OUTLINE
The 1AD-FTV TOYOTA Direct injection 4 stroke common-rail Diesel engine (D-4D) is an in-line 4-cylinder, 2.0-liter, 16-valve DOHC turbocharged diesel engine with intercooler.
This engine uses a direct injection system and common-rail system to achieve higher performance, clean emissions, low noise and low vibrations.
This engine has 2 types; one type (models with DPF catalyst) uses both the Diesel Particulate Filter (DPF) catalyst and oxidation catalyst, and the other type (models without DPF catalyst) uses the oxidation catalyst only.
SPECIFICATION
| Model | w/ DPF Catalyst | w/o DPF Catalyst | ||
| No. of Cyls. and Arrangement | 4-cylinder, In-line | ← | ||
| Valve Mechanism | 16-valve DOHC, Chain and Gear Drive | ← | ||
| Combustion Chamber | Direct Injection Type | ← | ||
| Manifolds | Cross-flow | ← | ||
| Fuel System | Common-rail Type | ← | ||
| Displacement | 1998 cm3(121.9 cu. in.) |
← | ||
| Bore x Stroke | 86.0 mm x 86.0 mm (3.39 in. x 3.39 in.) | ← | ||
| Compression Ratio | 15.8 : 1 | ← | ||
| Max. Output [EEC] | 91 kW @ 3600 rpm | 93 kW @ 3600 rpm | ||
| Max. Torque [EEC] | 310 N*m @ 1600 to 2400 rpm | 310 N*m @ 1800 to 2400 rpm | ||
| Valve Timing | Intake | Open | 2° BTDC | ← |
| Closed | 31° ABDC | ← | ||
| Exhaust | Open | 51° BBDC | ← | |
| Closed | 2° ATDC | ← | ||
| Firing Order | 1 - 3 - 4 - 2 | ← | ||
| Fuel Cetane Number | 48 or higher | ← | ||
| Emission Regulation | EURO 5+ | EURO 4 | ||
| Engine Service Mass (Reference)* | 187 kg (412 lb) | 184 kg (406 lb) | ||
Tech Tips
*: Weight shows the figure with the oil and engine coolant fully filled.
MAIN FEATURES
The following performance features have been achieved for the 1AD-FTV engine through the use of the items listed below:
High performance and reliability
Low noise and vibration
Lightweight and compact design
Good serviceability
Clean emissions and fuel economy
| Item | (1) | (2) | (3) | (4) | (5) | w/ DPF Catalyst | w/o DPF Catalyst | |
|---|---|---|---|---|---|---|---|---|
| Engine Proper | A cylinder head sub-assembly and cylinder block sub-assembly made of aluminum alloy are used. | - | - | ○ | - | - | ○ | ○ |
| A piston provided with combustion chamber is used in conjunction with the use of direct injection. | ○ | - | - | - | ○ | ○ | ○ | |
| Valve Mechanism | A valve lash adjuster assembly is used. | ○ | ○ | - | ○ | - | ○ | ○ |
| A chain sub-assembly (timing chain) and a No. 1 chain tensioner assembly are used. | - | ○ | ○ | ○ | - | ○ | ○ | |
| A chain sub-assembly (timing chain) with low friction is used. | - | - | - | - | ○ | ○ | - | |
| A valve rocker arm sub-assembly is used. | ○ | - | - | - | ○ | ○ | ○ | |
| Lubrication System | An oil filter with a replaceable element is used. | - | - | - | ○ | - | ○ | ○ |
| A water-cooled type oil cooler assembly is used. | ○ | - | - | - | - | ○ | ○ | |
| A 2-chamber structure oil pan is used. | - | - | - | - | ○ | ○ | - | |
| A 2-stage hydraulic system is used. | - | - | - | - | ○ | ○ | - | |
| Cooling System | Toyota Genuine Super Long Life Coolant (SLLC) is used. | - | - | - | ○ | - | ○ | ○ |
| Intake and Exhaust System | A DC motor type diesel throttle control motor is used in the diesel throttle body. | - | - | - | - | ○ | ○ | ○ |
| A DC motor type EGR valve is used. | - | - | - | - | ○ | ○ | ○ | |
| A water-cooled type EGR cooler that has a bypass is used. | - | - | - | - | ○ | ○ | ○ | |
| A variable nozzle vane type turbocharger sub-assembly driven by an actuator is used. | ○ | - | - | - | ○ | - | ○ | |
| A variable nozzle vane type turbocharger sub-assembly driven by a DC motor is used. | ○ | - | - | - | ○ | ○ | - | |
| The exhaust manifold converter uses an oxidation catalyst and DPF catalyst. | - | - | - | - | ○ | ○ | - | |
| Fuel System | A common-rail type fuel injection system is used. | ○ | ○ | - | - | ○ | ○ | ○ |
| A piezo type injector on which a compensation value and Quick Response (QR) code are printed is used. | ○ | ○ | - | - | ○ | ○ | ○ | |
| An exhaust fuel addition injector assembly is used. | - | - | - | - | ○ | ○ | - | |
| Serpentine Belt Drive System | A serpentine belt drive system is used. | - | - | ○ | ○ | - | ○ | ○ |
| Engine Control System | A pilot injection control system is used. | ○ | ○ | - | - | ○ | ○ | ○ |
| A vacuum pump with low friction is used. | - | - | - | - | ○ | ○ | ○ | |
| An oil maintenance management system is used. | - | - | - | ○ | - | ○ | ○ | |
| A catalyst support control is used. | - | - | - | - | ○ | ○ | - | |
| A 7 V ceramic glow plug assembly and glow plug controller are used. | ○ | - | - | - | ○ | ○ | - | |
Tech Tips
○: Applicable
-: Not applicable