Designation: CDVA
The firing order of the cylinders is 1-4-3-6-2-5
Cylinder angle - 10.6°
Cylinder diameter // piston stroke, mm — 89 // 96.4
Cylinder capacity, cm³ — 3597
Maximum power, kW (hp) at 6000 rpm - 191 (260)
Maximum torque, Nm at 2500-5000 rpm — 350
Compression ratio: 11.4:1
Compression pressure, bar
- New engine - 11-13
- Minimum allowed - 8
Maximum permissible variation in compression pressure in different cylinders, bar — 3
Engine oil pressure at which the D/V operates, bar — 0.7 - 1.1
Engine oil pressure at 80°C, bar
- At 1500 rpm - not less than 1.7
- At 2000 rpm - 3.0 - 5.5
Engine oil pressure for opening the pressure reducing valve of the engine "BZB", bar - no more than 7.0
Engine oil pressure for opening the oil injector valve, bar — 2.0
Maximum permissible deviation from flatness of the lower mating surface of the cylinder head, mm — 0.05
Maximum permissible axial clearance of the camshaft (with the middle cover installed), mm — 0.40
Inlet/outlet valve plate diameter, mm — 33.20 // 30.20
Inlet//outlet valve stem diameter, mm — 5.98 // 5.97
Length of inlet/outlet valve, mm
- Short valves - 102.46 // 102.20
- Long valves - 136.36 // 136.20
The angle of the working chamfer of the inlet and outlet valve is 44°40'
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 - 0.8
Minimum permissible distance from the end of the valve stem to the plane of the cylinder head (controlled during valve seat processing), mm
- Short intake and exhaust valves - 31.8
- Long intake and exhaust valves - 10.2
2 Dimensions for machining the inlet/outlet valve seat (values are given for 3.6L engines), mm
a Diameter 32.8 // 29.8
b Maximum allowable processing size (the difference between the current and minimum permissible distance from the end of the valve stem to the upper plane of the cylinder head, see above)
from 0.9+1.5//1.2+1.7
d no more than 38.0 // no more than 35.0
r2 radius 2.0
Z Lower surface of cylinder head
α Valve seat angle (45°)
β Upper correction angle (30°)
γ Lower correction angle (60°)
Nominal piston diameter // cylinder, mm — 88.945 // 89.010
(Data taken from an online portal: Skodabook.ru)
Maximum permissible deviation of the actual cylinder diameter¹ from nominal, mm — 0.08
Maximum permissible deviation of the actual piston diameter² from nominal, mm — 0.06
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
- Rectangular ring - 0.30 - 0.45 // 1.0
- Conical section ring - 0.30 - 0.50 // 1.0
- Oil scraper ring — 0.20 - 0.90 // 1.2
Clearance of new/used piston rings in piston grooves, mm
- Rectangular ring - 0.04 - 0.06 // 0.12
- Conical section ring - 0.03 - 0.06 // 0.15
- Oil scraper ring — 0.02 - 0.06 // 0.15
Nominal diameter of crankshaft journals, mm
- Root - 59.958 - 59.978
- Connecting rod — 53.958 - 53.978
Crankshaft axial clearance, mm
- New shaft - 0.07 - 0.23
- Wear limit - 0.30
Pressing depth of needle bearing into crankshaft, mm — 2.0
¹ Measured at three cylinder depths (in the center and at a distance of 10 mm from the upper and lower edges) perpendicular to its axis, each time in two mutually perpendicular directions (a total of 6 dimensions).
² Measured at a distance of 15 mm from the lower edge of the piston skirt perpendicular to the axis of the piston pin.