Honda S800: A Comprehensive Guide
The Honda S800, produced from 1966 to 1970, is a tiny, high-revving roadster that cemented Honda's reputation as a serious player in the sports car market. A successor to the S600, it represented a significant evolution in performance and styling, showcasing Honda's advanced engine technology and its growing global ambition. This guide provides a detailed overview of the S800, covering its history, generations, reliability, driving experience, and buying advice for potential owners.
Introduction
The S800 arrived at a pivotal time for Honda. Having established itself as a motorcycle manufacturer, the company sought to prove its capabilities in the automobile sector. The S800, building upon the success of the S500 and S600, was a statement of intent. It was a small, sporty car that could hold its own against European rivals, boasting a sophisticated engine and nimble handling. It falls into the category of a small, open-top sports car, often referred to as a roadster or spider. It appealed to enthusiasts seeking an affordable and engaging driving experience.
Generations
While the S800 didn't undergo major generational changes during its short production run, there were notable updates and variations:
- 1966-1968 (Early Models): These are the original S800s. Key characteristics include the chain-driven rear axle and a slightly different interior trim.
- 1968-1970 (Later Models): A significant change was the adoption of a conventional solid rear axle with radius arms and a Panhard rod, improving handling and reducing noise. Subtle cosmetic differences can also be observed, such as updated badging and minor interior revisions. A coupe version was also introduced in this period, adding a fixed roof to the lineup.
Reliability & Common Issues
The S800 is known for its relatively robust engine but being a classic car it has certain maintenance requirements and potential problems.
Engine
The jewel of the S800 is its 791cc, DOHC inline-four engine. This engine is known for:
- High-Revving Nature: It loves to rev, reaching its power peak at an astonishing 8,500 rpm. Maintaining correct lubrication is crucial to avoid damage to the valvetrain and bearings.
- Carburetion: Four Keihin carburetors feed the engine, and these can be sensitive to tuning. Improperly tuned carburetors can cause poor running, difficulty starting, and fuel inefficiency. Professional carburetor servicing is often required.
- Oil Leaks: Like many classic engines, oil leaks are common, particularly from the valve cover gasket, oil pan gasket, and front and rear crankshaft seals. Regular oil level checks are essential.
- Cooling System: Overheating can be a problem if the cooling system isn't properly maintained. Radiator leaks, a faulty thermostat, or a clogged system can all lead to overheating. Using the correct coolant is important to prevent corrosion.
Drivetrain
The drivetrain presents its own set of potential issues, especially in early models:
- Chain Drive (Early Models): The chain-driven rear axle on the early models requires careful lubrication and maintenance. Neglect can lead to chain breakage and potentially serious damage. Converting to a later solid axle is a popular modification.
- Solid Axle (Later Models): While more durable than the chain drive, the solid axle can still suffer from wear in the bearings and differential. Regular lubrication and inspection are essential.
- Gearbox: The four-speed manual gearbox is generally reliable, but synchro wear can occur, particularly in second gear. A rebuild may be necessary if gear grinding becomes excessive.
Chassis & Body
- Rust: As with any classic car, rust is a major concern. Check thoroughly around the wheel arches, sills, floor pan, and areas around the lights. Repairing rust can be expensive.
- Suspension: The suspension system, while simple, requires regular maintenance. Worn bushings, shock absorbers, and ball joints can negatively impact handling.
- Brakes: The S800 uses disc brakes up front and drums in the rear. Ensure the brake system is in good working order. Replace brake lines and hoses if they show signs of age or cracking.
Electrical System
- Wiring: The electrical system can suffer from brittle wiring, corroded connections, and faulty components. Careful inspection and proper repair are crucial for reliable operation.
- Dynamo/Alternator: Early models utilized a dynamo. Over time, this can degrade. Modern conversions to an alternator are common and increase reliability.
Driving Experience
Driving an S800 is a unique experience. Its strengths and weaknesses make it a memorable car to own.
Pros
- Engaging Engine: The high-revving engine is the star of the show. It rewards enthusiastic driving and produces a distinctive and exhilarating sound.
- Nimble Handling: The S800 is lightweight and responsive, making it a joy to drive on winding roads.
- Classic Styling: The S800 is a beautiful car, with its sleek lines and classic roadster proportions.
- Rarity: The S800 is a relatively rare car, adding to its appeal.
Cons
- Limited Power: While the engine is willing, it only produces around 70 horsepower. Performance is adequate but not blistering by modern standards.
- Basic Comfort: The S800 is a small car with limited space and basic amenities. It's not the most comfortable car for long journeys.
- Maintenance: As a classic car, the S800 requires regular maintenance and attention. Parts can be difficult to find and expensive.
- Noise: The engine can be loud, especially at higher speeds.
Buying Advice
Purchasing an S800 requires careful consideration. Here's some advice for potential buyers:
What to Look For
- Rust-Free Example: Prioritize finding a car with minimal rust, as rust repair can be a significant expense.
- Complete and Original Car: A complete and original car is generally more desirable and valuable.
- Well-Maintained Engine: Check for signs of regular maintenance, such as clean oil, properly tuned carburetors, and a healthy cooling system.
- Properly Functioning Drivetrain: Ensure the gearbox shifts smoothly, the rear axle is in good condition, and the brakes are effective.
- Documentation: Look for any available documentation, such as service records, original manuals, and ownership history.
What to Avoid
- Cars with Extensive Rust: Avoid cars with significant rust, as repair costs can quickly exceed the car's value.
- Heavily Modified Cars: Unless the modifications are well-documented and professionally done, avoid heavily modified cars, as they may be unreliable or difficult to maintain.
- Cars with Major Mechanical Issues: Avoid cars with significant engine or drivetrain problems, as repairs can be costly and time-consuming.
- Cars with Missing Parts: Missing parts can be difficult and expensive to replace.
Year to Look For
The later models (1968-1970) with the solid rear axle are generally considered more desirable due to their improved handling and reliability. However, well-preserved early models can also be excellent choices.
In conclusion, the Honda S800 is a charming and engaging classic sports car that offers a unique driving experience. While it requires careful maintenance and attention, it can provide years of enjoyment for the discerning enthusiast. With thorough research and careful inspection, you can find an S800 that will bring you countless miles of motoring pleasure.
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