The Toyota 1G-E is a 2.0 L (1,988 cc, 121.3 cu·in) straight-six, four-stroke cycle natural aspirated gasoline engine from the Toyota G-family. The engine was manufactured by Toyota Motor Corporation from 1984 to 1991.
The Toyota 1G-E engine features a cast-iron cylinder block, aluminum cylinder head with single belt-driven overhead camshafts (SOHC) and two valves per cylinder (12 in total). The 1G-E is equipped with an electronic fuel injection system. Cylinder bore and piston stroke are 75.0 mm (2.95 in) and 75.0 mm (2.95 in), respectively. Compression ratio rating is 9.2:1.
This engine produced 105.0 PS (77 KW; 103.5 HP) at 5,200 rpm of maximum horsepower and 160 Nm (16.32 kg·m; 118.08 ft·lb) at 4,000 rpm of peak torque.
The breakdown of the engine code is as follows:
- 1 – 1 generation engine
- G – Engine family
- E – Multi-Point Fuel Injection
General information
Engine Specifications | |
Engine code | 1G-E |
Layout | Four stroke, Inline-6 (Straight-6) |
Fuel type | Gasoline |
Production | 1984-1991 |
Displacement | 2.0 L, 1,988 cm3 (121.3 cu in) |
Fuel system | Multi-point fuel injection system |
Power adder | None |
Max. horsepower | 105.0 PS (77 KW; 103.5 HP) at 5,200 rpm |
Max. torque | 160 Nm (16.32 kg·m; 118.08 ft·lb) at 4,000 rpm |
Firing order | 1-5-3-6-2-4 |
Dimensions (L x H x W): | – |
Weight | 180 kg (397 lbs) |
Cylinder block
The Toyota 1G-E engine has a cast-iron cylinder block, bore is 75.0 mm (2.95 in) and the piston stroke is 75.0 mm (2.95 in). Compression ratio rating is 9.2:1. The cylinder block, a monoblock specially cast structure, employs the seven bearing support system. The crankshaft has seven journals. The pistons are aluminum casting. Each piston is fitted with two compression rings and a single oil ring.
Cylinder block | ||
Cylinder block alloy | Cast-iron | |
Compression ratio: | 9.2:1 | |
Cylinder bore: | 75.0 mm (2.95 in) | |
Piston stroke: | 75.0 mm (2.95 in) | |
Number of piston rings (compression / oil): | 2 / 1 | |
Number of main bearings: | 7 | |
Cylinder inner diameter (standard): | 75.000-75.030 mm (2.9528-2.9539 in) | |
Piston skirt diameter (standard): | 74.955-74.985 mm (2.9510-2.9520 in) | |
Piston pin outer diameter: | – | |
Piston ring side clearance: | Top | 0.040-0.080 mm (0.0016-0.0031 in) |
Second | 0.030-0.070 mm (0.0012-0.0028 in) | |
Piston ring end gap: | Top |
NPR: 0.150-0.390 mm (0.0059-0.0153 in) Riken: 0.150-0.440 mm (0.0059-0.0173 in) |
Second |
NPR: 0.150-0.390 mm (0.0059-0.0153 in) Riken: 0.100-0.390 mm (0.0039-0.0153 in) |
|
Oil |
NPR: 0.200-0.590 mm (0.0079-0.0232 in) Riken: 0.300-0.990 mm (0.0118-0.0390 in) |
|
Crankshaft main journal diameter: | 54.985-55.000 mm (2.1647-2.1653 in) | |
Crankpin diameter: | 41.985-42.000 mm (1.6529-1.6535 in) |
Main bearing cap bolts torque specs:
- 60 Nm; 6.1 kg·m; 44.3 ft·lb
Connecting rods cap bolts torque specs:
- 50 Nm 5.1 kg·m; 36.9 ft·lb
Cylinder head
The cylinder head is made of a light, strong aluminum alloy with good cooling efficiency. The 1G-E engine has double camshafts (SOHC) and two valves per cylinder (12 valves in total).
Cylinder head alloy: | Aluminum | |
Valve Arrangement: | SOHC, belt drive | |
Valves: | 12 (2 valves per cylinder) | |
Intake duration: | – | |
Exhaust duration: | – | |
Valve head diameter: | INTAKE | – |
EXHAUST | – | |
Valve length: | INTAKE | 93.100-93.700 mm (3.6653-3.689 in) |
EXHAUST | 93.000-93.600 mm (3.6614-3.685 in) | |
Valve stem diameter: | INTAKE | 5.970-5.985 mm (0.235-0.2356 in) |
EXHAUST | 5.965-5.980 mm (0.2348-0.2354 in) | |
Valve spring free length: |
Inner 35.50 mm (1.3976 in) Outer 38.00 mm (1.4960 in) |
Cylinder head torque specs:
- 60-70 Nm (6.1-7.1 kgf·m; 44.3-51.7 ft·lb)
Maintenance data
Compression pressure | |
Standard | 13.0 kg/cm2 / 300 rpm |
Minimun | 10.0 kg/cm2 / 300 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 | SG or better |
Engine oil capacity (Refill capacity) | 3.9 liters (4.12 US.qts, 3.43 Imp. qts)/td> |
Oil change interval, km (miles) | 10,000 (6,000) |
Ignition system | |
Spark plug | DENSO W20EXR-U, NGK BPR6EY |
Spark plug gap | 0.7-0.8 mm (0.027-0.031 in) |
Spark plug torque | 18 N·m (1.8 kg·m, 13.3 ft·lb) |
Vehicle applications
Model | Years Produced |
Toyota Cressida (X70) | 1984-1988 |
Toyota Crown (S130) | 1987-1991 |
Toyota Mark II Van (X70) | 1984-1991 |
We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.
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