Technical requirements of a 4-cylinder engine

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Cylinder head


Maximum gasket warpage0.10 mm
valve guide hole6.060...6.091 mm
Valve seat angle90°
Valve seat width1.4...1.7 mm

Valves - general information


inletgraduation
Valve stroke7.500...7.685 mm7.610...7.765 mm
Valve length96.870...97.330 mm96.470...96.930 mm
Valve disc diameter:
1.6 liter engine26.0 mm24.5mm
Engine displacement 1.8 and 2.0 liters32.0 mm28.0 mm
Valve stem diameter6.028...6.043 mm6.010...6.025 mm
Clearance between stem and valve guide:
Except 2.0 liter engines (release models from 05.1998)0.017...0.064 mm0.035...0.081 mm
2.0 liter engines (release models from 05.1998)0.017...0.064 mm0.017...0.064 mm

Cylinder block


Cylinder diameter - 1.6 liter engine:
Class 176.000...76.010 mm
Class 276.010...76.020 mm
Class 376.020...76.030 mm
Cylinder diameter - 1.8 liter engine:
Class 180.600...80.610 mm
Class 280.610...80.620 mm
Class 380.620...80.630 mm
Cylinder diameter - 2.0 liter engine:
Class 184.800...84.810 mm
Class 284.810...84.820 mm
Class 384.820...84.830 mm

Pistons and piston rings


Piston diameter - 1.6 liter engine:
Class 175.975...75.985 mm
Class 275.985...75.995 mm
Class 375.995...76.005 mm
Piston diameter - 1.8 liter engine:
Class 180.570...80.580 mm
Class 280.580...80.590 mm
Class 380.590...80.600 mm
Piston diameter - 2.0 liter engine (release models before 05.1998):
Class 184.770...84.780 mm
Class 284.780...84.790 mm
Class 384.790...84.800 mm
Piston diameter - 2.0 liter engine (release models from 05.1998):
Class 184.750...84.760 mm
Class 284.760...84.770 mm
Class 384.770...84.780 mm
Repair dimensions - all enginesnot provided
Clearance between cylinder and pistonno data
End gap 8 ring (established):
Top compression - engine displacement of 1.6 and 1.8 liters0.30...0.50 mm
Top compression - 2.0 liter engine0.26...0.50 mm
Second compression0.30...0.50 mm
Oil scraper - engine slave. 1.6 l0.25...1.00 mm
Oil scraper - engine slave. 1.8 l0.38...1.14 mm
Oil scraper - engine slave. 2.0 l0.40...1.40 mm

Piston pin


Diameter:
White marking/marked piston crown "A"20.622...20.625 mm
Red marking/marked piston crown "IN"20.625...20.628 mm
Blue marking/marked piston crown "WITH"20.628...20.631 mm
Gap between pin and piston:
In addition to the engine 2.0 l (release models from 05.1998)0.010...0.016 mm
Engine work. 2.0 l (release models from 05.1998)0.016...0.049 mm
The inner diameter of the pin hole in the connecting rod20.589...20.609 mm
Pin interference fit in connecting rod0.011...0.042 mm

Crankshaft


Connecting rod bearing inner diameter (established) - standard46.926...46.960 mm
Connecting rod bearing inner diameter - overhaul+0.2mm, +0.25mm
Diameter of connecting rod journals - standard46.890...46.910 mm
Operating clearance between crankpin and bearing0.016...0.070 mm
Axial play0.090...0.310 mm
Diameter of main journals - standard57.980...58.000 mm
Operating clearance between main journal and bearing0.011...0.058 mm
Inner diameter of main bearing shells (established) - standard58.011...58.038 mm
Internal diameter of liners of main bearings - repair+0.2mm, +0.25mm







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