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Early 2 barrel big window F carburetor

Discussion in 'FJ25 Owners Group' started by FJ40Jim, Jan 7, 2011.

  1. nuclearlemon

    nuclearlemon not an addict Moderator

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    if i ever get off my butt, i'll send you one to rebuild also ;)
    ideally, i'll find two aisan plates and one glass and send two to you
     
  2. FJ40Jim

    FJ40Jim The Cruiser Whisperer SILVER Star

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    Just realized, this is the very carb that was torn down & dropped in the ToxicTank (tm) today. Pics at 11.
     
  3. FJ40Jim

    FJ40Jim The Cruiser Whisperer SILVER Star

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    A customer contacted me today, looking for a carb for a 1967. That's a transition year, with the ICS and PCV system coming online, and the upgrade to 12-port cyl head and 2-bbl manifold. So I said send me some pics of the engine bay so I can figure out what carb will work best.

    See pics below. This is weird, to me. It is the early head, but it has one of the FA truck 2bbl manifolds. It does have PCV, so it's likely a 1967 USA engine.

    I don't have another of the 1961-1969 DD40/40 2bbl carbs for the early 2bbl manifold.
    Here's a question for the hive mind: Will a 1970 2bbl carb & aircleaner work on this engine? Is the manifold the right height and the right distance from head, will the aircleaner line up with carb?

    20171118_121426.jpg 20171118_121406.jpg
     
  4. thebigredrocker

    thebigredrocker SILVER Star

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    @FJ40Jim

    I took a few measurents of my 71 40. Not very scientific:hillbilly:.
    I believe the center of the front passenger side carb mounting stud to the machined mounting surface on the block is 48 or 49mm.
    DB3D5C33-8343-424C-83E9-FC55F3738286.jpeg

    I believe the arrowed surface is the same height as the surface used to mount the air cleaner bracket.
    91619461-E303-494F-88F3-6E27C3C69387.jpeg
    I held a “relatively” flat paint stir stick on the surface.
    0E4855B7-3CC4-4E77-85CD-0F98CB1C26E6.jpeg

    Here you can see the bottom plane of paint stick is close proximity to the upper side of carb base.
    94E484E6-E4D7-492D-B13D-0DBDBC8DBA27.jpeg

    Rested measuring device on top of riser gasket for photo. Taking into account gasket thickness, I’d say machined carb mounting surface of manifold is 25mm below machined surfaces on top of head that paint sick was placed on.
    7DD5F019-1243-4ACB-B9EE-D1CA0497AB41.jpeg

    Holler if you would like any other measurements:D.
     
  5. FJ40Jim

    FJ40Jim The Cruiser Whisperer SILVER Star

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    Thanks for measuring that!

    Now we need the same measurements off the unobtainium 61-67 2bbl intake manifold:
    1. Distance from manifold/ head mounting plane to an inner carb mounting stud. (this can be obtained by measuring the manifold)
    2. vertical offset/height of carb mounting flange below the upper deck of head. (needs to be measured w/ mani on engine)

    Anybody? Bueller? Bueller??
     
  6. thebigredrocker

    thebigredrocker SILVER Star

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    I wonder if @landcrusher909 still has his manifold he could bolt up to a block. Or pehaps @owensexport could get a height measurement off his firetruck.
     
  7. SuperDuperCruizer

    SuperDuperCruizer

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  8. FJ40Jim

    FJ40Jim The Cruiser Whisperer SILVER Star

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    Here's the carb for Mcinnis' sweet 1959. What it looked like before teardown.
    DSC00061.JPG


    This carb & mani is off a 11/1965 Toyota FA truck. Date code 5 K 1 = 1965 Nov 1st, PN is 21100-60061 for FA truck. DSC00199.JPG


    Rebuild kit is a Keyster K11-029A, fits 2bbl FA truck carb, 1961-1969. This one was ordered from Sirius Carb Parts in Canada.
    [​IMG]

    The throttles were all rusted solid, so had to be removed & cleaned up. There was the usual 50 years of corrosion inside. But it all eventually came apart and was found to be salvageable.

    DSC00193.JPG

    Going back together. Note that all the carbs before ~1973 are made of dead soft lead-zinc alloy. So the mating surfaces are always warped apart between boltholes, and the holes themselves always have thread partially pulled up above the surface. To fix this (and it has to be fixed) the parts have to pressed flatt-ish, then screw holes are countersunk, and finally the surface is flat filed to get closer to perfect. It's visible on the top of this carb body, but has also been done to sight glass area and bottom surface of carb bowl.
    DSC00201.JPG

    And a completed DD40/40 2 barrel carb for Toyota FA truck. Or a resto-mod 1959 Land Cruiser.

    DSC00202.JPG
     
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  9. Spike Strip

    Spike Strip Half-wrench, will travel SILVER Star

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  10. Bear

    Bear SILVER Star

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    Jim,

    Thanks for photo-documenting this as well as the tech on warpage.
     
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