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About Robert67

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    Robert Vaughn Macon GA
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    1967 M20F

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  1. Thanks. For troubleshooting the PC system, thePC service manual states “If desired, an external vacuum pump may be utilized if the vacuum source is attached to the engine side of the aircraft relief valve.” I’m wondering what kind of portable vacuum pump I can attach to the system. Thanks Again. Robert
  2. Thanks for all the help. Where can you purchase a portable electric vacuum pump that pulls 10 inches? I want to run the PC system while bypassing the aircrafts vacuum pump. Thanks Robert
  3. Great article. Can anyone tell me what kind of vacuum pump to use to test the system when the aircraft is on jacks. Thanks
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