What is the spec of the 21R engine?
The Toyota 21R engine is a member of Toyota's R-series of engines, which are known for their reliability and durability. This engine was widely used in various Toyota models during the late 1970s and early 1980s. Below, we’ll dive into the key specifications and features of the 21R engine, providing a comprehensive overview for car enthusiasts and mechanics alike.
Key Specifications of the 21R Engine
The Toyota 21R engine is a naturally aspirated inline-4 engine. It was designed to deliver a balance of performance and efficiency, making it a popular choice for Toyota vehicles of its era. Here are the main specifications:
- Engine Type: Inline-4, naturally aspirated
- Displacement: 2.0 liters (1,994 cc)
- Bore x Stroke: 86.0 mm x 86.0 mm
- Compression Ratio: 8.5:1
- Fuel System: Carbureted
- Valvetrain: SOHC (Single Overhead Camshaft), 8 valves
- Maximum Power Output: Approximately 97 horsepower (72 kW) at 5,200 rpm
- Maximum Torque: Approximately 118 lb-ft (160 Nm) at 3,600 rpm
- Cooling System: Water-cooled
The 21R engine was designed with simplicity and ease of maintenance in mind, which contributed to its reputation for reliability. Its carbureted fuel system and SOHC design made it relatively straightforward to service compared to more modern engines.
Applications of the 21R Engine
The 21R engine was used in several Toyota models, primarily in the late 1970s and early 1980s. Some of the vehicles that featured this engine include:
- Toyota Corona
- Toyota Celica
- Toyota Hilux (in certain markets)
These vehicles benefited from the 21R engine's balance of power and efficiency, making them suitable for both urban and highway driving.
Why the 21R Engine Stands Out
The Toyota 21R engine is remembered for its durability and ease of maintenance. Here are some reasons why it remains a favorite among classic car enthusiasts:
- Reliability: The 21R engine is known for its long lifespan and ability to withstand high mileage with proper maintenance.
- Ease of Maintenance: Its simple design makes it accessible for DIY mechanics and professionals alike.
- Parts Availability: Despite its age, parts for the 21R engine are still relatively easy to find, thanks to Toyota's widespread distribution network.
For those restoring classic Toyota vehicles or looking for a dependable engine for a project car, the 21R engine remains a solid choice.
Conclusion
The Toyota 21R engine is a testament to Toyota's engineering excellence during the late 20th century. Its combination of reliability, simplicity, and performance made it a popular choice in its time, and it continues to be appreciated by classic car enthusiasts today. Whether you're restoring a vintage Toyota or simply curious about automotive history, the 21R engine is a fascinating piece of engineering worth exploring.
Frequently Asked Questions
Which Toyota engine is the strongest?
1LR-GUE: Toyota's most powerful production engine
For this very special project, Toyota developed an all-new engine from scratch. Co-developed with Yamaha, the motor, codenamed 1LR-GUE, was the carmaker's first and so far only production V10.
What year did Toyota fix the DPF problem?
2018
An initial fix for the problem was implemented by Toyota between 2016 and 2018, which introduced retrofitting a so-called manual burn button to affected vehicles. This button – along with a software update – allowed owners to force the vehicle into a regeneration process and could clear a blockage in the DPF.
What is the most reliable Toyota engine of all time?
Without a doubt, the most reliable engine ever produced by Toyota has to be the 3B Diesel. These aren't powerhouse speed demons. However, the 3B (and other B Series engines built by Toyota and its subsidiaries) pushed out significant torque ratings at low RPMs.
What is the most reliable engine Toyota ever made?
1. 22R/22RE Engine: The Indestructible Legend. The Toyota 22R/22RE engine is widely considered one of the most durable engines ever made. Found in vehicles like the Toyota Hilux and 4Runner this 2.4-liter four-cylinder engine has been praised for its simplicity ease of maintenance and unbelievable toughness.
Which engine is better Ford or Toyota?
EcoBoost Technology: Ford's EcoBoost engines combine turbocharging and direct injection to deliver exceptional power and fuel efficiency. This technology outperforms Toyota's conventional engines by providing more horsepower and better fuel economy across a range of models, from the F-150 to the Mustang.
Is the Toyota 2.5 engine a good engine?
The 2.5L in most new Toyota is the Dynamic Force engine. It's been used since 2017 and from what I've seen and heard, it's extremely reliable as long as you keep up with the maintenance and oil changes.
How long do Toyota 2.5 engines last?
These engines are great as long as you change the oil every 5k miles. If you follow the 10k oil change schedule, you might end up with burning oil around 100k miles, which could lead to engine problems before 200k miles. If you're just leasing, 10k is fine, but for long-term ownership, I wouldn't risk it.
Who builds Toyota diesel engines?
Toyota Industries
Toyota Industries manufactures engines for Toyota vehicles sold all around the world. We develop and manufacture clean diesel engines that strike a balance between power performance and environmental performance, and turbochargers that play a significant role in the enhancement of engine performance.
Is the Toyota 2.8 diesel engine problem?
There are quite a few reports of problems with the dpf clogging on the latest 2.8-litre diesel, but a Toyota spokesman told us there is currently no service campaign or recall related to the Diesel Particulate Filter (DPF) on any of the three vehicles you reference.
What was the spec of the Chevy 262 engine?
262. The 1975–1976 262 was a 262.5 cu in (4.3 L; 4,301 cc) 90° pushrod V8 with an iron block and heads. Bore and stroke were 3.671 in × 3.1 in (93.2 mm × 78.7 mm). Power output for 1975 was 110 hp (82 kW) at 3600 rpm and 195 lb⋅ft (264 N⋅m) at 2000 rpm.
