++Ok here goes, This is my 83 that I had raw gas smell that really would stink up the garage. You guys had lots of great advice and stink got a lot better. I bought a rebuilt carb, same one 4180C last year it ran fine. Now the stink came back, now for the strange part. The smell is for sure from the carb. So gas smell is bad most of the time after car is off. So I take off air cleaner and rear throttle plates are soaked with fuel so I think float is set to high or dirt in needle seat. I open fuel site screw gas is perfect, right at bottom of hole. Front fuel hole also perfect. So I am standing there scratching my head and all of a sudden about 10 large drops of gas drop into rear barrels on both sides Car is not running. What the heck so I remove site screw fuel is still at bottom of hole. So I restart car it cranks for 10 seconds and starts but runs rough until raw gas in intake burns off and then runs great revs up and the idle is perfect. It sits there running great and all of a sudden the front barrels spit out a bunch of gas and car stalls out. I check both site holes again fuel level perfect. I think maybe dirt in carb, which does not make sense to me but I take off fuel line and filter could not be any cleaner. I connect a clear plastic tube to fuel line where I removed it from carb, I put the end into a cup and crank engine with ign. off, it seems like I get a little gas and more air than gas out. I raise the open end of tube to remove cup and the clear tube is still about half full of gas as you would expect. This is the part that is strange. The gas is full of bubbles they keep coming up thru the gas like something is blowing air from fuel pump. Not just a few they are constant and large. I put my thumb over the end of the hose and it builds up a little pressure, this is all going on and no cranking. Could lots of air coming from fuel pump cause fuel to run into carb like I have described? and how would air get into fuel pump. The pump is bone dry no gas leak. Could air get in and fuel not leak out? There is no pressure in fuel tank I had the cap off. Thanks for any help. Sorry for long post.
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