The Fiat Regata 65 Diesel 1.7, produced between 1984 and 1989, was a mainstay of the Fiat Regata (Type 138) lineup, particularly in European markets. Positioned as the entry-level diesel variant, it offered economical transportation for families and individuals seeking a practical and reliable sedan. The Regata itself was designed as a replacement for the Fiat 131, aiming to provide a more modern and spacious vehicle while maintaining Fiat’s reputation for affordability. This specific 65 horsepower diesel model played a significant role in establishing the Regata as a popular choice in the compact sedan segment.
Technical Specifications
| Brand | Fiat |
| Model | Regata |
| Generation | Regata (138) |
| Type (Engine) | 65 Diesel 1.7 (65 Hp) |
| Start of production | 1984 |
| End of production | 1989 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6.9 l/100 km (34.1 US mpg) |
| Fuel consumption (extra urban) | 5.1 l/100 km (46.1 US mpg) |
| Fuel consumption (combined) | 6.3 l/100 km (37.3 US mpg) |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 18.9 sec |
| Acceleration 0 – 62 mph | 18.9 sec |
| Acceleration 0 – 60 mph | 18 sec |
| Maximum speed | 150 km/h (93.21 mph) |
| Weight-to-power ratio | 14.3 kg/Hp |
| Weight-to-torque ratio | 9 kg/Nm |
| Power | 65 Hp @ 4500 rpm |
| Power per litre | 38.3 Hp/l |
| Torque | 103 Nm @ 3000 rpm (75.97 lb.-ft. @ 3000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 138B6.000 |
| Engine displacement | 1697 cm3 (103.56 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Number of valves per cylinder | 2 |
| Fuel injection system | Precombustion chamber injection |
| Engine aspiration | Naturally aspirated |
| Valvetrain | SOHC |
| Engine oil capacity | 4.3 l (4.54 US qt | 3.78 UK qt) |
| Coolant capacity | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Kerb Weight | 931 kg (2052.5 lbs) |
| Trunk (boot) space | 513 l (18.12 cu. ft.) |
| Fuel tank capacity | 55 l (14.53 US gal | 12.1 UK gal) |
| Permitted trailer load (12%) | 1000 kg (2204.62 lbs) |
| Length | 4260 mm (167.72 in) |
| Width | 1650 mm (64.96 in) |
| Height | 1410 mm (55.51 in) |
| Minimum turning circle | 10.3 m (33.79 ft) |
| Drivetrain | Front wheel drive |
| Number of gears | 5 gears, manual transmission |
| Front suspension | Independent, McPherson with coil spring and anti-roll bar |
| Rear suspension | Leaf spring |
| Front brakes | Disc |
| Rear brakes | Drum |
| Steering type | Steering rack and pinion |
| Tires size | 165/65 R14 |
Powertrain & Engine Architecture
The heart of the Regata 65 Diesel was the 1.7-liter inline-four cylinder diesel engine, designated as the 138B6.000. This engine utilized a precombustion chamber injection system, a common technology for diesel engines of the era. This system involved injecting fuel into a small precombustion chamber connected to the main cylinder, where it was partially ignited before entering the main combustion chamber. This aided in cold starting and reduced engine noise. The engine featured a single overhead camshaft (SOHC) valvetrain operating two valves per cylinder. The engine produced 65 horsepower at 4500 rpm and 103 Nm (76 lb-ft) of torque at 3000 rpm. This torque delivery, while modest by modern standards, was characteristic of diesel engines and provided reasonable pulling power at lower engine speeds.
Driving Characteristics
The Regata 65 Diesel, with its 5-speed manual transmission, offered a utilitarian driving experience. Acceleration was slow, taking approximately 18.9 seconds to reach 62 mph (100 km/h). However, the engine’s torque characteristics made it reasonably comfortable for everyday driving, particularly in urban environments. Compared to the more powerful gasoline-powered Regata variants, the diesel model prioritized fuel economy over outright performance. The gear ratios were optimized for maximizing fuel efficiency and providing adequate power for cruising at highway speeds. The 65 Diesel was noticeably slower than the 1.6 liter gasoline versions, but offered significantly better fuel economy.
Equipment & Trim Levels
The Regata 65 Diesel was typically equipped with basic, functional features. Standard equipment included cloth upholstery, a simple dashboard layout, and manual windows and door locks. Air conditioning and power steering were often optional extras, depending on the market. The interior was designed with practicality in mind, offering comfortable seating for five passengers and a reasonably sized trunk with 513 liters (18.12 cubic feet) of space. Trim levels were relatively limited, with the 65 Diesel generally representing the base model. Optional extras could include upgraded audio systems and different wheel covers.
Chassis & Braking
The Regata featured an independent McPherson strut suspension at the front, providing a comfortable ride and decent handling. The rear suspension utilized a leaf spring setup, which was a cost-effective solution but offered a less refined ride compared to independent rear suspension. The braking system consisted of disc brakes at the front and drum brakes at the rear. While adequate for the vehicle’s weight and performance, the braking system was not particularly powerful. The steering was a rack and pinion system, providing reasonably precise steering feel.
Market Reception & Comparison
The Fiat Regata 65 Diesel was well-received in markets where diesel fuel was affordable and fuel economy was a primary concern. Critics praised its practicality, reliability, and low running costs. However, it was often criticized for its slow acceleration and relatively basic interior. Compared to the gasoline-powered Regata models, the diesel version offered significantly better fuel economy but lacked the same level of performance. It was a direct competitor to other European compact diesels like the Volkswagen Jetta Diesel and the Peugeot 305 Diesel, often offering a more affordable price point.
Legacy
The Fiat Regata 65 Diesel, while not a performance icon, remains a testament to Fiat’s ability to produce affordable and reliable transportation. The 138B6.000 engine proved to be a durable and long-lasting unit, and many examples are still on the road today. In the used car market, the Regata 65 Diesel is often sought after by enthusiasts looking for a classic European diesel with simple mechanics and low maintenance costs. Its enduring appeal lies in its practicality, fuel efficiency, and the nostalgic charm of a bygone era of automotive engineering. The Regata, and specifically this diesel variant, helped solidify Fiat’s position as a major player in the European compact car market.
