| Cylinder head | |
| Maximum permissible non-flatness of the lower surface of the head cylinder block |
N/A
|
| Cylinder head height |
140 mm
|
| Valve seat width |
1.4 – 1.8 mm
|
| Valves | |
| Height of valve guide bushing in cylinder head |
11.20 – 11.50 mm
|
| Valve stem diameter: | |
| – inlet valve: | |
| • nominal (K) |
5.955 – 5.970 mm
|
| • 1st size up (0.075 mm - K1) |
6.030 – 6.045 mm
|
| • 2nd larger size (0.150 mm- K2) |
6.105 – 6.120 mm
|
| – exhaust valve: | |
| • nominal (K) |
5.945 – 5.960 mm
|
| • 1st size up (0.075 mm - K1) |
6.020 – 6.035 mm
|
| • 2nd larger size (0.150 mm- K2) |
6.095 – 6.110 mm
|
| Valve stem outlet |
less than 0.03 mm
|
| Valve guide bore diameter: | |
| – nominal (K) |
6.000 – 6.012 mm
|
| - 1st larger size (0.075 mm - K1) |
6.075 – 6.090 mm
|
| - 2nd larger size (0.150 mm- K2) |
6.150 – 6.165 mm
|
| Clearance between valve stem and valve guide |
N/A
|
| Valve length: | |
| - new |
97.1 – 97.2 mm
|
| - minimum |
96.9 – 97.0 mm
|
| Valve Plate Diameter: | |
| - inlet valve |
28.9 – 29.1 mm
|
| - exhaust valve |
25.9 – 26.1 mm
|
| Cylinder block | |
| Maximum permissible flatness |
N/A
|
| Cylinder diameters: | |
| - standard: | |
| • size group 8 |
83.975 – 83.985 mm
|
| • size group 99 |
83.985 – 83.995 mm
|
| • size group 00 |
83.995 – 84.005 mm
|
| • size group 01 |
84.005 – 84.015 mm
|
| • size group 02 |
84.015 – 84.025 mm
|
| – increased size (0.5 mm) |
N/A
|
| Maximum cylinder ovality |
N/A
|
| Maximum cylinder taper |
N/A
|
| Pistons and rings | |
| Piston diameter: | |
| - standard: | |
| • size group 8 |
N/A
|
| • size group 99 |
N/A
|
| • size group 00 |
N/A
|
| • size group 01 |
N/A
|
| • size group 02 |
N/A
|
| – increased size (0.5 mm) |
N/A
|
| Piston clearance in cylinder |
N/A
|
| Piston ring lock clearances (installed in the hole): | |
| - upper and lower sealing rings |
0.3 – 0.5 mm
|
| - oil scraper ring |
0.4 – 1.4 mm
|
| Piston ring clearance in the piston: | |
| - upper and lower sealing rings |
0.02 – 0.04 mm
|
| - oil scraper ring |
0.01 – 0.03 mm
|
| Piston ring thickness: | |
| – upper sealing ring: | |
| • x20DTL engine |
2.00 mm
|
| • x20DTH engine |
2.50 mm
|
| - lower sealing ring: | |
| • x20DTL engine |
1.75 mm
|
| • x20DTH engine |
2.00 mm
|
| - oil scraper ring |
3.0 mm
|
| Piston pins | |
| Diameter |
29 mm
|
| Length |
68 mm
|
| Connecting rod | |
| Lower connecting rod end side clearance |
0.07 – 0.28 mm
|
| Crankshaft | |
| Axial play |
0.05 – 0.15 mm
|
| Main journal diameters: | |
| – 1st size group (green) |
67.966 – 67.974 mm
|
| – 2nd size group (brown) |
67.974 – 67.982 mm
|
| – 1st reduced (0.25 mm) |
67.716 – 67.732 mm
|
| – 2nd reduced (0.50 mm) |
67.466 – 67.482 mm
|
| Connecting rod journal diameters: | |
| - standard |
48.971 to 48.990 mm
|
| – 1st reduced (0.25 mm) |
48.721 to 48.740 mm
|
| – 2nd reduced (0.50 mm) |
48.471 to 48.490 mm
|
| Maximum ovality |
0.03 mm
|
| Maximum taper |
N/A
|
| Main bearing working clearance |
0.016 – 0.069 mm
|
| Operating clearance of the lower connecting rod bearing |
0.010 – 0.061 mm
|
Technical characteristics of the 2.0L diesel engine (Opel Vectra B)
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