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.
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