Designations
- 1.8 l — BZB, CDAA, CDAB
- 2.0 l — CCZA
Cylinder firing order 1-3-4-2
Cylinder diameter // piston stroke, mm
- 1.8 l — 82.5 // 84.2
- 2.0 l — 82.5 // 92.8
Cylinder capacity, cm³
- 1.8 l - 1798
- 2.0 l - 1984
Maximum power, kW (hp)
- BZB (at 5000-6200 rpm) — 118 (160)
- CDAA (at 4500-6200 rpm) — 118 (160)
- CDAB (at 4300-6200 rpm) — 112 (152)
- CCZA (at 5100-6000 rpm) — 147 (200)
Maximum torque, Nm
- BZB, CDAB (at 1500-4200 rpm) — 250
- CDAA (at 1500-4500 rpm) — 250
- CCZA (at 1700-5000 rpm) — 280
Compression ratio: 9.6:1
Compression pressure, bar
- New engine - 11-14
- Minimum acceptable - 7
Maximum permissible variation in compression pressure in different cylinders, bar — 3
Engine oil pressure at which the D/V is triggered, bar
- D/V "F378" low pressure engine oil (except "BZB", upper) - 0.55 - 0.85
- D/V "F22" engine oil pressure (except "BZB", lower) - 2.15 - 2.95
- D/V "F1" engine oil pressure (only "BZB") — 1.2 - 1.6
Engine oil pressure at 80°C, bar
- At idle speed (checked on "F378") - 1.2 - 2.1
- At 2000 rpm (up to 1000 km of run, on "F378") allowed - 3.0 - 4.0
- At 2000 rpm (more than 1000 km, on "F378") - 1.6 - 2.1
- At 2000 rpm (on "F1") - 2.7 - 4.5
- At 3700 rpm (on "F378") - 3.0 - 4.0
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 — 1.6 - 1.9
Maximum permissible deviation from flatness of the lower mating surface of the cylinder head, mm — 0.05
Axial clearance of camshafts, mm — 0.05 - 0.17
Maximum permissible runout of the camshaft, mm - 0.04
Inlet/outlet valve plate diameter, mm ±0.10 — 33.85 // 28.0
Inlet//outlet valve stem diameter, mm ±0.007 — 5.98 // 5.965
Length of intake and exhaust valve, mm — 103.97 // 101.87
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 - 0.8
Nominal piston diameter // cylinder, mm — 82.465 // 82.51
Maximum permissible deviation of the actual cylinder diameter¹ from nominal, mm — 0.08
Maximum permissible deviation of the actual piston diameter² from nominal, mm — 0.04
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 // 0.8
- Oil scraper ring — 0.25 - 0.50 // 0.8
Clearance of new/used piston rings in piston grooves, mm
- Compression rings - 0.06 - 0.09 // 0.20
- Oil scraper ring — 0.03 - 0.06 // 0.15
Axial clearance of connecting rod bearings, mm
- New - 0.10 - 0.35
- Wear limit - 0.40
Nominal diameter of crankshaft journals, mm
- Root - 58.00
- Connecting rod - 47.80
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), 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.