Topic: Carburetor running "rich"


Flathead    -- 06-14-2011 @ 5:45 PM
  Gentlemen..The "new" Stromberg 97 installed on my 46 59ab is running very rich and I feel dumping too much fuel. The plugs as well as exhaust pipe ends are "BLACK". I have converted to 12 volts and have also installed a Mallory electronic ignition. The engine was completely rebuilt in June 09..and runs like a "Rolex". I am completely satisfied with performance but would like to "lean" the mix to get a cleaner burn and save what I feel is un-necessary wasted gas. The stock metering jets are 0.045 and the power valve is a 65. Would you recomend going to a smaller jets and power valve? And if so what size would you recomend? Jets are available from 0.033 to 0.050 and power valves from 60 to 72.
I
Ilive in New Jersey with moderate temps. and also at Sea Level...Thanks for any advice...Brian


supereal    -- 06-14-2011 @ 5:57 PM
  You could reduce the jet size to lean out the carb, but it is likely that it will not match the performance of the correct carb for the 59AB. The 97 was a good carb in it's day, but the later units, such as the 94 are more suited to your application.


37RAGTOPMAN    -- 06-15-2011 @ 4:24 PM
  I would look down the carb with a mirror and a light and see if it is dripping gas,[ WHEN RUNNING ] you might have a small piece of dirt in the needle and seat,not shutting the fuel off when it reaches its level, also you did not say what kind of fuel pump you have on , it might be making to much pressure ,give it a test, just to be sure,
the 97 carb should not make it run rich,
my 3 cents 37RAGTOPMAN


ken ct.    -- 06-15-2011 @ 11:24 PM
  You could try .043 MJ's and maybe a 67 PV but i dont think it will make much diff. The PV would be the hardest to find. Try hotter plugs. ken ct.


EFV-8 Club Forum : https://www.earlyfordv8.org/forum
Topic: https://www.earlyfordv8.org/forum/viewmessages.cfm?Forum=18&Topic=3238