How to Check Your Advance and Retard Vacuum Pipe

Duration: 1:36

The vacuum advance is key to the good running of the engine. If the pipe or diaphragm are leaking, the engine will run poorly.

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2 Responses to “How to Check Your Advance and Retard Vacuum Pipe”

  1. Ian Williams
    Ian Williams

    My car was overheating. I tried this test using a vac pump. It wasn’t moving the baseplate inside the distributor when suction applied. Also I manually moved the plate across, covered the end of the tube but it didn’t stay in place, so I am suspecting the vac advance unit. .

    • Customer Service
      Customer Service

      Hi Ian, and thanks for contacting Skill Shack with Practical Classics.
      Skill Shack works in partnership with Practical Classics Magazine, which can provide in-depth answers to your question through their ‘Ask Our Experts’ pages. If you’d like to direct your query to our team of experts will be able to help.
      Kind Regards,
      The Skill Shack Team