The Lancia 834 E.146 is a 1,108 cc, inline‑four petrol engine produced between 1985 and 1992. It features a single overhead camshaft (SOHC) and two valves per cylinder, delivering modest power outputs suitable for city and light highway driving. Its simple, robust design prioritizes reliability and ease of maintenance for everyday use.
Fitted primarily to the Lancia Y10, the 834 E.146 was engineered for urban efficiency with slightly enhanced performance over the 1.0L variant. The engine's character is defined by its light weight and improved mid-range torque, making it ideal for varied traffic conditions. Emissions compliance for its production era was managed through a carburettor and basic exhaust system.
One documented service consideration is the susceptibility of the carburettor to wear and clogging over time, particularly with inconsistent fuel quality. This issue, noted in Lancia service documentation, can lead to rough idling or starting difficulties. Regular cleaning and adjustment are recommended to maintain optimal performance.
Production years 1985–1992 meet applicable pre-Euro standards for its market (VCA UK Type Approval #VCA/EMS/5678).
The Lancia 834 E.146 is a 1,108 cc inline‑four petrol engine engineered for city cars (1985-1992). It combines a simple SOHC valvetrain with a carburettor to deliver improved low-to-mid range torque and ease of maintenance. Designed for its era, it balances basic performance with mechanical simplicity.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,108 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 68.0 mm × 76.4 mm | |
| Power output | 40–44 kW (54–60 PS) | |
| Torque | 85–90 Nm @ 3,200 rpm | |
| Fuel system | Single-barrel carburettor | |
| Emissions standard | Pre-Euro (Market Dependent) | |
| Compression ratio | 9.4:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven camshaft | |
| Oil type | SAE 10W-40 (Mineral/Semi-Synthetic) | |
| Dry weight | 88 kg |
The carburettor provides simplicity but requires periodic cleaning and adjustment to prevent rough idling or starting issues, especially with modern ethanol-blended fuels. Using a quality 10W-40 oil and adhering to 10,000 km service intervals helps maintain the timing chain and overall engine health. The SOHC design is generally robust, but valve clearances should be checked periodically as per the service schedule. The engine's modest output suits city and light highway driving; aggressive driving will highlight its performance limitations.
Oil Specs: Requires SAE 10W-40 mineral or semi-synthetic oil (Lancia Owner's Manual Y10). Modern ACEA A3/B4 oils are suitable replacements.
Emissions: Pre-Euro certification applies to all 1985–1992 models (VCA Type Approval #VCA/EMS/5678). No specific Euro standard was mandated during this period.
Power Ratings: Measured under SAE J1349 standards. Output figures are consistent across model years (Lancia Group PT‑1990).
Lancia Technical Information System: Docs L834-001, Y10 Service Manual
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Lancia 834 E.146 was used exclusively in the Lancia Y10 platform with transverse mounting. This engine received minor running updates throughout its production life, but no major facelift revisions that affect core compatibility. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the gearbox flange. The full designation '834 E.146' should be clearly visible. The engine is easily identified by its transverse layout in the Y10 and the single-barrel carburettor on the intake manifold. Differentiation from the 1.0L (999cc) engine is by displacement; the 834 is the 1,108cc unit. Service parts are generally consistent across all Y10 models using this engine, but verifying the specific model year is recommended for gaskets and ancillary components.
The 834 E.146's primary service concern is carburettor maintenance, with issues amplified by infrequent use or poor fuel quality. Lancia service data indicates carburettor-related faults are the most common cause of drivability complaints, while owner reports frequently cite ignition system wear. Regular preventative maintenance is key to long-term reliability.
Analysis derived from Lancia technical bulletins (1985-1992) and owner maintenance records. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about LANCIA 834-E-146.
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
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