Topic: Carburater "leak down"


svmsr1044    -- 09-23-2014 @ 3:06 PM
  Is it "normal" for a '40 91-99 Carburater to "leak down" or to have gas spill out from the base when the engine is turned off? Thanks, Steve2


cliftford    -- 09-23-2014 @ 4:09 PM
  No, its not normal. I'm guessing you have a leaking power valve and/or PV gasket.


svmsr1044    -- 09-24-2014 @ 1:19 PM
  Additional info on my "leak down" carburator: The idle mixture screws have minimal effect in adjusting idle.
Kenct, do you have any thoughts on this one?
Thanks,Steve


cliftford    -- 09-24-2014 @ 3:57 PM
  That's a sure sign of the power valve or gasket leaking. At idle, the engine is drawing fuel through the power system instead of through the idle system.


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