Glued Vacuum Tubes - June 19, 2008

I continued working on the air intake pipe after joining the main pipe pieces. I went to home depot and got two small copper pipes two use for connecting the two vacuum hoses that go into the intake pipe. One pipe needs to have an outer diameter of about 8 mm, and the other must be about 14 mm to fit the vacuum hoses. One of the copper pipes I got was a 90 degree elbow to make it easier to connect one of the hoses without much modification.

  1. I cut about an inch-long piece of the 8 mm pipe to use for one of the vacuum hoses.
    Small copper vacuum pipe marked for cutting
    Small copper vacuum pipe cut
  2. I marked where to cut the hole in the intake pipe for the small vacuum pipe and cut out the hole with a dremel.
    Hole in the intake pipe for the small vacuum pipe
    Small vacuum pipe test-fitted into the hole - Outside view
    Small vacuum pipe test-fitted into the hole - Inside view
  3. In the same way, I made a hole for the larger vacuum pipe.
    Large vacuum pipe test-fitted into hole - Outside view
  4. I sanded all of the surfaces to be glued with 80-grit followed by 320-grit sandpaper and then cleaned the surfaces with Simple Green followed by acetone.
  5. Then, I applied JB Weld to the outside edge of each copper pipe and inserted each pipe into its corresponding hole.
    Glue applied to copper vacuum pipes to join them to the intake pipe
  6. I allowed 24 hours for the pipe to dry. The picture shows the final result.
    Vacuum pipes joined to the main intake pipe

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