The Honda EV2 is a 1,829 cc, inline‑four petrol engine produced between 1983 and 1987. It features a single overhead camshaft (SOHC), 12‑valve valvetrain and twin-barrel carburetion. This engine was designed for smooth, torquey performance in Honda's mid-size sedans, producing 77 kW (105 PS) and 152 Nm of torque, offering relaxed cruising capability.
Fitted primarily to the third‑generation Honda Accord (CA/CG chassis) and the second‑generation Honda Prelude (BA chassis), the EV2 was engineered for refined, comfortable driving with an emphasis on low-RPM responsiveness. Emissions compliance for its production period was met through its catalytic converter and feedback carburetor system, aligning with prevailing US Federal and Japanese standards of the time.
One documented concern involves the carburetor's feedback system, where sensor or solenoid failure can lead to poor running or emissions test failure. This issue, referenced in Honda Service Bulletin 84‑008, is often attributed to the complexity of the early electronic feedback carburetor. Later EV engines saw refinements to simplify the system.
Production years 1983–1987 meet applicable US Federal and Japanese emissions standards for their production era (Honda Engineering Spec. EV-Series).
The Honda EV2 is a 1,829 cc inline‑four petrol engine engineered for mid-size sedans and coupes (1983-1987). It combines SOHC 12-valve architecture with twin-barrel carburetion to deliver smooth, torquey performance. Designed to meet 1980s-era emissions standards, it prioritizes drivability and mechanical simplicity.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,829 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 12‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 80.0 mm × 90.0 mm | |
| Power output | 77 kW (105 PS) @ 5,500 rpm | |
| Torque | 152 Nm @ 3,500 rpm | |
| Fuel system | Twin-barrel feedback carburetor (Keihin) | |
| Emissions standard | US Federal / Japanese 1980s | |
| Compression ratio | 9.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Belt-driven | |
| Oil type | API SF, SAE 10W-40 | |
| Dry weight | 125 kg |
The SOHC 12-valve design provides smooth, low-RPM torque but offers less high-RPM power than DOHC variants. Strict 80,000 km timing belt replacement is critical to prevent catastrophic engine damage, as it is an interference design. The feedback carburetor requires a functioning oxygen sensor and control solenoid for optimal operation. Using the specified 10W-40 oil ensures proper lubrication. Points ignition systems require gap adjustment every 20,000 km.
Oil Specs: Requires API SF specification oil (Honda Owner's Manual, Accord CA 1984). Viscosity grade 10W-40 is recommended for most conditions.
Emissions: Meets 1980s US Federal and Japanese standards (Honda Engineering Spec. EV-Series). No formal Euro standards existed for this engine.
Power Ratings: Measured under SAE net standards common for the era. Output is consistent across documented markets (Honda EPC Doc. H-EV2-001).
Honda Workshop Manual (Accord CA, Sections 6, 10, 11)
Honda Owner's Manual (Accord CA, 1984)
Honda Engineering Specification Documents (EV-Series)
The Honda EV2 was used across Honda's CA platform with transverse mounting. This engine received minor platform-specific adaptations, such as different carburetor tuning for the Prelude versus the Accord, ensuring broad parts interchangeability for core components. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the engine block, typically on a flat pad near the distributor (Honda Workshop Manual, Section 6). Visually, it can be identified by its cast aluminum SOHC valve cover and the prominent twin-barrel feedback carburetor on top of the intake manifold. Critical differentiation from the later A-series engines: The EV2 uses a 12-valve head and a specific feedback carburetor model. Engine mounts and ancillary brackets may vary between Accord and Prelude applications.
The EV2's primary reliability risk is feedback carburetor system failure due to age or sensor malfunction. Honda Service Bulletin 84-008 documents this as a common cause of poor running or emissions test failure. Points ignition wear is also a frequent maintenance item on early models. Adherence to carburetor system diagnostics and using clean, high-quality fuel are critical for long-term reliability.
Analysis derived from Honda technical bulletins (1983-1987) and historical service data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about HONDA EV2.
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