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Discussion Starter #1
I was noticing yesterday that sometimes when my car is idleing I can see air apparently coming through the fuel line into the filter (I have a clear fuel filter, obviously). The air then gets sucked through the screen and carried to the carb. Is this normal? Could it account for some of my less-than-perfect idle? If it is sucking air at idle, what does this mean is going on at higher RPM? Do I probably have a leak in the line somewhere (the rubber hose between the fenderwell and pump and the short piece between the metal tube from the pump to the filter + carb is all new), or is could something be wrong with the pump? Sorry for all the questions, and thanks for the help! :)

'65 289 4V Edelbrock 1405 600CFM C-4 yada yada yada
 

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I seem to remember always seeing somewhat of an air pocket in those see through fuel filters. I don't think it's anything abnormal (I could be wrong?....Nah).

Believe me, if you had a pinhole in the fuel line somewhere, you'd be stalling out a bunch. My brother had a pinhole in the fuel line on an old buick he had, and it took us a long time to figure out why the dang thing would just up and quit when you tried to go faster (we weren't to swift back then). More gas you try to give it, the more air it sucks in. It begins to falter really bad and then just quits from lack of fuel. Talk about a pain to figure. So, in 1975, we were the original "Doofus Twins".....lol

Dang! Just when I got used to being "strange", I became a "newbie", then a "tire-kicker". Now I'm a "beginner"?.....hmmmmmm...where do I start?
 

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If you had a leak gas would be on the floor.

I had one of those clear filters on my 289 in front of the carb. Darn thing was full of air all the time. I don't know how critical it is. I'd guess it isn't important at all. The fuel to run your car comes from the fuel bowl anyway.

Phil

'65 Convertible (with many mods.)
http://www.blueriver.net/~finite/Pony.htm
 
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The bubbles you see is gas vapor that forms when the fuel gets hot. An inline filter between the pump and carb is the number one reason for poor starting (vapor lock) when hot and poor idle qualities. Better to put the filter before the pump if you are in a hot climate.

Mustang Lovers ---- A Box-O-Choclates !!!
 

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Discussion Starter #6
Hmm.. That explains why the PO had it in that location (DOH!). I'll move it tomorrow and see if that helps. Thanks :)

'65 289 4V Edelbrock 1405 600CFM C-4 yada yada yada
 
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