Tables of sizes and adjustments — engine — mechanics [Toyota Carina T170]

Cylinder head

Permissible deformation of the cylinder head surface is 0.05 mm

Permissible deformation of surfaces to collectors:

• 4A-F/FE engines intake manifold side - 0.05 mm, exhaust manifold side - 0.10 mm
• 3S-FE engines all - 0.08 mm

Maximum layer of cylinder head surface treatment is 0.10 mm

The angle of the working chamfer of the valve seat is 45°

Correction angle See corresponding Fig. 1

Width of the working chamfer of the valve seat:

• 4A-F/FE engines 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 (exhaust)

Valves

Valve length:

• 4A-F/FE engines 91.45 mm (intake) - 91.9 (exhaust)
• 3S-FE engines 100.6 mm (inlet) - 100.45 (outlet)
• diesel engine - 105.7 mm (inlet), 105.35 (outlet)

Minimum valve length:

• 4A-F/FE engines - 90.95 mm (intake), 91.40 (exhaust)
• 3S-FE engines - 100.1 mm (intake), 100.0 (exhaust)
• diesel engine - 105.20 mm (inlet), 104.85 (outlet)

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):

• inlet 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 clearance:

• inlet 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 (exhaust)
• diesel engine - 0.9 mm (intake), 1.0 mm (exhaust)

Guide bushings:

• Inner diameter - 6.01-6.03 mm (8.01-8.03 mm)

Outer 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:

Length in free state.

• petrol 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 from the top side:

• 16-valve engines - 2.5 mm (4A-F/FF), 2.0 mm (3S-FE)
• diesel engine - 2.0 mm

Camshafts

Axial clearance of camshafts:

• 4A-F/FE engines, camshaft - 0.030-0.085 mm intake valve shaft
• 4A-F/FE engines, 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 clearance:

• 16-valve engines - 0.11 mm (4A-F/FE), 0.12 mm (3S-FE)
• diesel engine - 0.25 mm

Camshaft bearing clearance:

• 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 clearance - 0.10 mm

Bearing journal diameters - 4A-F/FE engines:

• bearing #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)

Height of cams	Engines 4A-F/FE	3S-FE Engines
intake cams	35.21-35.31 mm	35,310-35,410 mm
exhaust cams	34.91-35.01 mm	35,560-35,660 mm
intake cams - diesel engines	47.425 mm
exhaust cams - diesel engines	46.835 mm

Maximum wear of cams in height is 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	3S-FE Engines
Opening the intake valve	18° before TDC	6° before TDC
Closing the intake valve	46° after TDC	48° after TDC
Opening the exhaust valve	52° before TDC	54° before TDC
Closing the exhaust valve	12° after TDC	6° after TDC
Diesel engines
Opening the intake valve	7° before TDC
Closing the intake valve	39° after TDC
Opening the exhaust valve	51° before TDC
Closing the exhaust valve	6° after TDC

Pistons, piston pins, piston rings

Piston rings - 2 compression rings, 1 three-piece oil scraper ring

Piston pins - Press fit, on diesel engine retaining rings in 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 on the connecting rod

Piston diameter	3S-FE Engines	4AF/FE engines
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	3S-FE Engines
Piston clearances	0.06-0.08 mm	0.045 0.065 mm
Piston ring gaps:
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
Ring clearances by height 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:

Piston ring gaps:

• 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

Ring clearances by height 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 across the height of all rings — 0.2 mm

Play of the piston pin in the connecting rod hole - 0.007-0.015 mm

Maximum clearance of piston pins - 0.05 m/l

Crankshaft

Number of main bearings - 5

Longitudinal fixation - Thrust half rings at the middle bearing

Main/connecting rod bearing design - Thin-walled bearing shells, copper-lead alloy with zinc plating

Crankshaft axial clearance - 0.02-0.22 mm (16-valve engines), 0.04-0.24 mm (diesel engines)

— wear limit 0.30 mm

Radial clearance of main bearings:

• nominal clearance, engine 4A-F/FE — 0.015-0.033 mm
• nominal clearance, 3S-FE engine, bearing No.3 — 0.028-0.047 mm
• nominal clearance, 3S-FE engine, except bearing No.3 — 0.018-0.037 mm
• nominal clearance, diesel engine - 0.034-0.065 mm
• maximum play (16-valve 0.10 mm (engine 4A-F/FE), 0.08mm motors) (3S-FE engine)
• maximum clearance, diesel engine - 0.10 mm

Radial clearance of connecting rod bearings:

• nominal clearance - engine 4A-F/FE - 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 - 4A-F/FE engine - 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

Connecting rod bearing journal diameter:

• 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 thrust spacer washers - 16-valve engines - 2.440-2.490 mm
• diesel engine - 2.433-2.480 mm
• Oversize - 0.125mm - 16-valve engines - 2.503-2.553mm
• 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 clearance of connecting rods:

• nominal clearance - engine 4A-F/FE - 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 crank twist - 0.05 mm (16-valve engines), 0.15 mm (diesel engine)

Bearing clearances see chapter "Crankshaft"