General information
Cylinder diameter - 03.06 mm
Stroke - 91.95 mm
Displacement - 1991 cm3 (2 liters)
Compression:
- Nominal - 11.8 bar
- Minimum - 82 bar
- Maximum cylinder difference —— 1 bar
Oil pressure in a warm jari engine 3000 rpm - 3.9-4.9 bar
Cylinder head
Permissible warping - 005 mm
Valves and valve springs
Valve disc lip height:
- Inlet - 1.1 mm
- Graduation - 1.2 mm
Valve stem diameter:
- Inlet - 5.969-5.984 mm
- Graduation - 5.965-5.979 mm
Gap between rod and guide sleeve:
- Inlet - 0.025-0.060 mm
- Graduation - 0.0076-0.165 mm
Spring:
- Non-perpendicularity - 1.55 mm
- Free length - 36.5-44.0 mm
Camshafts and tappets
Jaw height:
- Inlet - 42.97
- Graduation - 43.34
- Permissible wear of the cams - 0.15 mm
Neck diameter - 25.94-25.96 mm
Permissible ellipticity of the necks - 0.003 mm
Permissible radial runout - 0.03 mm
Bearing clearance:
- Nominal - 0.035-0.081 mm
- Maximum allowable - 0.15 mm
Shaft axial play - 0.079-0.200 mm
Pusher diameter - 29.96-29.97 mm
Gap of pushers in borings:
- Nominal - 0.025-0.066 mm
- Maximum allowable - 0.17 mm
Thermal clearance in valves (only for engines manufactured since 1998) - 0.23-0.29 mm
Crankshaft and connecting rods
Crankpins:
- Diameter - 47.94-47.96 mm
- Permissible taper - 0.005 mm
- Permissible ellipse — 0.0025 mm
- Bearing clearance - 0.013-0.038 mm
Axial play of the lower head of the connecting rod:
- Nominal - 0.12-0.26 mm
- Maximum allowable - 0.30 mm
Root necks:
- Diameter - 55.94-55.95 mm
- Permissible taper - 0.005 mm
- Permissible ellipsity - 0.0025 mm
- Permissible radial runout - 0.03 mm
- Bearing clearances:
- №3 (central) — 0.030-0.056 mm
- The rest - 0.023-0.051 mm
- Maximum allowable - 0.066 mm
Shaft end play:
- Nominal - 0.08-0.20 mm
- Maximum allowable - 0.3 mm
Cylinder block
Permissible distortion of the surface under the head - 0.05 mm
Cylinder bore diameter: Nominal - 83.00-83.02 mm
Permissible taper and ellipse - 0.01 mm
Pistons and connecting rods
Piston diameter - 82.95-03.97 mm
Clearance between piston and cylinder:
- Nominal - 0.030-0.051 mm
- Maximum allowable - 0.15 mm
Piston ring gaps:
- Compression rings
- Nominal - 0.15-0.30 mm
- Maximum allowable - 0.50 mm
- Oil scraper
- Nominal - 0.20-0.70 mm
- Maximum allowable - 0.90 mm
Ring clearance in grooves (only compression rings)
- Nominal - 0.036-0.066 mm
- Maximum allowable - 0.084 mm
Connection tightening torques, N·m
Main bearing cap bolts:
- 1st step - 17-22
- 2nd step - Tighten 90°
Nuts of the lower heads of connecting rods:
- 1st step - 22-26
- 2nd step - Tighten 90°
Bolts of the lower amplifier of the block - 19-24
* Other tightening torques for connections are given in chapter 2A.