Toyota 3MZ-FE 3.3L Engine Specs, Problems & Reliability
Toyota 3MZ-FE 3.3L Engine
Here in this post, I have gathered information about the Toyota 3MZ-FE 3.3L Engine from its official website, including its specifications, Problems, and Reliability.
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This article, which has been updated, has all the information you require about the Toyota 3MZ-FE 3.3L Engine.
Since 2004, Toyota Motor Corporation has been producing the 3MZ-FE, a 3.3-litre (3,310 cc, 201.99 cu. in.) V6 four-stroke cycle water-cooled naturally aspirated internal combustion gasoline engine.
It was an alternative to Toyota’s discontinued 3.0L 1MZ with VVT-i and had a 3.3-litre V6 gasoline engine. Each engine shares the same basic layout and construction details as the other.
The 3.3-litre displacement and 10.8-to-1 compression ratio of the 3MZ are its defining characteristics.
The engine was available in a wide range of Toyota vehicles, including the Highlander (including the hybrid version), Camry, Solara, RX 330/400h, and ES 330.
The aluminium cylinder block of the Toyota 3.3L V6 engine features a 60-degree cylinder bank angle, just like the 1MZ.
The cylinder liners are cast iron and are press-fitted. The pistons in the 3MZ-FE were made of aluminium alloy and had a resin coating on the skirts to reduce friction.
The crankshaft was made of forged steel and featured four main journals.
The engine’s bore was enlarged to allow for the same 83.0 mm stroke, resulting in a 3.3-litre displacement.
Engine Specifications | |
| Engine code | 3MZ-FE |
| Layout | Four-stroke, V6 |
| Fuel type | Gasoline (petrol) |
| Production | – |
| Displacement | 3.3 L, 3,310 cm3 (201.99 cu in) |
| Fuel system | Sequential multi-point fuel injection (MPFI) |
| Power adder | None |
| Power output | From 210 PS (155 kW; 208 HP) at 5,600 rpm to 234 PS (172 kW; 231 HP) at 5,600 rpm |
| Torque output | From 288 Nm (29.4 kg·m; 212.5 ft·lb) at 4,400 rpm to 328 Nm (33.5 kg·m; 242.0 ft·lb) at 3,600 rpm |
| Firing order | 1-2-3-4-5-6 |
| Dimensions (L x W x H): | – |
| Weight | – |
Cylinder head | |
| Blockhead alloy | Aluminium |
| Valve Arrangement: | DOHC, chain drive |
| Cylinder head height: | – |
| Valves: | 24 (4 valves per cylinder) |
| Intake valve timing (Intake valve timing control-OFF): | – |
| Exhaust valve timing: | – |
| Valve head diameter: | 34.0 mm (1.33 in) |
| 27.3 mm (1.07 in) | |
| Valve length: | 94.95-95.45 mm (3.7382-3.7579 in) |
| 94.90-95.40 mm (3.7362-3.7559 in) | |
| Valve stem diameter: | 5.470-5.485 mm (0.2154-0.2159 in) |
| 5.465-5.480 mm (0.2152-0.2157 in) | |
| Valve spring free length: | 45.50 mm (1.7913 in) |
| 45.50 mm (1.7913 in) | |
| Camshaft lobe height: | 42.980-43.232 mm (1.6921-1.7020 in) |
| 42.960-43.110 mm (1.6874-1.6972 in.) | |
| Camshaft journal diameter: | 26.965 mm (1.0616 in) |
Cylinder block | |
| Cylinder block alloy | Aluminium |
| Compression ratio: | 10.8:1 |
| Cylinder bore: | 92.0 mm (3.62 in) |
| Piston stroke: | 83.0 mm (3.27 in) |
| Number of piston rings (compression / oil): | 2 / 1 |
| Number of main bearings: | 4 |
| Cylinder inner diameter (standard): | 92.000-92.132 mm (3.6220-3.6272 in) |
| Piston skirt diameter (standard): | 91.983-91.967 mm (3.6202-3.6207 in) |
| Piston compression height: | – |
| Piston pin outer diameter: | 21.997-22.006 mm (0.8660-0.8664 in) |
| Piston ring side clearance: | 0.030-0.080 mm (0.0012-0.0031 in) |
| 0.020-0.060 mm (0.0008-0.0024 in) | |
| 0.030-0.110 mm (0.0012-0.0043 in) | |
| Piston ring end gap: | 0.30-0.95 mm (0.0118-0.0374 in.) |
| 0.500-1.050 mm (0.0197-0.0413 in) | |
| 0.150-1.000 mm (0.0059-0.0394 in) | |
| Crankshaft main journal diameter: | 61.000 mm (2.4016 in) |
| Crankpin diameter: | 52.992-53.000 mm (2.0863-2.0866 in) |
Valve clearance (Cold) | |
| Intake valve | 0.15-0.25 mm (0.006-0.010 in) |
| Exhaust valve | 0.25-0.35 mm (0.010-0.014 in) |
Compression pressure | |
| Standard | 12.5 kg/m2 (178 psi) / 300 rpm |
| Minimun | 10.0 kg/m2 (142 psi) / 300 rpm |
| Compression differential limit between cylinders | 1.0 kg/m2 (15 psi) / 300 rpm |
Oil system | |
| Oil consumption, L/1000 km (qt. per mile) | up to 0.5 (1 qt. per 1200 miles) |
| Recommended engine oil | 5W-30 |
| Oil type API | SL “Energy−Conserving” |
| Engine oil capacity (Refill capacity) | With filter change 4.7 liters (5.0 US qts, 4.1 Imp, qts) Without filter change 4.5 liters (4.8 US qts, 4.0 Imp. qts) |
| Oil change interval, km (miles) | 8,000 (5,000) |
| Oil Pressure | Idle speed: More than 29 kPa 3,000 rpm: More than 294-539 kPa |
Ignition system | |
| Spark plug | Denso: SK20R11, NGK: IFR6A11 |
| Spark plug gap | 1.0-1.1 mm (0.039-0.043 in) |
| Spark plug tightening torque | 25 Nm (2.5 kg⋅m, 18 ft⋅lb) |
Toyota 3MZ-FE 3.3L Engine Problems & Reliability
The engine is well past its prime and shows significant signs of wear in virtually all examples. In a standard 3MZ-FE engine, oil consumption rises with mileage, and the production of new models has ceased.
A blown cylinder block cannot be repaired and must be replaced entirely, but locating a reliable used 3MZ motor is difficult.
If the timing belt of a 3MZ engine fails, the engine’s valves will bend, resulting in costly damage to the engine’s pistons and cylinder heads.
The carbon deposits inside the intake ports and the sludge that forms on the interior walls of the engine make it nervous about overheating.
The actuator valve of a VVT-i is prone to failure. Rough engine operation and jerky acceleration are symptoms of VVT-i system problems.
However, there are bright spots as well. The 1MZ-FE engine’s frequent knock sensor failures were eliminated thanks to the installation of new sensors.
When properly cared for, the engine may easily last over 300,000 kilometres (almost 200,000 miles), which is quite respectable.
Toyota 3MZ-FE 3.3L Engine Review
A 3.3L V6 engine known as the Toyota 3MZ-FE was manufactured between 2004 and 2010. Numerous Toyota and Lexus automobiles, such as the Camry, Avalon, Sienna, Highlander, ES330, and RX330, were equipped with it. For a full review, please check this YouTube video Here.
Toyota 3MZ-FE 3.3L Engine FAQ
Is the Toyota 3.3 L V6 a good engine?
When compared to other Toyota engines, it’s not the most reliable option. The Toyota 3.3 V6 is not perfect, but it is more dependable than the typical engine.
There aren’t a lot of widespread issues or design defects that affect the engine’s performance.
What is the difference between 2GR and 3MZ?
Timing belts are used in the 3MZ engine, while timing chains are used in the 2GR engine.
They prefer the timing belt to the timing chain since the latter wears out noisily and cannot be simply replaced when it fails.
What size motor is a 3.3 L?
The 3.3 L engine is the first of its kind and has a bore and stroke of 93 mm (3.66 in) and 81 mm (3.19 in), respectively, for a total displacement of 3,301 cc.
Which cars use 2MZ engine?
The Toyota Camry and other vehicles sold exclusively in Japan employ a 2.5-litre version of Toyota’s 1MZ engine called the 2MZ-FE, the second generation of which was introduced in 2014.
