The Nissan TD27T is a 2.7 L (2,663 cc, 162.5 cu·in) straight four, water-cooled turbocharged diesel engine from Nissan TD family. The engine was manufactured from 1988 to 1997.
The Nissan TD27T engine has a cast-iron cylinder block, a cast-iron cylinder head with OHV (overhead valves) design and two valves per cylinder and turbocharger. The camshaft is driven from the crankshaft by the timing gear. It has a 96.0 mm (3.78 in) cylinder bore and 92.0 mm (3.62 in) piston stroke. Compression ratio rating is 22.0:1.
The TD27T engine produced from 100 PS (74 kW; 99 HP) at 4,000 rpm to 116 PS (85 kW; 114 HP) at 4,000 rpm of maximum horsepower and from 216 N·m (22 kg·m, 159.2 ft·lb) at 2,200 rpm to 243 N·m (24.8 kg·m, 179.1 ft·lb) at 2,200 rpm of peak torque.
The breakdown of the engine code is as follows:
- TD – Engine Family
- 27 – 2.7 Liter Displacement
- T – Turbocharger
General information
| Engine Specifications | |
| Engine code | TD27T |
| Layout | Straight-4, vertical |
| Fuel type | Diesel |
| Production | 1988-1997 |
| Displacement | 2.7 L, 2,663 cc (162.5 cu in) |
| Injection pump | Mechanical fuel injection pump |
| Power adder | Turbocharger |
| Max. Horsepower |
From 100 PS (74 kW; 99 HP) at 4,000 rpm to 116 PS (85 kW; 114 HP) at 4,000 rpm |
| Torque output |
From 216 N·m (22 kg·m, 159.2 ft·lb) at 2,200 rpm to 243 N·m (24.8 kg·m, 179.1 ft·lb) at 2,200 rpm |
| Firing order | 1-3-4-2 |
| Dimensions (L x H x W): | – |
| Weight | – |
Cylinder block
The Nissan TD27T motor has a cast-iron cylinder block with the five-bearings supported system. The cylinder bore is 96.0 mm (3.78 in) and the piston stroke is 92.0 mm (3.62 in). Compression ratio rating is 22.0:1.
| Cylinder block | ||
| Cylinder block alloy | Cast iron | |
| Compression ratio: | 22.0:1 | |
| Cylinder bore: | 96.0 mm (3.78 in) | |
| Piston stroke: | 92.0 mm (3.62 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Number of main bearings: | 5 | |
| Cylinder inner diameter: | 96.000-96.010 mm (3.7795-3.7799 in) | |
| Piston skirt diameter | 95.890-95.900 mm (3.7752-3.7756 in) | |
| Piston ring side clearance: | Top | 0.010-0.050 mm (0.0004-0.002 in) |
| Second | 0.040-0.072 mm (0.0016-0.0028 in) | |
| Oil | 0.035-0.040 mm (0.0014-0.0016 in) | |
| Piston ring end gap: | Top | 0.250-0.350 mm (0.0098-0.0138 in) |
| Second | 0.500-0.750 mm (0.0197-0.0295 in) | |
| Oil | 0.250-0.550 mm (0.0098-0.0217 in) | |
| Piston pin outer diameter | 29.993-30.000 mm (1.1808-1.1811 in) | |
| Connecting rod small end diameter (standard): | 30.025-30.038 mm (1.1821-1.1826 in) | |
| Crankshaft main journal diameter: | 70.907-70.920 mm (2.7916-2.7921 in) | |
| Crankpin diameter: | 56.913-56.926 mm (2.2407-2.2412 in) | |
| Crankshaft center distance: | 46.0 mm (1.81 in) | |
Cylinder head
The engine has OHV (overhead valves) design with the swirl combustion chamber and two valves per cylinder (8 in total). The camshaft is driven from the crankshaft by a timing gear, the injection pump is also driven by a gear. Intake valves are 43.5 mm (1.71 in) in diameter, and the exhaust valves are 38.0 mm (1.49 in).
| Cylinder head | ||
| Block head alloy | Cast-iron | |
| Valve Arrangement: | OHV, gear drive | |
| Valves: | 8 (2 valves per cylinder) | |
| Valve head diameter: | INTAKE | 43.4-43.6 mm (1.7087-1.7165 in) |
| EXHAUST | 37.9-38.1 mm (1.4921-1.5000 in) | |
| Valve length: | INTAKE | 117.0 mm (4.6063 in) |
| EXHAUST | 117.0 mm (4.6063 in) | |
| Valve stem diameter: | INTAKE | 7.962-7.977 mm (0.3135-0.3141 in) |
| EXHAUST | 7.945-7.960 mm (0.3128-0.3134 in) | |
| Valve spring free length: | Red:53.80 mm (2.1181 in) | |
| Camshaft cam height: | INTAKE | 41.900 mm (1.6496 in) |
| EXHAUST | 41.900 mm (1.6496 in) | |
Maintenance data
| Valve clearance (HOT) | |
| Intake valve | 0.35 mm (0.0138 in) |
| Exhaust valve | 0.35 mm (0.0138 in) |
| Compression pressure | |
| Standard | 30.0 kg/cm2 (29.4 bar, 427 psi) / 200 rpm |
| Minimun | 25.0 kg/cm2 (24.5 bar, 356 psi) / 200 rpm |
| Compression differential limit between cylinders | 3.0 kg/cm2 (2.9 bar, 43 psi) / 200 rpm |
| Oil system | |
| Recommended engine oil | CC or CD |
| SAE Viscosity Number |
For cold and warm areas: 10W-30 For hot areas: 20W-40 and 20W-50 |
| Engine oil capacity |
With oil filter: 6.2 l Without oil filter: 5.5 l |
Vehicle applications
| Model | Years Produced |
| Nissan Homy & Caravan (E24) | 1988-1993 |
| Nissan Terrano (D21) | 1988-1995 |
| Datsun Truck (D21) | 1993-1996 |
| Nissan Mistral (R20) | 1994-1997 |
Author:
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