Peugeot 404 Solex Pbica jet size
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Thread: Peugeot 404 Solex Pbica jet size

  1. #1
    Tadpole
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    Default Peugeot 404 Solex Pbica jet size

    Hi,

    I have a 404 from -69 with XC7 engine.

    For different reasons I changed carb, and suspect that the jets all way of, might be that the carb comes from a 304 or 204 with smaller engine.

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    So I'm looking for standard values of the jets for a Solex 32 PBICA for my 404, 1.6 XC7 engine with 73hp.


    Also, what is the difference between PBICA 32 and 34? Seems like all parts ar interchangeable?

    Thanks in advance.

  2. #2
    Fellow Frogger!
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    Default 34 or 32 Solex?

    Quote Originally Posted by BeJa View Post
    Hi,

    I have a 404 from -69 with XC7 engine.

    For different reasons I changed carb, and suspect that the jets all way of, might be that the carb comes from a 304 or 204 with smaller engine.

    So I'm looking for standard values of the jets for a Solex 32 PBICA for my 404, 1.6 XC7 engine with 73hp.


    Also, what is the difference between PBICA 32 and 34? Seems like all parts ar interchangeable?

    Thanks in advance.
    My sometimes un reliable memory tells me that the 32 mm Solex was used on the 1468cc 403 motor and the 34mm was for the 1618cc 404 engine..

    The differences between the two would be the throat size, venturi and certain jets

    Bon chance

    John
    Dano likes this.

  3. #3
    Tadpole
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    Default

    Thanks John.

    I found this picture, might help somebody in the future:
    Peugeot 404 Solex Pbica jet size-reglaje-solex-34-pbica-peugeot-404.jpg


    Seems that I have a 32 mm Solex which I need to adjust to run on my 404.
    I'll have the values above as base and go from there.

  4. #4
    Fellow Frogger!
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    Default

    On a 404 you should be running a 34PBICa

  5. #5
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    Default

    This is an XC7, which wasn't sold here, so it may have used a 32 pbic? It was detuned from the XC6. Here the 32 was used in the XC (3 bearing) and the early 5 bearing, XC5, motors. My car had a late XC5 which has a 34 pbic. I have converted to XC6 specs so it was good I could use the same carby. Most workshop manuals have an exploded diagram of the carby.

  6. #6
    Fellow Frogger!
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    Default jets ?!

    Quote Originally Posted by BeJa View Post
    Thanks John.

    I found this picture, might help somebody in the future:
    Click image for larger version. 

Name:	reglaje-solex-34-pbica-PEUGEOT-404.jpg 
Views:	48 
Size:	62.8 KB 
ID:	107629


    Seems that I have a 32 mm Solex which I need to adjust to run on my 404.
    I'll have the values above as base and go from there.
    BeJa
    Do you know what capacity your 404 engine is? Is it 1468cc or 1618cc?
    Those jet values look about right for a 1468cc motor... the 1618 cc motor had some departures like venturi and main jets.
    The 1618cc carburetor specification for a 34 PBICA shows
    choke tube 26
    mainjet 137
    air correction 170
    slow running fuel 45
    slow running air 210
    starter fuel jet110
    starter air jet6.5
    emulsion tube 28
    pump jet 50 float 5.7gr
    needle valve 170

    I hope this helps for comparison purposes
    (Also note from Scientific Publications manual that the 32 PBCA was used prior to 1965)
    John

  7. #7
    Fellow Frogger!
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    Default 32 pbca jets

    Just found jets specification for a 32 PBCA ...as used on XC/73hp
    choke tube 25
    main jet 130
    air correction 170
    slow running fuel 50
    slow running air 220
    starter fuel jet110
    starter air jet6.5
    emulsion tube 19
    pump jet 50
    float 5.7gr
    needle valve 170

    John

  8. #8
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    Default

    The XC7 engines were very torquey, possibly due to the smaller 25 mm choke tube.

  9. #9
    Tadpole
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    Default

    Thanks for the info John.

    I assumed my XC7 engine came with 34 PBICA (but not sure). The car is a 1969, 5 bearing engine and 1618cc.
    gfg
    One way would be to change to a "standard" 34 PBICA, but I don't have that. I have a 32 PBICA which I now need to tune to run on this engine. Should be possible right?
    I have a 34 PBICA for spare parts.

    Carburators is a whole new world for me, but learning alot


    After fixing some air leaks the car runs quite well now through the gears and att higher speeds, but is lumping when driving at low speeds. I suspect I need to go from 45 to 50 on slow running fuel jet.


    Some pics of the car just because
    Peugeot 404 Solex Pbica jet size-img_20170723_121729_426.jpg

    Peugeot 404 Solex Pbica jet size-img_20150911_210129.jpg
    Last edited by BeJa; 17th July 2018 at 12:13 AM.
    friday403 likes this.

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