Manual Carburador Hitachi 2 Gargantas Exclusive May 2026

| Síntoma | Causa Probable en Hitachi 2 Gargantas | Solución | | :--- | :--- | :--- | | El motor se ahoga (humo negro) | Nivel de flotador muy alto o aguja de asiento defectuosa. | Ajustar flotador o cambiar aguja/asiento. | | Tirones al acelerar a fondo | Bomba de aceleración dañada o conducto tapado. | Revisar diafragma de la bomba y limpiar conducto de disparo. | | Ralentí inestable | Vacío en la base del carburador o tornillo de ralentí tapado. | Cambiar junta de base; limpiar surtidor de ralentí. | | La garganta secundaria no abre | Diafragma de vacío secundario roto o enlace mecánico atascado. | Revisar la cápsula de vacío del secundario. | | Consumo excesivo | Surtidores principales desgastados (agrandados). | Reemplazar surtidores por tamaño estándar. |

Este documento es una guía de referencia. Para reparaciones mayores que involucren la reconstrucción completa, se recomienda adquirir un kit de reconstrucción (Overhaul Kit) específico para el número de modelo de su carburador Hitachi.

Hitachi 2-barrel (2 gargantas) carburetor is a staple of classic Japanese engineering, found predominantly in Nissan and Datsun vehicles from the late 1970s through the early 1990s

. Known for its reliability when properly maintained, it is frequently used in models like the Nissan Tsuru I/II (Sentra) Pickup 720/Z24 Datsun A10/J18 Technical Specifications & Components manual carburador hitachi 2 gargantas exclusive

This progressive-style carburetor uses two "throats" or barrels to balance fuel economy with power. Primary Circuit

: Usually smaller jets (e.g., sizes 102, 105, or 107) for cruising and fuel efficiency. Secondary Circuit

: Larger jets (e.g., 130 to 145) that open during heavy acceleration for maximum power. Identification : These units often feature a glass sight window | Síntoma | Causa Probable en Hitachi 2

on the fuel bowl, allowing you to check fuel levels without disassembly. Choke System : Most "exclusive" or original units feature an automatic electric choke (thermostat) to assist with cold starts. Essential Adjustments

Before making adjustments, ensure the engine is at operating temperature. Carburetor Adjustment Basics -EricTheCarGuy

Manuals for the 2-barrel Hitachi carburetor, particularly the DCH 340 model used in Nissan and Datsun vehicles, provide specific adjustment specifications for the dry float level, vacuum break, and idle mixture, according to technical guides. These documents, often provided by Walker Products, outline essential rebuilding procedures for optimizing performance in vehicles with Z24 engines. Access the Walker Products instructions for the DCH 340, which includes detailed adjustment specifications, at Walker Products.  Carburador Hitachi Nissan Z24 | MercadoLibre Este documento es una guía de referencia

This review focuses on the manual choke version (often called "exclusive" or "base model" in some markets like Brazil and Mexico), differentiating it from the electric or water-choked variants.

To get this carburetor working exclusively for your engine, put away the scan tool. You need a flathead screwdriver, a tachometer, and patience.

Would you like the specific float height, idle speed, or mixture screw turns for a particular car model (e.g., Nissan Tsuru Datsun, Chevrolet C10 with Hitachi)?