Designations - BXE, BLS
The firing order of the cylinders is 1-3-4-2
Cylinder diameter // piston stroke, mm 79.5 // 95.5
Cylinder capacity, cm³ — 1896
Maximum power, kW (hp) at 4000 rpm — 77 (105)
Maximum torque, Nm at 1900 rpm - 250
Compression ratio - 18.5:1
Compression pressure, bar
- New engine - 25-31
- Minimum allowed - 19
Maximum permissible variation in compression pressure in different cylinders, bar — 5
Engine oil pressure at which the D/V operates, bar — 0.55 - 0.85
Engine oil pressure at 80°C, bar
- At idle speed not less than - 0.8
- At 2000 rpm not less than - 2.0
Engine oil pressure for opening the pressure reducing valve, bar - 7.0
Engine oil pressure for opening the oil injector valve, bar — 2.5 - 3.2
Maximum permissible deviation from flatness of the lower mating surface of the cylinder head, mm — 0.1
Maximum permissible runout of the camshaft, mm - 0.04
Maximum permissible radial clearance of the camshaft is 0.11
Maximum permissible axial clearance of the camshaft is 0.15
- Inlet/outlet valve plate diameter, mm — 35.95 // 31.45
- Inlet//outlet valve stem diameter, mm — 6.980 // 6.965
- Length of intake and exhaust valve, mm — 89.45 // 89.05
The angle of the working chamfer of the inlet and outlet valve is 45°
Clearance of the new valve in the corresponding guide bushing (measured on the plate when the end of the valve stem is flush with the end of the sleeve), mm - 1.3
Minimum permissible distance from the end of the valve stem to the plane of the cylinder head (controlled during valve seat processing), mm
- Inlet valve - 43.4
- Exhaust valve - 43.2
3 Dimensions for machining the inlet valve seat (values are given for 1.9 l engines), mm
Nominal piston diameter // cylinder, mm — 79.47 //79.51
(Information presented on the website: SKODABOOK.ru)
Maximum permissible deviation of the actual cylinder diameter¹ from nominal, mm — 0.10
Maximum permissible deviation of the actual piston diameter² from nominal, mm — 0.04
Clearances in the locks of new // used piston rings (the ring is inserted into the cylinder perpendicular to its axis at a distance of 15 mm from the lower edge of the cylinder), mm
- Compression rings - 0.20 - 0.40 // 1.0
- Oil scraper ring — 0.25 - 0.50 // 1.0
Clearance of new/used piston rings in piston grooves, mm
- Upper compression ring - 0.06 - 0.09 // 0.25
- Lower compression ring - 0.05 - 0.08 // 0.25
- Oil scraper ring — 0.03 - 0.06 // 0.15
Maximum permissible axial clearance of connecting rod bearings, mm — 0.37
Nominal diameter of crankshaft journals, mm
- Root - 54.00
- Connecting rod - 47.80
Crankshaft axial clearance, mm
- New shaft - 0.07 - 0.17
- Wear limit - 0.37
¹ Measured at three cylinder depths (in the center and at a distance of 10 mm from the upper and lower edges), each time - in two mutually perpendicular directions (total - 6 dimensions).
² Measured at a distance of 10 mm from the lower edge of the piston skirt perpendicular to the axis of the piston pin.