Toyota 2T-G

Toyota 2T-GThe Toyota 2T-G is a 1.6 liter (1,588 cc, 96.9 cu in) straight-four, four-stroke carburetor gasoline engine from Toyota T-family. The Toyota 2T-G engine was produced from 1970 through 1975.

This engine used DOHC (dual overhead camshafts) 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 2T-G engine utilizes a timing chain.

Bore and stroke are 85.0 mm (3.35 in) and 70.0 mm (2.76 in), respectively.

The 2T-G engine has a twin sidedraft 40 mm (1.6 in) Mikuni-Solex PHH carburetors and produced 115.6 PS (85 kW; 114 HP) at 6,400 rpm of horsepower and 142 Nm (14.5 kg·m; 104.8 ft·lb) at 5,200 rpm of peak torque. Compression ratio rating is 9.8:1.

The 2T-GR is like the prementioned 2T-G, but with the lower compression ratio rating of 8.8:1. That “R” stands for Regular gasoline, and that is the reason for the lower compression. This engine produced 110 PS (82 kW; 112 HP) at 6,000 rpm of horsepower and 140 Nm (14.0 kg·m; 104 ft·lb) at 4,800 rpm of peak torque.

The breakdown of the engine code is as follows:

  • 2 – 2nd generation engine
  • T – Engine family
  • G – Performance wide-angle DOHC

General information

Engine Specifications
Engine code2T-G, 2t-GR
LayoutFour stroke, Inline-4 (Straight-4)
Fuel typeGasoline
Production1970-1975
Displacement1.6 L, 1,588 cm3 (96.9 cu in)
Fuel systemCarburetor
Power adderNone
Max. horsepower 2T-G: 115.6 PS (85 kW; 114 HP) at 6,400 rpm
2T-GR: 110 PS (82 kW; 112 HP) at 6,000 rpm
Max. torque 2T-G: 142 Nm (14.5 kg·m; 104.8 ft·lb) at 5,200 rpm
2T-GR: 140 Nm (14.0 kg·m; 104 ft·lb) at 4,800 rpm
Firing order1-3-4-2
Dimensions (L x H x W):
Weight

Cylinder block

The Toyota 2T-R motor has a cast-iron cylinder block with three main bearings supported system. The 2T-R engine cylinder bore is 85.0 mm (3.35 in) and the piston stroke is 70.0 mm (2.76 in). The 2T-G has a compression ratio rating of 9.8:1, the 2T-GR has 8.8:1.

The pistons are each fitted with two compression rings and a single oil ring.

Cylinder block
Cylinder block alloyCast iron
Compression ratio: 2T-G: 9.8:1
2T-GR: 8.8:1
Cylinder bore:85.0 mm (3.35 in)
Piston stroke:70.0 mm (2.76 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:Top0.020-0.060 mm (0.0008-0.0024 in)
Second0.015-0.055 mm (0.0006-0.0022 in)
Oil0.015-0.060 mm (0.0006-0.0024 in)
Piston ring end gap:Top0.250-0.530 mm (0.0098-0.0209 in)
Second0.180-0.460 mm (0.0071-0.0181 in)
Oil0.150-0.440 mm (0.0059-0.0173 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:

  • 70-85 Nm; 7.2-8.8 kg·m; 53-631 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 kg·m; 30-36 ft·lb

Cylinder head

Cylinder head
Cylinder head alloyAluminum
Valve Arrangement:OHV
Valves:8 (2 valves per cylinder)
Valve head diameter:INTAKE 43.0 mm (1.6929 in)
From April 1973: 44.5 mm (1.752 in)
EXHAUST 37.0 mm (1.4567 in)
From April 1973: 38.5 mm (1.5157 in)
Valve length:INTAKE 106.7 mm (4.2008 in)
From April 1973: 106.2 mm (4.1811 in)
EXHAUST 105.4 mm (4.1496 in)
From April 1973: 105.1 mm (4.1378 in)
Valve stem diameter:INTAKE8.460-8.475 mm (0.3331-0.3337 in)
EXHAUST8.455-8.470 mm (0.3329-0.3335 in)

Maintenance data

Valve clearance (Hot)
Intake valve0.20 mm (0.008 in)
Exhaust valve0.33 mm (0.013 in)
Valve clearance (Cold)
Intake valve0.18 mm (0.007 in)
Exhaust valve0.30 mm (0.012 in)
Compression pressure
Standard11.5 kg/cm2 (163 psi) / 350 rpm
Minimun9.0 kg/cm2 (128 psi) / 350 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 APISE
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 plugNGK: BPR6EA, BPR6EY DENSO: W20EXR-U
Spark plug gap0.8 mm (0.0315 in)
Spark plug tightening torque18 Nm (1.8 kg⋅m, 13 ft⋅lb)

Vehicle applications

ModelYears Produced
Toyota Celica (TA22)
Toyota Carine (TA12)
Toyota Corolla Levin (TE37)
Toyota Sprinter Trueno (TE27, TE47)
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