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T4 Oil Inlet Flange Hole- 1/16" too small?

Discussion in 'Turbo Tech Questions' started by 502efi, Mar 20, 2006.

  1. 502efi

    Joined:
    Nov 14, 2003
    T4 Oil Inlet Flange Hole- 1/16" too small?

    No thanks to Aitch Pee Performance I got 2 oil DRAIN flanges for my T-76. Rather than call there again, I ordered one on line. It's a nice billet piece but the hole drilled for the feed to the bearings is 1/16". Lord knows it will be a fine mist with no pooling to the bearings. Question is: Is 1/16" too small for a feed. The hose feed fitting (top of flange) is 4 AN. It's the hole on the bottom of the flange. Any ideas? 1/8" better? Thanks!

    P.S.- The other oil drain flange is for sale (t3/t4) (10AN return line barb too)
     
    502efi, Mar 20, 2006
    #1

  2. 502efi

    Joined:
    Nov 14, 2003
    Re: T4 Oil Inlet Flange Hole- 1/16" too small?

    This may help a little.

    flange redo.jpg #ad
     
    502efi, Mar 20, 2006
    #2

  3. turbothis

    Joined:
    Nov 12, 2004
    Re: T4 Oil Inlet Flange Hole- 1/16" too small?

    good god thats small. i run a hilborn pill holder. some where in the 55-65 range.
     
    turbothis, Mar 20, 2006
    #3

  4. Lincs 84 351

    Joined:
    Oct 28, 2005
    Re: T4 Oil Inlet Flange Hole- 1/16" too small?

    1/16 (.062") is plenty. Some guys use 1/8" copper oil pressure gauge tube. I wouldn't go over .080"
     
    Lincs 84 351, Mar 21, 2006
    #4

  5. 502efi

    Joined:
    Nov 14, 2003
    Re: T4 Oil Inlet Flange Hole- 1/16" too small?

    Wow! So leave it alone eh? I figured it would have a hard time keeping the bearings cool and lubed at 1/16".
     
    502efi, Mar 21, 2006
    #5

  6. autosay97

    Joined:
    Oct 4, 2005
    Re: T4 Oil Inlet Flange Hole- 1/16" too small?

    I used the same flange on my TO4B, I drilled it out to 1/8". Works great.
     
    autosay97, Mar 21, 2006
    #6

  7. 502efi

    Joined:
    Nov 14, 2003
    Re: T4 Oil Inlet Flange Hole- 1/16" too small?

    Thanks a million guys! :D
     
    502efi, Mar 21, 2006
    #7
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