Jump to content

brad

AOAI Forum Members
 View Profile  See their activity

  • Posts

    1,045

  • Joined

  • Last visited

 Content Type 

Posts posted by brad

  1. Sealed Carb

    in Avanti Trivia

    Posted

    I mentioned at least 8, and I'm right. But truthfully there are more There's the 8 I mentioned, also the front and rear center screws (the meduim and long ones), The two accelerator jet screws,

    Just look at page 14 in the Avanti Workshop Manual in the fuel section if you wan't further proof.

  6. R-3 Box

    in Avanti Trivia

    Posted

    The carb box on Shelbys were hexagonal, and used Holley carbs. False.

    There were a few articles in Hot Rod Magazine that showed the Mustang blower with the R3 Box.

    But they weren't Shelbys, and weren't production setups.

  15. Avanti Steering Box

    in Avanti Trivia

    Posted

    I did see a Saginaw box @ the South Bend Swap in May two years ago. It caught my eye as it had the "rag" joint coupling on the top. Owners wanted something like $650 and said it was a rare prototype Avanti box. So I would think a Saginaw box was ate least considered. It would have been a great improvement over the Ross as far as steering effort is concerned.

  16. Heat Riser On R3?

    in 1963-64 Avanti

    Posted · Edited by brad

    I am confused about the heat riser on the right exhaust manifold. I get a constant gas smell in my garage after parking the car. Is this a problem with the heat riser and can it be prevented by disabling the riser? When the butterfly is closed does this allow gasses to heat the fuel or does the open butterfly cause the gas to heat the fuel?

    The heat riser forces the exhaust up and through the center leg of the intake manifold heating the manifold for better cold weather fuel vaporization. It functions when the valve is closed. There is no reason for it with todays fuel formulations. The fuel today is much lighter aromatic and evaporation rates and will only get worse with additional alcohol. Fuel is formulated to be under pressure in a closed environment.There has not been a carburetor factory used on cars since the mid 80's.....THAT'S 30 YEARS!!!!! Think of it like a pressurized radiator system...under pressure the fuel will not boil. Open to the atmosphere (like a carburetor IS) it will easily boil and evaporate, and make fumes. The trick is to keep the fuel as cool as possible eliminate the heat riser or disable it in the open position. Make sure there is a functioning return line. Increase the fuel pressure and regulate it as close to the carb as possible. Fumes can also originate anywhere there is a break in the sealed system. Look for bad hoses and connections, especially the large filler neck hose. Also look for rusted lines along the frame rails. There are areas where the factory slipped rubber protective hoses over the steel lines to prevent chaffing and often they rust under these rubber sleeves.

×
×
  • Create New...