Long revered for its robustness, the Toyota 4Y engine is a testament to engineering longevity. This engine model has been a backbone in the South African automotive landscape, especially when it comes to light trucks and commercial vehicles. Let’s delve into the mechanics, performance, and multifaceted applications of this workhorse.
Engine Specifications
Displacement: 2.2 L (2,237 cc)
Layout: Overhead Camshaft (OHC)
Valve Configuration: Eight-Valve
Diameter x Stroke: 91 mm x 86 mm (3.58 in x 3.39 in)
| Variant | Fuel Type | Power Output | Torque |
|---|---|---|---|
| 4Y (Carbureted) | Carburetor | 70 kW (95 PS; 94 hp) | 18.6 kgm (182 Nm) |
| 4Y-E | Fuel-Injected | — | — |
| GW491Q/LJ491Q | Fuel-Injected | — | — |
| 4G22B (Chinese Make) | Fuel-Injected | — | — |
Performance Metrics
When coupled with a 1989 Daihatsu Delta pickup, the carbureted version of the 4Y engine exhibits:
- Power: 70 kW (95 PS; 94 horsepower) at 4400 rpm (SAE net)
- Torque: 18.6 kgm (182 Nm; 135 lbfft) at 3000 rpm
If you’re interested in understanding more about Toyota engines, especially their specifications and common issues, you might want to explore all you need to know about the Toyota 2JZ-GTE engine.
Toyota 4y Engine Specs and Features
| Engine Specification | Value |
|---|---|
| Engine Type | Gasoline (Petrol) |
| Engine Capacity | 2.2 liters |
| Displacement | 2,237 cc |
| Power Output | Around 63 kW |
| Horsepower | 84 hp |
| Lifespan | Approximately 320,000 km |
| Common Applications | Toyota Hilux, Toyota HiAce vans, Toyota forklifts |
| Reputation | Reliable and durable |
| Identifying Features | Metal plate with engine model code starting with “4Y” |
| Other identifying marks on components such as cylinder head or valve cover |
Toyota 4Y Engine: An Overview of Robust Versatility
Core Specifications
The Toyota 4Y engine is an engineering masterpiece, designed with an Overhead Valve (OHV) structure that features eight valves. Its power comes from a substantial 2.2-litre (2,237 cc) displacement, providing a blend of durability and performance.
Performance Metrics
When operating in its carbureted form, this engine delivers a potent 70 kW (95 PS; 94 horsepower) at 4400 rpm (SAE net). Additionally, it churns out an impressive 18.6 kgm (182 Nm; 135 lb-ft) of torque at 3000 rpm. These specifications are facilitated by its precision-crafted diameter and stroke of 91 mm x 86 mm (3.58 in x 3.39 in).
Fuel-Injected Options
Interested in a fuel-injected variant? The GW491Q/LJ491Q and 4G22B are the versions crafted in China, while the 4Y-E stands as the moniker given by its Japanese creators.
Versatility in Applications
This engine isn’t just a powerplant; it’s a multi-role performer. The 4Y engine has seen action in several vehicles, among them:
- Daihatsu Delta
- Toyota Stout (YK110)
- Daihatsu Rocky F95
- Toyota 4Runner
- Toyota Industries Forklifts
- Toyota Hilux (4th and 5th generations)
Maintenance-Friendly Design
One of the standout aspects of the 4Y engine is its ease of use. It comes with a simple, uncluttered design and few moving parts, making it incredibly easy to service and repair.
Eco-Friendly and Economical
What’s more, the 4Y engine is renowned for its fuel efficiency and low emissions, making it an eco-friendly choice in the world of engines.
Longevity and Reputation
Above all, the 4Y engine is known for its longevity and dependability, cementing its popularity across various applications and industries.
Difference between 3y and 4y engine
| Specification | 3Y Engine | 4Y Engine |
|---|---|---|
| Displacement | 2.0 L | 2.2 L |
| Power Output | 88 hp (66 kW) | 98 hp (73 kW) |
| Torque Output | 119 lb-ft (161 Nm) | 123 lb-ft (167 Nm) |
| Valvetrain | SOHC | SOHC |
| Fuel System | Carbureted | Carbureted |
Advantages and Disadvantages
Advantages:
- Durability: The Toyota 4Y engine is known for its long life span, often lasting up to around 320,000 km, with proper maintenance.
- Simplicity: The OHV design and hydraulic lifters make the engine simple to maintain and repair.
- Availability: The engine is widely available and can be easily found in salvage yards or from online suppliers.
- Low cost: Compared to newer engines, the 4Y is relatively inexpensive, making it a popular choice for those on a budget.
Disadvantages:
- Fuel economy: The carbureted version of the 4Y engine has poor fuel economy compared to newer engines.
- Complex carburettor: The carburettor on the 4Y engine is structurally complex and requires careful adjustment to function correctly.
- Unusual ignition system: The ignition system on the 4Y engine is unique and may require specialized knowledge for repair.
- Overheating issues: The head of the block is prone to overheating, which can lead to a breakdown of the gasket.
Reliability and maintenance:
The 4Y engine is generally considered reliable, but like any engine, it requires regular maintenance to ensure its longevity. Routine maintenance includes oil changes, spark plug replacement, and regular carburettor and ignition system inspections. Proper maintenance can help prevent overheating, oil consumption, and gasket failures. Additionally, replacement parts for the engine are widely available, making it relatively easy and affordable to repair.
FAQ
Is Toyota 4Y a good engine?
Yes, the Toyota 4Y engine is generally considered to be a reliable and durable engine. Its simple design and use in a variety of Toyota vehicles and industrial equipment are testaments to its longevity.
How long does a 4Y engine last?
The Toyota 4Y engine has a reputation for being a durable and long-lasting engine, with an estimated lifespan of around 320,000 km. However, the lifespan of any engine depends on factors such as maintenance, driving conditions, and usage patterns.
How do I identify my Toyota 4Y engine?
To identify a Toyota 4Y engine, you can look for a metal plate attached to the engine block. The plate will have the engine model code, which typically starts with “4Y” followed by a series of numbers and letters that denote the specific variant of the engine. Additionally, the engine may have other identifying marks or labels on components such as the cylinder head or valve cover. If you are still having trouble identifying the engine, a Toyota dealership or a qualified mechanic should be able to assist you.
What is the engine capacity for 4Y?
The engine capacity for the Toyota 4Y is 2.2 liters or 2,237 cc.
In conclusion, the Toyota 4Y engine is a reliable and durable option used in various Toyota vehicles for many years. While it does have some disadvantages, proper maintenance and care can help prolong its lifespan. If you need a looking for a Toyota 4Y engine for sale or looking to upgrade to a different engine, Engine Finder can help. We allow you to compare quotes from our network of Toyota engine importers and scrap yards in South Africa. Take action now and get the best deal on your next engine replacement.
