Mazda RX4/929 (1972-79)

COMMON FAULTS
Please Note: Common Faults in Regularly Used Vehicles vs. Low-Mileage Stored Vehicles that have been used consistently over many years, accumulating approximately 10,000–12,000 miles annually, are more prone to common faults due to regular wear and tear. These issues typically arise from the natural aging of components subjected to frequent use, such as engine parts, suspension systems, brakes, and tires. In contrast, vehicles with low mileage that have been stored or preserved are likely to experience different types of issues. These vehicles are often better maintained to ensure their longevity and may avoid some of the typical wear-and-tear problems seen in regularly driven cars. However, they can still face unique challenges such as degradation of rubber seals, corrosion from prolonged inactivity, or fuel system issues caused by old or stagnant fuel.

The Mazda 929, known for its luxury and comfort, has a few common issues reported by owners. Here are some of the most frequently encountered problems:
1. Power Window Regulators: These are known to fail prematurely, often requiring replacement.
2. Electrical Issues: Problems with dashboard lights and other electrical components can occur.
3. Starting Problems: Issues with the starter motor, alternator, or battery can lead to starting difficulties.
4. Engine Mounts: The engine mounts can wear out, leading to increased vibrations and noise.
5. Suspension Problems: Worn suspension components can cause knocking noises and affect ride quality.
Regular maintenance and addressing these issues promptly can help keep your Mazda 929 running smoothly.
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Generations/Trim Levels
The Mazda 929 had five generations during its production run from 1973 to 1997.
1. First Generation (1973-1978): Known as the LA2 series.
2. Second Generation (1978-1981): Known as the LA4 series.
3. Third Generation (1982-1987): Known as the HB series.
4. Fourth Generation (1986-1991): Known as the HC series.
5. Fifth Generation (1991-1997): Known as the HD and HE series.
Each generation brought various updates and improvements, making the 929 a notable model in Mazda’s lineup.
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Body Styles
The Mazda 929 was offered in several body styles over its production years:
1. Sedan: The most common body style, available across all generations.
2. Coupe: Offered in the earlier generations, particularly popular in the 1970s and 1980s.
3. Station Wagon: Available in some markets, providing more cargo space and versatility.
These options allowed the 929 to cater to a variety of customer needs, from sporty coupes to practical family wagons.
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Trim Levels
The Mazda RX-4, produced between 1972 and 1979, came in a few different flavors. Buckle up, my friend, because here's the rundown:

1. **Mazda RX-4 Sedan (Saloon)**: This four-door beauty was the most common variant. It had a sleek, understated design and offered practicality for families or those who appreciated a roomier ride.

2. **Mazda RX-4 Hardtop Coupé**: If you wanted a touch of sportiness, the hardtop coupé version was your ticket. With its two-door layout and more aggressive styling, it appealed to drivers who craved a bit of flair.

3. **Mazda RX-4 Estate (Wagon)**: Need to haul stuff? The estate version—also known as the wagon—had you covered. It combined the RX-4's rotary charm with extra cargo space. Perfect for adventurous souls or anyone who needed to transport surfboards, camping gear, or a giant inflatable flamingo (hey, no judgment).

Now, let's take a moment to appreciate the rotary engine that powered these beauties. The RX-4 featured a naturally aspirated 2.6-liter Wankel rotary engine. It churned out around 115 horsepower (or 113.5 bhp, if we're being precise) at 6000 rpm and 165 Nm (that's 122 lb·ft) of torque at 4000 rpm. Not too shabby, right?
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Engines
The Mazda 929 was fitted with various engines throughout its production run. Here are some of the engines used in different generations:
1. First Generation (1973-1978):
o 1.8L (1769 cc) I4, producing 83 horsepower.
o 2.0L (1970 cc) I4, producing 103 horsepower.
2. Second Generation (1978-1981):
o 2.0L (1970 cc) I4, producing 90 horsepower.
o 2.2L Diesel, producing 66 horsepower.
3. Third Generation (1982-1987):
o 2.0L I4 and 2.0L V6 engines.
4. Fourth Generation (1986-1991):
o 2.2L I4 and 3.0L V6 engines.
5. Fifth Generation (1991-1997):
o 3.0L V6 engine, producing up to 200 horsepower.
These engines provided a range of power and performance options, catering to different market needs and preferences.
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Performance
The **Mazda RX4** (1972-1979) offered the following performance specifications:

- **Engine**: 2.3L Wankel rotary engine
- **Power Output**: 128 HP / 130 PS / 95 kW @ 7000 rpm
- **Torque**: 162 Nm / 119 lb-ft / 16.5 kgm @ 4000 rpm
- **Transmission**: 4-speed manual gearbox
- **Top Speed**: Approximately **120 mph (193 km/h)**
- **Acceleration (0-60 mph)**: Around **9.7 seconds**
- **Fuel Consumption**: About **17.5 MPG (6.6 L/100 km)** combined

These specs made the RX4 a competitive option in the sports car segment, offering a good balance of performance and efficiency.
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Rivals
In 1972, the main rivals of the **Mazda RX4** included the **Toyota Celica** and the **Ford Capri**. Here are their approximate performance specifications:

### **Toyota Celica**
- **Engine**: 1.6L inline-4
- **Power Output**: 104 HP / 105 PS / 77 kW @ 6000 rpm
- **Torque**: 134 Nm / 98 lb-ft @ 3600 rpm
- **Top Speed**: Approximately **110 mph (177 km/h)**
- **Acceleration (0-60 mph)**: Around **10.5 seconds**

### **Ford Capri**
- **Engine**: 2.0L inline-4
- **Power Output**: 98 HP / 100 PS / 73 kW @ 5500 rpm
- **Torque**: 145 Nm / 107 lb-ft @ 3000 rpm
- **Top Speed**: Approximately **110 mph (177 km/h)**
- **Acceleration (0-60 mph)**: Around **11.0 seconds**

These cars were popular choices in the sports car segment, offering a mix of performance and style.
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Designer/Dimensions
The **Mazda RX4** was designed by **Mazda's in-house design team** under the leadership of **Kenichi Yamamoto** and **Masakatsu Kato**. They were instrumental in developing Mazda's rotary engine technology and incorporating it into various models, including the RX4.

Here are the dimensions of the Mazda RX4:
- **Height**: 1410 mm
- **Width**: 1660 mm
- **Length**: 4325 mm

These dimensions made the RX4 a stylish and compact grand touring car for its time.
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Spares/Specialists NI
You can find Mazda 929 spares at several places in the UK and Ireland. Here are some options:

1. **AutoPartsPro**: They offer a wide range of original Mazda 929 parts online with fast and free shipping available.
2. **EUspares**: This site provides OE original parts for the Mazda 929 with various payment and shipping options.
3. **AUTODOC**: Known for its extensive catalogue of spare parts, AUTODOC offers a variety of parts for the Mazda 929.
4. **BreakerYard**: They connect you with quality breaker yards throughout the UK and Ireland to find both new and used parts.
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Specialists NI
Where a Mazda RX-4 owner in Northern Ireland might have their beloved rotary-powered machine repaired. Fear not—I've got some options for you:

1. **Ballyrobert Mazda**: Established for over 60 years, Ballyrobert is one of Northern Ireland's leading family-owned retailers. They have dealerships in Bangor and Mallusk. If you're near Newtownabbey, you can swing by their address at 1 Mallusk Road, BT36 4XS. They offer both sales and service, so they'll take good care of your RX-4. You can find more information on their [website](https://www.ballyrobert.co.uk/).²

2. **MAZDABITS**: Located in Newtownards, MAZDABITS is a trusted car repair establishment. They specialize in providing high-quality services and expertise to Mazda owners. You'll find them at 201A Quarry Heights, BT23 7SZ. Give them a shout at 028 9181 8131 if your RX-4 needs some attention. You can learn more about them [here](https://mazdabits.com/).³

3. **Shaws Mazda**: Another option in Newtownards, Shaws Mazda offers fantastic deals and services on new and used Mazda cars. They're located at Carriageway Green Road, BT23 7PZ. You can reach them at 028 9147 2277. Whether it's routine maintenance or a more intricate repair, they've got you covered. Check out their [details](https://www.cardealerscentral.co.uk/dealer/539221/shaws-mazda) for more info.⁴

4. **Walter Young Mazda**: If you happen to be near Broughshane in Ballymena, Walter Young Mazda might be worth considering. While I don't have a phone number for them, you can find them on Raceview Rd. Give them a wave if you're passing by! Learn more about them [here](https://www.mazda.co.uk/dealer/walteryoung-mazda/).⁵

Remember, these places are like the automotive equivalent of cozy cafés—they'll serve up some TLC for your RX-4. So, whether it's a gentle tune-up or a more intricate repair, your rotary gem will be in good hands.
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Racing
1. **Street Racing Glory**:
Back in the day, the Mazda RX-3s and R100s ruled the street races. These little rotary rockets were like caffeinated squirrels—nimble, quick, and ready to dart through traffic. Their high-revving Wankel engines made them favorites among enthusiasts who craved that distinctive rotary buzz. So, while the RX-4 wasn't the star of the street racing scene, its smaller siblings certainly left tire marks on the asphalt.

2. **Endurance at the Nürburgring**:
But wait, there's more! To prove the reliability of its rotary engine to the world, Mazda took a bold step. Picture this: Germany's formidable Nürburgring circuit, a grueling 84-hour endurance event, and two Mazda 110Ss (yes, rotary-powered) lining up. One of these brave Mazdas clinched fourth place—an impressive feat for a new car with a revolutionary engine. It was like the little rotary that could, chugging along those winding German roads, defying convention and expectations.

3. **Production Car Racing**:
Now, let's talk about the RX-4 itself. With its stylish body and extra equipment, the RX-4 was larger and heavier than its RX-3 sibling. While the RX-3 was busy building a reputation in Production Car racing, the RX-4 had a different mission. It aimed for a distinct market—one that appreciated its comfort, style, and that unmistakable rotary hum. So, while it didn't dominate the racetracks, it carved its own path, leaving a trail of rotary nostalgia behind.
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Valuation
The value of a **Mazda RX4** in the UK in 2025 can vary depending on its condition, mileage, and original features. Generally, you can expect prices to range from **£5,000 to £8,000** for well-maintained examples.
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Clubs
There are Mazda owners clubs operating in Northern Ireland! One notable club is the **Mazda Car Club of Northern Ireland**, which organizes events, meets, and activities for Mazda enthusiasts. They provide a great community for owners to connect, share experiences, and enjoy their cars together.
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