cylinder head | |
Maximum allowable non-flatness of the bottom surface cylinder heads |
N/A
|
Cylinder head height |
140 mm
|
Valve seat width |
1.4 - 1.8 mm
|
valves | |
Valve guide height in cylinder head |
11.20 - 11.50 mm
|
Valve stem diameter: | |
- inlet valve: | |
nominal (K) |
5.955 - 5.970 mm
|
1st enlarged size (0.075 mm - K1) |
6.030 - 6.045 mm
|
2nd enlarged size (0.150 mm - K2) |
6.105 - 6.120 mm
|
- Exhaust valve: | |
nominal (K) |
5.945 - 5.960 mm
|
1st enlarged size (0.075 mm - K1) |
6.020 - 6.035 mm
|
2nd enlarged size (0.150 mm - K2) |
6.095 - 6.110 mm
|
Valve stem outlet |
less than 0.03mm
|
Valve guide bore diameter: | |
- nominal (K) |
6.000 – 6.012 mm
|
– 1st enlarged size (0.075 mm - K1) |
6.075 - 6.090 mm
|
– 2nd enlarged size (0.150 mm - K2) |
6.150 - 6.165 mm
|
Clearance between stem and valve guide |
N/A
|
Valve length: | |
- new |
97.1 - 97.2 mm
|
– minimum |
96.9 - 97.0 mm
|
Valve disc diameter: | |
- inlet valve |
28.9 - 29.1 mm
|
- Exhaust valve |
25.9 - 26.1 mm
|
Cylinder block | |
Maximum allowable out-of-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
|
- enlarged size (0.5 mm) |
N/A
|
Maximum cylinder out-of-roundness |
N/A
|
Maximum taper of the cylinder |
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
|
- enlarged size (0.5 mm) |
N/A
|
Piston clearance in cylinder |
N/A
|
Piston ring gaps (installed in a hole): | |
- top and bottom sealing rings |
0.3 - 0.5 mm
|
- oil scraper ring |
0.4 - 1.4 mm
|
Piston ring clearance in piston: | |
- top and bottom sealing rings |
0.02 - 0.04 mm
|
- oil scraper ring |
0.01 - 0.03 mm
|
Piston ring thickness: | |
– top sealing ring: | |
X20DTL engine |
2.00 mm
|
X20DTH engine |
2.50 mm
|
– lower sealing ring: | |
X20DTL engine |
1.75mm
|
X20DTH engine |
2.00 mm
|
- oil scraper ring |
3.0mm
|
piston pins | |
Diameter |
29 mm
|
Length |
68 mm
|
connecting rod | |
Lateral clearance of the lower head of the connecting rod |
0.07 - 0.28 mm
|
Crankshaft | |
Axial play |
0.05 - 0.15 mm
|
Diameters of main journals: | |
– 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 diameters: | |
– standard |
48.971 - 48.990 mm
|
– 1st reduced (0.25 mm) |
48.721 - 48.740 mm
|
– 2nd reduced (0.50 mm) |
48.471 - 48.490 mm
|
Maximum ovality |
0.03mm
|
Maximum taper |
N/A
|
Operating clearance of the main bearing |
0.016 - 0.069 mm
|
Connecting Rod Bearing Working Clearance |
0.010 - 0.061 mm
|
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