fuel line woes

[ho70]

Ok, 1979 model Rochester Qjet on truck (72 402, auto) when bought it. Carb inline filter kpt clogging after two hours driving. Replaced gas tank with new tank and sender and rubber lines from sender to OEM line. Still clogging, so replaced fuel pump-still clogging. Found inline filter under cab and replaced now truck will not run over 40 mph as it starves for fuel. Probably gonna replace lines and take carb apart to clean. Do I have to replace return line as well?

[D-rock1981]

Make sure you put the filter on with the flow going the right direction. Return line on a carberator?

[ho70]

Originally Posted by D-rock1981

Make sure you put the filter on with the flow going the right direction. Return line on a carberator?

no gonna replace the tank to fuel pump line and wondering if I have to replace the return line to tank as well

[geezer#99]

Originally Posted by ho70

no gonna replace the tank to fuel pump line and wondering if I have to replace the return line to tank as well

Might as well!
You're making new lines anyway.

[In The Ten Ring]

By "return lines" do you mean your vent to charcoal canister lines?

I just finished making my own fuel lines to get rid of all the rust my fuel system was clogged with. I ran Krud Kutter (Lowe's) through my old vent lines to clean those. I hope I don't have to make a new vent line!

(New fuel pump, rebuilt carb, renewed fuel tank).

[cdowns]

have you tried the gascap for built up pressure if yes you have a bad or no vent