Manifold Pressure Equalization Tube

Discussion in 'Volkswagen' started by N804RV, Jul 10, 2019.

Help Support HomeBuiltAirplanes Forum by donating:

  1. Aug 12, 2019 #21

    103

    103

    103

    Well-Known Member

    Joined:
    May 3, 2015
    Messages:
    125
    Likes Received:
    67
    Location:
    Wauwatosa WI
    I have pulled my engine to work on the rear seal area it appears to be leaking through the dowel pins.

    In the process I got a image of my crossover tube. I have never run without it. The Engine is smooth. I am now planning a hot oil box around my Y-tube. I noticed a fuel atomization issue when the OAT is below 38f and the throttle is below 1,000 rpm.

    The warmed intake should resolve this and help in all seasons.

    Cross over tube.jpg Y tube oil box planning.jpg Revflow on Y tube.jpg Side View of Revflow on Y tube.jpg


    Dan can you show me a close up of your dip stick mod? Mine is hard to get to in the bowl.
     
  2. Aug 18, 2019 #22

    Pops

    Pops

    Pops

    Well-Known Member

    Joined:
    Jan 1, 2013
    Messages:
    7,136
    Likes Received:
    6,024
    Location:
    USA.
    This is the best picture I have. Need to do this when the case is apart. At the lower rear of the case corner I drilled a 1/4" hole into the oil sump. Made a 1/8" 4130 plate and drilled two mounting holes for a AN3 bolt and high-temp locking nuts on the inside. Make sure you have room for the nut at the inside corner before drilling.
    2 -- 3/16" dia holes at the end of the plate with a 1/4" hole in center of the 3/16" holes. Weld a 3/8 x 4130 tube about 1/2" long over the 1/4" hole in the plate and weld a cap over the end. Drill into the side of the 1/2" long tube for the 3/8" dia upright tube for the dipstick. Cut the length so the end of the dipstick bottoms in the 1/2" dia tube with the end cap. Mark dipstick for the Qts. Plug off front dipstick tube.


    Hope you can under stand, I don't have a good picture. Chrome dipstick below and to the inside of the intake tube. Can also see the small spring with a hook that I use to keep the dipstick down and snug.

    dipstick so it stays down tight. DSCF0015.JPG
     
    dmar836 and fly2kads like this.

Share This Page

arrow_white