________________________________________________________________________________________
| Home / Car Engines / Toyota Engines / Toyota 3T |
Toyota 3T Engine Specifications
The Toyota 3T is a 1.8 liter (1,770 cc, 108.0 cubic inches)
straight-four, four-stroke carburetor gasoline engine from Toyota
T-family. The engine was produced from 1977 through 1985.
This engine used OHV (overhead valve) design with two valves per
cylinder (8 valves in total), cast-iron cylinder block and an alloy
cylinder head with hardened valve seats and a hemispherical combustion
chamber design (HEMI). The 3T engine utilizes a timing chain.
Bore and stroke are 85.0 mm (3.35 in) and 78.0 mm (3.07 in),
respectively.
The 3T engine was available in different variants:
The 3T-C with emission control system.
The 3T-U with Toyota Total Clean System (TTC-C).
The 3T-EU with EFI sysytem and Toyota Total Clean System (TTC-C).
The Toyota 3T engine output ranges from 71 PS (52 kW, 70 HP) to 106 PS
(78 kW, 105 HP) of horsepower and from 126 Nm (12.8 kgm; 93 ft-lb) to
162 Nm (16.5 kgm; 119.6 ft-lb) of torque between the California 3T-C and
JDM-spec fuel-injected 3T-EU.
Engine code identification:
3 - 3nd generation engine
T - Engine family
| GENERAL TECHNICAL DATA |
Engine model ...................... 3T
Cylinder layout ...................... Four stroke, Inline-4
(Straight-4)
Fuel type ...................... Gasoline
Year of production ...................... 1977-1985
Total displacement ...................... 1.8 L, 1,770 cm3 (108.0 cubic inches)
Fuel system ...................... Carburetor or EFI
Power adder ...................... None
Max. horsepower ...................... From 71 PS (52 kW, 70 HP) to 106
PS (78 kW, 105 HP)
Max. torque ...................... From 126 Nm (12.8 kgm; 93 ft-lb) to
162 Nm (16.5 kgm; 119.6 ft-lb)
Firing order ...................... 1-3-4-2
Dimensions (L x H x W) ...................... No data available
Weight ...................... No data available
| CYLINDER BLOCK |
The Toyota 3T motor has a cast-iron cylinder block with three main
bearings supported system. The 2T engine cylinder bore is 85.0 mm (3.35
in) and the piston stroke is 78.0 mm (3.07 in), compression ratio rating
of 9.0:1.
The pistons are each fitted with two compression rings and a single oil
ring.
Cylinder block alloy ...................... Cast iron
Compression ratio ...................... 9.0:1
Cylinder bore ...................... 85.0 mm (3.35 in)
Piston stroke ...................... 78.0 mm (3.07 in)
Number of piston rings (compression / oil) ...................... 2 / 1
Number of main bearings ...................... 3
Cylinder inner diameter (standard) ...................... 85.000-85.050
mm (3.3460-3.3480 in)
Piston skirt diameter (standard) ...................... 84.940-84.990
mm (3.3440-3.3460 in)
Piston ring side clearance ...................... Top
...................... 0.020-0.060 mm (0.0008-0.0024 in)
Second ...................... 0.015-0.055 mm (0.0006-0.0022 in)
Oil ...................... 0.015-0.060 mm (0.0006-0.0024 in)
Piston ring end gap ...................... Top ......................
0.250-0.560 mm (0.0098-0.022 in)
Second ...................... 0.200-0.510 mm (0.0079-0.0201 in)
Oil ...................... 0.300-0.780 mm (0.0118-0.0307 in)
Crankshaft main journal diameter ...................... 57.976-58.000
mm (2.2825-2.2835 in)
Crankpin diameter ...................... 47.976-48.000 mm
(1.8888-1.8898 in)
Main bearing cap bolts tightening procedure and torque specs:
60-80 Nm; 6.5-8.5 kgm; 47-61 ft-lb
After securing bearing cap bolts, make sure crankshaft turns smoothly by
hand.
Connecting rod bearing bolts
40-50 Nm; 4.0-5.0 kgm; 30-36 ft-lb
| CYLINDER HEAD |
Cylinder head alloy ...................... Aluminum
Valve Arrangement ...................... OHV
Valves ...................... 8 (2 valves per cylinder)
Valve length ...................... INTAKE ...................... 109.0
mm (4.2913 in)
EXHAUST ...................... 108.5 mm (4.2716 in)
Valve stem diameter ...................... INTAKE
...................... 7.970-7.985 mm (0.3138-0.3144 in)
EXHAUST ...................... 7.965-7.980 mm (0.3136-0.3142 in)
Valve spring free length ...................... INTAKE
...................... 42.1 mm (1.6575 in)
EXHAUST ...................... 42.1 mm (1.6575 in)
Camshaft lobe height ...................... INTAKE
...................... 38.360-38.460 mm (1.5102-1.5142 in)
EXHAUST ...................... 38.250-38.350 mm (1.5059-1.5098 in)
| MAINTENANCE DATA |
Valve clearance (Hot)
Intake valve ...................... 0.20 mm (0.008 in)
Exhaust valve ...................... 0.33 mm (0.013 in)
Valve clearance (Cold)
Intake valve ...................... 0.18 mm (0.007 in)
Exhaust valve ...................... 0.30 mm (0.012 in)
Compression pressure
Standard ...................... 11.5 kg/cm2 (163 psi) / 250 rpm
Minimun ...................... 9.0 kg/cm2 (128 psi) / 250 rpm
Oil system
Oil consumption , L/1000 km (qt. per miles) ...................... up to
0.5 (1 qt. per 1200 miles)
Recommended engine oil ...................... 10W-30
Oil type API ...................... SE
Engine oil capacity (Refill capacity) ...................... With oil
filter: 3.8 l (4.0 US qt, 3.3 Imp qt)
Without oil filter: 3.3 l (3.5 US qt, 2.9 Imp qt)
Ignition system
Spark plug ...................... NGK: BPR5EA, BPR5ES DENSO: W14EXR-U,
W16EXR-U
Spark plug gap ...................... 0.8 mm (0.0315 in) or 1.1 mm
(0.0433 in)
Spark plug tightening torque ...................... 18 Nm (1.8 kgm, 13
ft-lb)
| VEHICLE APPLICATIONS |
Model ...................... Years Produced
3T-C
Toyota Corolla (TE72L / 72R) ...................... No data available
3T-U
Toyota Corona (TT121) ...................... No data available
Toyota Mark II (TX30) ...................... No data available
Toyota Chaser (TX30) ...................... No data available
3T-EU
Toyota Corona 1800 SL (TT132) ...................... No data available
Toyota Celica Camry 1800 SX (TA57) ...................... No data available
Toyota Corona (TT142) ...................... No data available
Toyota Celica ...................... No data available
Toyota Carina 1800 ST EFI (TA62) ...................... No data available
________________________________________________________________________________________
________________________________________________________________________________________
| Engines Technical Specifications |