Hot bubbling gas

[terryb]

Hi guys, I need some help. This past weekend I put my jeep in a car and bike show and I won a top 25 plaque. Upon driving home which was about 5 miles I pulled into the garage and the motor smelled hot. water temp was fine at about 190, but the gas in the fuel pump glass was disappearing and bubbling hot. you couldn't keep your hand on the glass. my exhaust manifold has a small leak in it but it blows away from the pump. I'm replacing that when the new one comes in. my fuel line is about as far away from the manifold as I can get it.  any thoughts on why this is happening? I don't have a radiator shroud and would this help to route some air around the fuel pump.
Thanks as always guys, your thought and insight are always helpful to us green horns..
Terry :-/

[scoutpilot]

Check the bail holding the glass for tightness. It could be sucking air around the gasket. If that is tight, I recommend a new gasket for the glass. Beyond that, heat is still a relevant issue, despite your explanation. Your fuel line may be too close to the exhaust at some point between the pump and tank. Does the carb flood?

[terryb]

I don't think the carb floods but it is a little hard to start afterwards until the fuel gets pumped back up.
fuel hot enough to bubble like that worries me a bit.

[scoutpilot]

What is the routing of your fuel line?

[terryb]

my fuel line comes within an 1 1/2 at two places at my down pipe so that might be my problem. Im getting a new exhaust manifold in a couple days so i'll try and fix that as well.
on another note the fuel glass is tight.
thanks scoutpilot

[athawk11]

1 1/2" might be a little close.   I'm no closer than 4" to the manifold with this set up....



Tim

[scoutpilot]

Tim exhibits a beautiful example of the standard equipment and correct routing. The rubber flex line connects to a steel line that runs at the top-outer edge of the frame. Further, it runs outboard of the steering box, then ducks behind that down into the frame, where I'm sure it is held in place by spring clips.

[terryb]

nice setup,  thanks for the picture

[jamesr]

I was having vapor locking problems some time back, and I ran the gas line from the tank to the fuel pump in that serrated wiring loom that is split down the middle.  Stopped it all.

[Jesse]

Yeah I would vote to move your fuel line unreasonably far away from everything. This has been the solution to fuel problems in my experience from Packards to jeeps. 

A quick test could be loosely wrapping tin foil around the fuel line that is near the exhaust. It will block some heat to a degree and might reveal heat to be the cause.

-Jesse

[scoutpilot]

[size=12]For those of you operating in the Great Southwest, or at higher altitudes, you may want revisit the old posts about a carb heat shield. While they are difficult to locate as originals, they're fairly easy to fabricate.[/size][/b]