Carburetor Question

Discussion in '40- & 55-Series Tech' started by Pyro-boy, Jun 29, 2005.

  1. Pyro-boy

    Pyro-boy

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    Will a 1974 F carburetor work on a 1979 2F motor. I was wondering if the jetting would work? or would the 2F run lean?

    Thanks,

    Vince
     
  2. Poser

    Poser Oh...Durka Durka Durka. s-Moderator Supporting Vendor

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    Should not be a problem....been there, done that.



    Good luck!


    -Steve
     
  3. Pyro-boy

    Pyro-boy

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    Thanks Steve. I will post with results.


    Vince
     
  4. FJ40Jim

    FJ40Jim The Cruiser Whisperer SILVER Star

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    Vince,
    Sort of. The 74 carb has fuel feed and return lines, 79 engine is not eguipped w/ such. You can install the 78 fuel pump and the 74 lines to make it all fit together. Obviously the air cleaners are different. The 74 air cleaner will not clear a PS pump mounted up high. 74 carb will not have a vac advance fitting to supply ported vac to the vac advance '79 distributor. 74 carb has single wire idle solenoid, 79 vehicle is wired for 2 wire ICS.
    Yadda, yadda...

    If you're in Cuba and it's all you've got, then the 74 can be made to work, but it is sub optimal.
    :cheers:
     
  5. Pyro-boy

    Pyro-boy

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    Thanks for the input Jim. What year carburetor would you recommend? I am currently running a weber that came on the cruiser. The weber seems to be running a bit rich (cruiser came from Texas and is now in NM at about 6000') so I was hoping to get a Aisan carburetor to address this problem.


    Vince
     
  6. FJ40Jim

    FJ40Jim The Cruiser Whisperer SILVER Star

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    For your '79 truck, a 01/79-7/80 would be ideal. It will have HAC ports for reinstalling the HAC valve. The fuel cut port will be there, if you can find a fuel cut vac switch to connect it to. And the air cleaner, throttle linkage, fuel lines, etc, will all hook up as normal. All these things will help it run better (less stinky), especially at your altitude
     
  7. Pyro-boy

    Pyro-boy

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    I forgot to add that the engine is in a 1973 FJ 40. All the emisions have been removed.

    Vince
     
  8. FJ40Jim

    FJ40Jim The Cruiser Whisperer SILVER Star

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    Oh, well....
    In that case I would recommend keeping it simple. Just dress the 2F engine to look like a desmogged '73 F engine. 38/38 Aisan, stock air cleaner, early points vac advance distributor w/ pertronix dropped in.
     
  9. 72cruiser

    72cruiser

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    aight jim, another question/hijack


    i have a desmogged 84ish 2F out of an fj60 in my 72 fj40...and i live in SC, so no emissions.

    it has a holley 2brl on it now, but i would like to go back to an aisin

    what years should i try and find to send to you as a core for a rebuild?
    (if i need to PM or email this to you due to some forum rules, let me know)


    jonathan
     
  10. Nord

    Nord

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    Pyro-boy:

    Do you have a '74 Aisin to get rid of? I might want it. PM me if you're selling.

    Nord
     
  11. Pyro-boy

    Pyro-boy

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    Jim, what about a non-usa carb. Would this alow me to use a stock air cleaner and not worry about my missing emisions stuff?

    Thanks,
    Vince
     
  12. ClemsonCruiser

    ClemsonCruiser SILVER Star

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    malph, I believe the best years are (not sure of exact months) 75-76 for performance from an asian. I just had mine rebuilt by Mark's offroad, he's a great guy and he did an excellent job on the carb.

    jp
     
  13. brian

    brian SILVER Star

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    so a 75 carb can be "made" to run on a de-smogged 77 2F?
    i have a weber, that i would like to replace.
    tell me more...
     
  14. FJ40Jim

    FJ40Jim The Cruiser Whisperer SILVER Star

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    Vince,
    Yes, a non-US carb will work. The only important difference between 1973 US carb and non-US carb is a ported vacuum fitting for use w/ an earlier or later vac advance distributor. The ported vac fitting is added to every US F carb when I rebuild it, which renders that point moot.
     
  15. FJ40Jim

    FJ40Jim The Cruiser Whisperer SILVER Star

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    Basically, any year of Cruiser carb can be "made" to bolt to any Cruiser engine. It sometimes takes 2 carbs to build one bionic carb that combines, say the cable throttle of a 70-72 F carb w/ the vac secondary of a '84 FJ60

    In your case, it's pretty easy. Your '77 truck has the mechanical throttle linkage, same as any other 74-end FJ40. And dual fuel lines, sames as any 75-78 carb. So any 75-78 carb will bolt on. It's a simple matter to desmog and recalibrate for "non-US" operation during the rebuild.

    HTH :)
     
  16. FineWynsFJ40

    FineWynsFJ40 Eff-Jay-Farty

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    Pyro-Boy: If you don't want to hang on to the 74 carb, let me know, because I need to get rid of the Rochester I'm running, and (eventually) return the intake to stock. Thanks!
     
  17. greenmachine74

    greenmachine74

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    Just converted 84 2f into 74 with F. Which carb would you recomend the stock 74 or a Holley.
     
  18. CruisinMT

    CruisinMT

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    Jim I have a D-40 Aisin Carb on my 67' it seems to have a "dead" spot where it makes my engine sputter when I barely have the pedal pressed. It's only in that one spot that it makes my engine miss. Do you have any ideas about what it may be?
     
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