Thread: problems adding gas to saddle tanks

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Is there anything I can buy or do to avoid the backed up gas spillage when fueling my saddle tanks on my street rod???

make sure there's a vent in the top of the tank & that the hose or tube that comes off of it is higher then the filler neck..

Originally posted by bills30ford
Is there anything I can buy or do to avoid the backed up gas spillage when fueling my saddle tanks on my street rod???

sounds like they are not vented properly. got to have a vent.

Thanks I have done that however this spillage problem occurs on both tanks and the configuation and installation of the tanks have been found to be correct??
THX Again

Originally posted by bills30ford
Thanks I have done that however this spillage problem occurs on both tanks and the configuation and installation of the tanks have been found to be correct??
THX Again

where is the gas coming out at

The gas backs up the filler neck I ususally look for a gas nozzle that is vented (small holes) and squeeze the nozzle very easily and sometimes I am OK.

Is there any way to add supplemental tank vents??

Originally posted by bills30ford
The gas backs up the filler neck I ususally look for a gas nozzle that is vented (small holes) and squeeze the nozzle very easily and sometimes I am OK.

Is there any way to add supplemental tank vents??

if you look at and think about what you just said, you answered you own ? if the gas wont go into the tanks without coming back at you, then the tanks is not properly vented according to the amount of gas you can put in. probably the holes in the baffle are not big enough or no holes in the top of the baffles.

I had polyethylene saddle tanks on my '30 A-bone. All I did was avoid putting the nozzle too deep in the tank, and I filled them very slowly. How long is the filler neck? Mine were only a couple of inches long, and came through the apron above the running board.

Do you have only one nozzle to fill two tanks?

Mike
Sounds like your on to the root cause is there anything that can be done externally ie: running a vent tube inside the filler neck? The tanks I have are sealed units so adding holes to the baffles is not an option. Mike I really appreciate your input
Bill

I have the same short neck filler neck you had on your 30. Placing the gas nozzle on the outer edge and fueling slowly works only if the pump pressure is fairly low on my tanks

Originally posted by bills30ford
Mike
Sounds like your on to the root cause is there anything that can be done externally ie: running a vent tube inside the filler neck? The tanks I have are sealed units so adding holes to the baffles is not an option. Mike I really appreciate your input
Bill

i guess youve tried what henry said and if its still to slow then the only thing i know is if you can get the filler neck off and put a breather tube in it, and then dont run the nozzle all the way in. look like to me if you didnt put the nozzle all the way in should let the air come back up the neck, must have a small filler neck.

Mike and Henry
Thanks guys looks like I off the take the filler necks off and mod the breather tubes and whatever else I find along the way

Bill

My biggest problem with the saddle tanks is that whoever designed them put the bungs in the front. If I went to half a tank, then hit the go pedal, the gas went away from the pickup . . . cough, choke, sputter.