Features:
- Use this fuel pump and vacuum tester to test the pressure on mechanical and electrical fuel pumps.
- The vacuum gauge can also diagnose improper valve timing, burned or stuck valves, sticking choke, leaking manifold, improper fuel mixture, and more.
- Complete fuel pump and vacuum gauge tester
- Check carburetor settings and valve adjustments
- Adapters are suitable for most vehicles
Specifications:
- Test Fuel Pump Output Pressure: 10PSI
- Read Engine Vacuum: 28" HG
- Large Gauge Diameter: 4" (10.5cm)
- Long Vacuum Hose: 30"(77.5cm)
If the gauge doesn't read zero, please try the below steps:
- 1. Remove the rubber shock cover.
- 2. Twist and remove the clear bezel.
- 3. Adjust to zero with a calibration screw.
- 4. Showing gauge set to zero.