Manual Carburador Hitachi 2 Gargantas Exclusive ✰

This basic guide covers the adjustments and maintenance for the Hitachi 2-barrel (2-gargantas) carburetor, commonly found on Datsun, Nissan, and some Subaru engines. 🛠️ Key Components Primary Barrel: Handles idling and low speeds.

  • Manual Test: Remove the secondary diaphragm cover. Rev the engine to 3,500 RPM. You should see the secondary butterfly crack open. If not, your vacuum port is clogged or the diaphragm is torn.

Cleaning: Use aerosol carb cleaner on the air air-correction jets (the tiny brass holes on top). manual carburador hitachi 2 gargantas exclusive

| Symptom | Likely Culprit (Exclusive to Hitachi) | Solution | | :--- | :--- | :--- | | Hard start hot | Fuel percolation in the float bowl. | Install a phenolic spacer (insulator gasket) under the carb. | | Stumble on acceleration | Accelerator pump diaphragm is EPDM rubber – old fuel has destroyed it. | Rebuild with a Viton diaphragm. Also check the check ball (steel ball) in the pump passage. | | Hesitation at stop signs | Idle progression ports are clogged. | Remove the idle mixture screw, spray carb cleaner into the hole, followed by compressed air. | | Black smoke / Flooding | Needle and seat leaking OR float sunk. | The Hitachi needle has a rubber tip. Use a magnifying glass; if there is a ring indentation, replace it. | | Secondary doesn't open | Diaphragm torn. | Remove the secondary vacuum diaphragm (3 screws). Suck on the port; if air passes through, replace. | This basic guide covers the adjustments and maintenance

Lavado: Remoja las piezas metálicas en un solvente especializado, como el Carbu-Klin de ITW Polymex, para ablandar la suciedad. Manual Test: Remove the secondary diaphragm cover

Electric Choke: Ensure the blue wire to the choke heater has power only when the motor is running. When cold, the plate should snap closed upon depressing the gas pedal once . Parts & Replacement

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.