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Technical Flathead oil pan mystery

Discussion in 'Traditional Hot Rods' started by metaldave, May 16, 2016.

  1. metaldave
    Joined: Aug 27, 2011
    Posts: 81

    metaldave
    Member
    from michigan

    Dear experts, I have an oil pan for a late flathead. It has a plate welded to the bottom of the sump in the rear. There are 3 studs sticking out of this plate. This pan also has a windage tray. What is the plate and studs for? Thanks in advance Dave Miller
     
  2. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,583

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    I had a '49/'50 Merc flathead and bellhousing and there was a plate that bolted to the studs on the pan and to the forward face of the bellhousing......a brace of sorts.

    Ray
     
  3. alchemy
    Joined: Sep 27, 2002
    Posts: 15,789

    alchemy
    ALLIANCE MEMBER

    Does it have a big cleanout hole in the bottom? If so, I think it's a truck pan.
     
  4. V8 Bob
    Joined: Feb 6, 2007
    Posts: 2,651

    V8 Bob
    ALLIANCE MEMBER

    Your pan came on '49-'50, and a few carry-over '51 Mercurys. The studs bolt to a bracket that is riveted to the starter plate used with the 3" stamped steel 1/2 bell. Ford evidently felt additional support was needed for the Merc and the '48-'52 cast iron truck 3" 1/2 bell, as the truck pan bolts directly through their starter plate to the bell.
    Open the link below and you'll see how these parts relate.
    http://www.flatheadv8.org/bellhousing.pdf
     
    Last edited: May 17, 2016

  5. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,682

    Bruce Lancaster
    Member Emeritus

    And Merc is I think only one with windage tray. Look for an oil pump pickup that has the missing piece of tray welded to it...when all is put together, that hole in tray is filled in by the piece on the pickup.
     
  6. metaldave
    Joined: Aug 27, 2011
    Posts: 81

    metaldave
    Member
    from michigan

    Do I have to use that oil pickup with the windage tray? Are they available? I havent seen them in any catalogs I have Dave
     
  7. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,583

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    No......... as stated above, most Ford/Merc flatheads did not have a windage tray. Having a gap in yours has no real consequence.

    Ray
     

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