The 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 code | 2T-G, 2t-GR |
| Layout | Four stroke, Inline-4 (Straight-4) |
| Fuel type | Gasoline |
| Production | 1970-1975 |
| Displacement | 1.6 L, 1,588 cm3 (96.9 cu in) |
| Fuel system | Carburetor |
| Power adder | None |
| 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 order | 1-3-4-2 |
| 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 alloy | Cast 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: | 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 | 0.250-0.530 mm (0.0098-0.0209 in) |
| Second | 0.180-0.460 mm (0.0071-0.0181 in) | |
| Oil | 0.150-0.440 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 alloy | Aluminum | |
| 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: | INTAKE | 8.460-8.475 mm (0.3331-0.3337 in) |
| EXHAUST | 8.455-8.470 mm (0.3329-0.3335 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) / 350 rpm |
| Minimun | 9.0 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 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: BPR6EA, BPR6EY DENSO: W20EXR-U |
| Spark plug gap | 0.8 mm (0.0315 in) |
| Spark plug tightening torque | 18 Nm (1.8 kg⋅m, 13 ft⋅lb) |
Vehicle applications
| Model | Years Produced |
| Toyota Celica (TA22) | – |
| Toyota Carine (TA12) | – |
| Toyota Corolla Levin (TE37) | – |
| Toyota Sprinter Trueno (TE27, TE47) | – |
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