlash of the bottom head of a rod	0.07 – 0.24 mm
Cranked shaft
Axial люфт	0.1 – 0.2 mm
Diameters of radical necks:
– The nominal size	54.980 – 54.997 mm
– 1st repair size – 0,25	54.730 – 54.747 mm
– 2nd repair size – 0,50	54.482 – 54.495 mm
Diameters шатунных necks:
– The nominal size	42.971 – 42.987 mm
– 1st repair size – 0,25	42.721 – 42.737 mm
– 2nd repair size – 0,50	42.471 – 42.487 mm
The maximum ovality	0.04 mm
Maximum конусность	N/A
Working backlash of the radical bearing	0.017 – 0.047 mm
Working backlash of the bearing of the bottom head of a rod	0.019 – 0.071 mm