The Toyota 1C is a 1.8 L (1,839 cc, 112.2 cu·in) four-cylinders, four-stroke cycle water-cooled naturally aspirated internal combustion diesel engine, from the Toyota C-family, manufactured by the Toyota Motor Corporation from 1981 to 1992.
The 1C diesel engine has a cast-iron cylinder block with 83.0 mm (3.27 in) cylinder bores and an 85.0 mm (3.35 in) piston stroke. Compression ratio rating is 23:1. The Toyota 1C engine has a cylinder head with a single overhead camshaft (SOHC) and 2 valves per cylinder (8 in total).
This engine was available in the following modifications:
- 1C is a longitudinally mounted engine. This engine produced 65 PS (48 kW; 64 HP) at 4,700 rpm of horsepower and 118 N·m (12 kg·m, 87 ft·lb) at 2,700 rpm of torque.
- 1C-L is a transversely mounted version of the 1C.
- 1C-TL is a turbocherged version was installed in the Toyota Camry and Vista. It produces 73 PS (54 KW; 72 HP) at 4,500 rpm of output power and 145 Nm (14.8 kg·m; 107.0 ft·lb) at 2,600 rpm of torque.
The breakdown of the engine code is as follows:
- 1 – 1-st generation engine
- C – Engine family
General information
| Engine Specifications | |
| Engine code | 1C |
| Layout | Straight-4, vertical |
| Fuel type | Diesel |
| Production | 1981-1992 |
| Displacement | 1.8 L, 1,839 cc (112.2 cu in) |
| Injection pump | Mechanical |
| Power adder | None |
| Horsepower net | 1C:: 65 PS (48 kW; 64 HP) at 4,700 rpm 1C-TL: 73 PS (54 KW; 72 HP) at 4,500 rpm |
| Torque output | 1C:: 118 N·m (12.0 kg·m, 87.0 ft·lb) at 2,700 rpm 1C-TL: 145 Nm (14.8 kg·m; 107.0 ft·lb) at 2,600 rpm |
| Firing order | 1-3-4-2 |
| Dimensions (L x H x W): | – |
| Weight | |
Cylinder block
The cylinder block is made of cast iron. The crankshaft is supported by 5 bearings. Cylinder bore and piston stroke are 83.0 mm (3.27 in) and 85.0 mm (3.35 in), respectively. Compression ratio rating is 23:1.
| Cylinder block | ||
| Cylinder block alloy | Cast-iron | |
| Compression ratio: | 23:1 | |
| Cylinder bore: | 83.0 mm (3.27 in) | |
| Piston stroke: | 85.0 mm (3.35 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Number of main bearings: | 5 | |
| Cylinder bore inner diameter: | 83.000-83.030 mm (3.2677-3.2689 in) | |
| Piston skirt diameter | 82.950-82.980 mm (3.2657-3.2669 in) | |
| Piston ring end gap: | Top | 0.270-0.540 mm (0.0106-0.0213 in) |
| Second | 0.250-0.520 mm (0.0098-0.0205 in) | |
| Oil | 0.200-0.820 mm (0.0079-0.0323 in) | |
| Piston pin outer diameter | 27.000-27.012 mm (1.063-1.0635 in)) | |
| Connecting rod small end diameter (standard): | 27.011-27.023 mm (1.0634-1.0639 in) | |
| Crankshaft main journal diameter: | 56.985-57.000 mm (2.2435-2.2441 in) | |
| Crankpin diameter: | 50.488-50.500 mm (1.9877-1.9882 in) | |
| Crankshaft center distance: | 42.5 mm (1.675 in) | |
Main bearing cap tightening procedure and torque specs:
- 103 Nm; 10.5 kg·m; 76 ft·lb
After securing bearing cap bolts, make sure crankshaft turns smoothly by hand.
Connecting rod bearing nut
- 64 Nm; 6.5 kg·m; 47 ft·lb
Crankshaft pulley bolt
- 98 Nm; 10.0 kg·m; 72 ft·lb
Drive plate (A/T) fixing bolts
- 74 Nm; 7.5 kg·m; 54 ft·lb
Flywheel (M/T) fixing bolts
- 88 Nm; 9.0 kg·m; 65 ft·lb
Cylinder head
| Cylinder head | |
| Cylinder head alloy | Cast iron |
| Valve Arrangement: | SOHC |
| Valves: | 8 (2 valves per cylinder) |
| Intake valves diameter: | – |
| Exhaust valves diameter: | – |
| Intake valves length: | 105.70 mm (4.1614 in) |
| Exhaust valves length: | 105.35 mm (4.1476 in) |
| Intake valve stem diameter: | 7.975-7.990 mm (0.314-0.3146 in) |
| Exhaust valves stem diameter: | 7.960-7.975 mm (0.3134-0.314 in) |
| Valve spring free length: | 47.5 mm (1.8701 in) |
| Camshaft journal diameter: | 27.979-27.995 mm (1.1015-1.1022 in) |
| Camshaft lobe height (intake): | 46.725-46.875 mm (1.8396-1.8455 in) |
| Camshaft lobe height (exhaust): | 47.335-47.485 mm (1.8636-1.8695 in) |
Head tightening procedure and torque specs:
- Step 1: 44 Nm; 4.5 kg·m; 33 ft·lb
- Step 2: Turn all bolts 90°
- Step 3: Turn all bolts another 90°
Maintenance data
| Valve clearance (Hot) | |
| Intake valve | 0.20-0.30 mm (0.0079-0.0118 in) |
| Exhaust valve | 0.25-0.35 mm (0.0098-0.0138 in) |
| Compression pressure | |
| Standard | 30.0 kg/m2 (2,942 kPa, 427 psi) |
| Minimun | 25.0 kg/m2 (2,452 kPa, 356 psi) |
| Compression differential limit between cylinders | 5.0 kg/m2 (490 kPa, 71 psi) |
| Oil system | |
| Recommended engine oil | 10W-30 or 5W-30 (“CC”, “CD”) |
| Engine oil capacity | Dry fill: 4.8-5.3 L (4.5-5.6 US qt, 3.8-4.7 Imp. qt) With oil filter change: 4.3-4.5 L (4.5-4.8 US qt, 3.8-4.0 Imp. qt) Without oil filter change: 3.8 L (4.0 US qt, 3.0 Imp. qt) |
| Oil pressure: | At idle: 0.3 kg/m2 (29 kPa, 4.3 psi) or more At 3,00 rpm: 2.5-6.0 kg/m2 (245-588 kPa, 36-85 psi) |
Vehicle applications
| Model | Years Produced |
| Toyota Carina (CA60/67) | 1982-1988 |
| Toyota Corolla (CE70/71/72/80/90/96/97) | 1982-1992 |
| Toyota Corona (CT140/147 ) | 1982-1987 |
| Toyota LiteAce / TownAce (CM20/25/35/CM50/CR26) | 1982-1989 |
| Toyota Sprinter (CE70/80/90/96/97) | 1982-1991 |
| 1C-TL | |
| Toyota Camry | – |
| Toyota Vista | – |
Author:
Buenas tengo adaptado el motor foto en combi vw originalmente a que coche pertenece gracias muy bueno los datos
Hi,
I would like to know the mileage of Toyota 1C engine….