Vintage Automotive Compound Meter Gauge - Vacuum & Fuel Pump Pressure Tester

Automotive Compound Meter. This versatile analog gauge is a must-have for classic car enthusiasts and mechanics working on carbureted engines. It provides real-time diagnostic data for both intake vacuum and fuel pump pressure.

Key Features:

• Dual Functionality: Measures both engine vacuum and fuel pump pressure on a single, easy-to-read dial.

• Vacuum Scale: Ranges from 0 to 30 in. Hg (inches of mercury).

• Pressure Scale: Ranges from 0 to 10 psi and 0 to 0.7 m{kg/cm^2}.

• Diagnostic Color Coding: Features specific zones for quick troubleshooting:

• "NORMAL MOTOR" (Green zone).

• "LATE IGN. TIMING" (Red zone).

• "LATE VALVE TIMING OR LEAK AT INTAKE MANIFOLD" (Red zone).

• Built-in Troubleshooting Guide: The dial face includes printed text to help identify issues like weak valve springs, choked mufflers, or sticky valves based on needle movement.

• Heavy-Duty Construction: Features a chrome-plated bezel and a protective lens.