Cylinder head
Permissible deformation of the cylinder head surface - 0.05 mm
Permissible deformation of surfaces to collectors:
- engines 4A-F/FE intake side - 0.05 mm, exhaust manifold side - 0.10 mm
- 3S-FE engines all - 0.08 mm
The maximum surface treatment layer of the cylinder head is 0.10 mm
Valve seat chamfer angle - 45°
Correction angle See corresponding fig. 1
Valve seat chamfer width:
- engines 4A-F/FE all valves - 1.0-1.4 mm
- 3S-FE engines all valves - 1.2-1.6 mm
- diesel engine - 1.2-1.6 mm (intake) , 1.6—2.0 mm (graduation)
Valves
Valve length:
- engines 4A-F/FE 91.45 mm (inlet) — 91,9 (high school graduation)
- engines 3S-FE 100.6 mm (inlet) — 100,45 (high school graduation)
- diesel engine - 105.7 mm (inlet), 105,35 (high school graduation)
Minimum valve length:
- engines 4A-F/FE - 90.95 mm (inlet), 91,40 (high school graduation)
- 3S-FE engines - 100.1 mm (inlet), 100,0 (high school graduation)
- diesel engine - 105.20 mm (inlet), 104,85 (high school graduation)
Valve stem diameter (in brackets for diesel engine):
- intake valves - 5.970-5.985 mm (7.975-7.990 mm)
- exhaust valves - 5.965-5.980 mm (7.960-7.975 mm)
Valve stem play (in brackets for diesel engine):
- intake valves - 0.025-0.060 mm (0.020-0.055 mm)
- exhaust valves - 0.030-0.065 mm (0.035-0.070 mm)
Maximum valve stem play:
- intake valves - 0.08 mm (0.11 mm)
- exhaust valves - 0.10 mm (0.12 mm)
Minimum valve plate edge thickness:
- engines 4A-F/FE - 1.0 mm (all valves)
- 3S-FE engines - 0.8-1.2 mm (intake), 0.5 mm (graduation)
- diesel engine - 0.9 mm (intake), 1.0 mm (graduation)
Guide bushings:
- Inner diameter - 6.01-6.03 mm (8.01-8.03 mm)
Outside diameter:
- engines 4A-F/FE - 11,000-11,027 mm
- 3S-FE engines - 11.048-11.059 mm
- diesel engine - 13.040-13.051 mm
Repair size - +0.05 mm
- engines 4A-F/FE - 1 1,050-11,077 mm
- 3S-FE engines - 11.098-11.109 mm
- diesel engine - 13.090-13.101 mm
Installation temperature - 80-100°C (16 valve engines), cold (diesel engine)
Valve springs:
Free length.
- gasoline engines - 43.80 mm (4A-F/FE), 45.0 mm (3S-FE)
- diesel engines - 47.50 mm
Installation length (16 valve engines) — 34.7 mm
Installation length (diesel engines) — 40.3 mm
Installation load
- engines 4A-F/FE - 34.7 mm at 15.8 kg
- 3S-FE engines - 34.7 mm at 16.7-19.3 kg
- diesel engine - 40.3 mm at 22.9-25.3 kg
Permissible deformation on the top side:
- 16 valve engines - 2.5 mm (4A-F/FF), 2.0 mm (3S-FE)
- diesel engine - 2.0 mm
Camshafts
Axial play of camshafts:
- engines 4A-F/FE, camshaft - 0.030-0.085 mm intake valve shaft
- engines 4A-F/FE, camshaft - 0.035-0.090 mm exhaust valve shaft
- 3S-FE engines, intake camshaft - 0.045-0.10 mm
- 3S-FE engines, exhaust camshaft - 0.03-0-0.085 mm
- diesel engine - 0.08-0.18 mm
Maximum axial play:
- 16 valve engines - 0.11 mm (4A-F/FE), 0.12 mm (3S-FE)
- diesel engine - 0.25 mm
Camshaft bearing play:
- engines 4A-F/FE - 0.035-0.072 mm
- 3S-FE engines - 0.025-0.062 mm
- diesel engine - 0.037-0.073 mm
- maximum axial play - 0.10 mm
Bearing journal diameter - 4A-F/FE engines:
- bearing No. 1, exhaust valve shaft - 24.949-24.965 mm
- all other bearing journals - 22.949-22.965 mm
Bearing journal diameter - 3S-FE engines: 26.959-26.975 (all bearing journals)
Bearing journal diameter - diesel engines: 27.979-27.995 (all bearing journals)
Jaw height | Engines 4A-F/FE | Engines 3S-FE |
intake valve cams | 35.21-35.31 mm | 35.310-35.410 mm |
exhaust valve cams | 34.91-35.01 mm | 35.560-35.660 mm |
intake valve cams - diesel engines | 47.425 mm | |
Exhaust valve cams - diesel engines | 46.835 mm |
Maximum wear of cams in height - less than 0.5 mm
Camshaft gear engagement play (16 valve engines) — 0.020-0.20 mm
— wear limit — 0.30 mm
Valve control | Engines 4A-F/FE | Engines 3S-FE |
Intake valve opening | 18°BTDC | 6°BTDC |
Closing the intake valve | 46°after TDC | 48°after TDC |
Opening the exhaust valve | 52°BTDC | 54°BTDC |
Closing the exhaust valve | 12°after TDC | 6°after TDC |
Diesel engines | ||
Intake valve opening | 7°BTDC | |
Closing the intake valve | 39°after TDC | |
Opening the exhaust valve | 51°BTDC | |
Closing the exhaust valve | 6°after TDC |
Pistons, piston pins, piston rings
Piston Rings - 2 compression rings, 1 three-piece oil ring
Piston pins - Press-fit, on a diesel engine, retaining rings in the piston bores
Installation temperature:
- 16 valve engines - Piston temperature 20°C
- diesel engines - Piston temperature 80°C
Installation position Mark "Vorn" on the piston and connecting rod
Piston diameter | Engines 3S-FE | Engines 4AF/FE |
nominal diameter | 85.945—85.975 mm | 80.93—80.96 mm |
increased size | No | 81.43—81.46 mm |
Diesel engines
- nominal diameter - 85.950-85.980 mm
- increased size - 86.450-86.480 mm
Engines 4A-F/FE | Engines 3S-FE | |
Piston clearances | 0.06—0.08 mm | 0.045 0.065 mm |
Gaps in piston ring locks: | ||
top ring | 0.25—0.35 mm | 0.27—0.49 mm |
middle ring | 0.15—0.30 mm | 0.27—0.50 mm |
oil scraper ring | 0.10—0.60 mm | 0.20—0.79 mm |
Gaps in locks - wear limits: | ||
top ring | 1.07 mm | 0.79 mm |
middle ring | 1.02 mm | 0.80 mm |
oil scraper ring | 1.62 mm | 1.09 mm |
Height play of rings in piston grooves: | ||
top ring | 0.04—0.08 mm | 0.03—0.07 mm |
middle ring | 0.03—0.07 mm | 0.03—0.07 mm |
Diesel engine:
Gaps in piston ring locks:
- upper compression ring - 0.30-0.54 mm
- second ring - 0.25-0.52 mm
- oil scraper ring (side rings) — 0.20-0.82 mm
— Maximum clearances in locks:
- compression rings - 1.30 mm
- oil scraper ring - 1.12 mm
Height play of rings in piston grooves:
- upper compression ring - 0.20-0.065 mm
- second ring - 0.040-0.10 mm
- oil scraper ring - 0.030-0.070 mm
— Maximum clearances along the height of all rings — 0.2 mm
Piston pin play in the connecting rod hole - 0.007-0.015 mm
Maximum piston pin play - 0.05 m/l
Crankshaft
Number of main bearings - 5
Longitudinal fixation - Thrust half rings at the middle bearing
Main/Conrod Bearing Construction - Thin-walled bearing shells, galvanized copper-lead alloy
Axial play of the crankshaft - 0.02-0.22 mm (16 valve engines), 0.04—0.24 mm (diesel engines)
— wear limit 0.30 mm
Radial play of main bearings:
- nominal backlash, engine 4A-F/FE - 0.015-0.033 mm
- nominal play, 3S-FE engine, bearing No. 3 - 0.028-0.047 mm
- nominal play, 3S-FE engine, except for bearing No. 3 - 0.018-0.037 mm
- nominal play, diesel engine - 0.034-0.065 mm
- maximum backlash (16 valve 0.10 mm (engine 4A-F/FE),.08 mm motors) (3S-FE engine)
- maximum play, diesel engine - 0.10 mm
Radial play of connecting rod bearings:
- nominal backlash - 4A-F/FE engine - 0.020-0.051 mm
- engine 3S-FE - 0.024-0.055 mm
- diesel engine - 0.036-0.064 mm
Wear limit - 16 valve engines - 0.08 mm
— diesel engine — 0.10 mm
Main bearing journal diameter:
- nominal diameter - engine 4A-F/FE -47.994-48.000 mm
- engine 3S-FE - 54,985-55,000 mm
- diesel engine - 56,985-57,000 mm
- Reduced size - 0.25 mm
- Maximum taper or ovality - 0.02 mm
Diameter of connecting rod bearing journals:
- nominal diameter - 4A-F/FE engine - 38.985-40.000 mm
- engine 3S-FE - 47,985-48,000 mm
- diesel engine -50.488-50.500 mm
- Reduced size - 0.25 mm
- Maximum taper or ovality - 0.02 mm
- Thickness of pressure spacers - 16 valve engines - 2.440-2.490 mm
- diesel engine - 2.433-2.480 mm
- Increased size - 0.125 mm - 16 valve engines - 2.503-2.553 mm
- diesel engine - 2.555-2.605 mm
- Increased size - 0.250 mm
- diesel engine - 2,680-2,730 mm
- Maximum runout of flywheel surface - 0.10 mm
Connecting rods
Axial play of connecting rods:
- nominal backlash - 4A-F/FE engine - 0.15-0.25 mm
- 3S-FE engine - 0.16-0.31 mm
- diesel engine - 0.08-0.30 mm
- wear limit - 0.30 mm (16 valve engines), 0.40 mm (diesel engine)
Maximum bending of connecting rods - 0.05 mm (all engines)
Maximum torsion of connecting rods: 0.05 mm (16 valve engines), 0.15 mm (diesel engine)
Bearing play see chapter "Crankshaft"