Designation - SAHS
The order of operation of the cylinders is 1-3-4-2
Cylinder diameter // piston stroke, mm — 76.5 // 75.6
Volume of cylinders, cm3 — 1390
Maximum power, kW (hp) at 5000 rpm - 92 (125)
Maximum torque, Nm at 1500-4000 rpm - 200
Compression ratio - 10.0:1
Compression pressure, bar
- New engine - 10-15
- Minimum allowable - 7
The maximum allowable spread of compression pressure in different cylinders, bar - 3
Engine oil pressure at which D / V is activated, bar - 0.3 - 0.7
Engine oil pressure at 80°С and 2000 rpm, bar — not less than 2.0
Engine oil pressure to open the pressure reducing valve, bar — no more than 7.0
The maximum allowable deviation from the flatness of the lower mating surface of the cylinder head (processing is not allowed), mm — 0.05
The minimum allowable height of the cylinder head, mm - 108.25
Minimum allowable distance from the end of the valve stem to the plane of the cylinder head (controlled when machining the valve seat), mm - 7.6
The maximum allowable axial play of the camshaft (with camshaft housing removed and end cap installed), mm — 0.4
Inlet//outlet valve disc diameter, mm — 29.5 // 26.0
Inlet//outlet valve stem diameter, mm — 5.973 // 5.953
Inlet//outlet valve length, mm — 100.9 // 100.5
The angle of the working chamfer of the intake and exhaust valves - 45°
1 Inlet//outlet valve seat machining dimensions (values are given for a 1.4 l engine), mm
a Diameter 28.7 // 25.0
b Maximum allowable processing size (difference between the current and the minimum allowable distance from the end of the valve stem to the upper plane of the cylinder head, see above)
from 1.5-1.8 // approximately 1.8
Z Bottom surface of the cylinder head
α Valve seat angle (45°)
β Upper correction angle (30°)
γ Lower correction angle (60°)
Backlash of the new inlet and outlet valve in the corresponding guide bush (when measured, the end of the valve stem is flush with the end of the sleeve), mm — 0.8
Nominal piston diameter, mm - 76.46
Maximum permissible deviation of the actual cylinder diameter1 from the nominal, mm - 0.08
Maximum permissible deviation of the actual piston diameter2 from the 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
- 1st compression ring 0.20 - 0.40 // 1.0
- 2nd compression ring 0.40 - 0.60 // 1.0
Oil scraper ring 0.20 - 0.80 // no data
Fitting play of new // used piston rings in the piston grooves, mm
- 1st compression ring 0.04 - 0.08 // 0.15
- 2nd compression ring 0.02 - 0.06 // 0.15
Oil scraper ring - Not measured
Nominal diameter of the main // connecting rod journal of the crankshaft, mm - 54.00 // 47.80
Axial backlash of a cranked shaft, mm
- New shaft - 0.07 - 0.24
- Wear limit - 0.26
1 Measured at three cylinder depths (in the center and at a distance of 10 mm from the top and bottom edges), each time in two mutually perpendicular directions (total - 6 measurements).
2 Measured at a distance of 12 mm from the bottom edge of the piston skirt, perpendicular to the axis of the piston pin.