The Volkswagen H is a 1,584 cc, air‑cooled flat‑four petrol engine produced between 1970 and 1975. It features a pushrod — actuated valvetrain with two valves per cylinder and a Solex 30 PICT‑2 carburettor. In standard form it delivered 37 kW (50 PS) at 4,000 rpm and 108 Nm of torque at 2,400 rpm, providing dependable performance for light utility applications.
Fitted primarily to the Volkswagen Type 2 (T2) Transporter and Kombi in European and Latin American markets, the H e…
Volkswagen
The H engine predates EU emissions regulations; compliance was governed by national type approval (e.g., German KBA). No Euro standard applies.
The Volkswagen H is a 1,584 cc air‑cooled flat‑four petrol engine engineered for light commercial vehicles (1970–1975). It combines a pushrod OHV valvetrain with a Solex carburettor to deliver reliable low‑speed torque and mechanical simplicity. Designed before EU emissions frameworks, it adheres to national type‑approval standards of its production era.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,584 cc | |
Fuel type | Petrol (Leaded recommended; Unleaded requires hardened valve seats) | |
Configuration | Flat‑4, OHV, 8‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 93.0 mm × 57.8 mm | |
Power output | 37 kW (50 PS) @ 4,000 rpm | |
Torque | 108 Nm @ 2,400 rpm | |
Fuel system | Solex 30 PICT‑2 carburettor | |
Emissions standard | Pre‑Euro (national type approval only) | |
Compression ratio | 7.5:1 | |
Cooling system | Air‑cooled (fan‑driven) | |
Turbocharger | None | |
Timing system | Gear‑driven camshaft | |
Oil type | SAE 20W‑50 mineral oil (API SF/CC) | |
Dry weight | 96 kg |
The Volkswagen H was used across Volkswagen's Type 2 (T2) platform with rear‑mounted longitudinal orientation and no external licensing. This engine received platform-specific adaptations—reinforced engine mounts in the Transporter and modified cooling ducts in the Kombi—and from 1973 minor carburettor revisions, creating minor interchange limits. All adaptations are documented in OEM technical bulletins.
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The H's primary reliability risk is valve seat recession when operated on unleaded fuel without hardened seats, with elevated incidence in high‑load or hot‑climate use. Internal Volkswagen service data from 1975 noted premature valve failure in up to 35% of H engines converted to unleaded fuel without modification, while KBA field reports linked overheating to clogged cooling fins in commercial fleets. Sustained high RPM and poor airflow make regular valve and cooling maintenance critical.
Analysis derived from Volkswagen technical bulletins (1974–1975) and German KBA failure statistics (1970–1980). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The H is mechanically robust but vulnerable to valve seat wear if run on unleaded fuel without upgrades. Engines with hardened seats or proper additives can last beyond 200,000 km with regular maintenance. Cooling system integrity and oil changes are essential for longevity.
Top issues include valve seat recession on unleaded fuel, carburettor tuning drift, oil leaks from pushrod tube seals, and overheating due to compromised airflow. These are documented in Volkswagen TSB T2‑74‑05 and workshop manuals.
The H powered the Type 2 Transporter and Kombi (1.6L petrol) from 1970–1975 in European and Latin American markets. It was not used in Beetle or Type 3 platforms. No external manufacturers licensed this engine code.
Modest gains are possible via dual‑carburettor manifolds or performance camshafts, but the 7.5:1 compression and stock heads limit safe output to ~42 kW. Significant tuning requires head work and careful thermal management due to air‑cooling constraints.
Real-world consumption is ~10.8 L/100km (city) and ~8.2 L/100km (highway), or about 26 mpg UK combined. Fuel economy varies with load and carburettor condition. Ethanol blends may increase consumption and accelerate carburettor wear.
No. The H is a non‑interference engine. If the timing gears fail (rare), valves and pistons do not collide, minimizing internal damage. This design enhances safety during mechanical failure.
Volkswagen specifies SAE 20W‑50 mineral oil meeting API SF/CC. Use high‑detergent oil to manage soot and change every 5,000–7,500 km. Synthetic oils are not recommended due to potential seal incompatibility in older air‑cooled engines.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
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.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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