Overfilling diesel

Discussion in 'Motorhome Chat' started by GJH, Jun 13, 2012.

  1. GJH

    GJH Funster Life Member

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    We went to top up the diesel and gas this morning ready for our next trip. Gas was fine but the diesel didn't stop. Normally I hear a gurgling sound and then the overfill protector clicks and stops the fuel. This morning I heard the gurgle and then diesel started spilling out of the filler neck.

    Never known that happen on any vehicle (petrol or diesel) that we've had so can anyone advise what causes it and how I can prevent it in future?

    The attendant at the garage said that it hadn't happened for a long time but used to happen often on BT vans so is it a problem with the garage or the van?
     
  2. hilldweller

    hilldweller Funster Life Member

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    Sounds like a faulty pump to me.
     
  3. Gooney

    Gooney Funster

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    Diesel pump delivering a load of bubbles in the fuel?
     
  4. GJH

    GJH Funster Life Member

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    Thanks. I hoped it was their pump rather than the van. I've used it only once before and it was OK then. Hope they fix it because the place is convenient. It isn't far away, we can pull up at the LPG pump to top up the Alugas bottle and then pull forward a few feet to fill up the diesel.
     
  5. vwalan

    vwalan Funster

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    hi could also be that some vehicles arent breathing properly and the filler neck gets full of fuel then air from the tank blows it out . just have to be careful when filling .also some pumps are a fast fill for trucks etc . they can fill quicker than the breathers on the tank work.
     
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  6. Road Burner

    Road Burner

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    Over filling diesel

    Happened to me in a slightly different way. I was filling up my Bessacar E560 and wanted to fill it to capacity. So I heard the click (cut off) . Like I do with the car I tried to top it up a bit more, resulting in quite an overspill. Lesson learned . stop filling after pump cuts off.
     
  7. motor roamin

    motor roamin Funster

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    Afraid if I am not very carefull that is what hapens to mine and I end up with 3/4 instead of a full tank :RollEyes:

    All the best Rick
     
  8. Noggin

    Noggin Funster

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    Got to admit, I did the opposite :Doh: filled up, Click! stopped and paid.
    Later in the day
    "Hmm fuel is going down quick! hope i havent got a leak??"
    Turned out I hadnt nearly filled it!! (You would have thought I would have noticed when paying that it was a "bit" less!!)

    With my old L200, I had to rock the cab when it first clicked to let the bubbles settle!
    I would say it is a "Bubbly" dispenser nozzle, and you will need to keep an eye when filling!:Smile:
     
  9. Snowbird

    Snowbird Funster Life Member

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    Worst is when it blows back all over your suede brogues. Ruined a very expensive pair doing just that.:Sad:
     
  10. GJH

    GJH Funster Life Member

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    Thanks all, for your responses. I'll definitely be keeping my eye on it in future :Smile:
     
  11. mikebeaches

    mikebeaches Funster

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    Interesting thread - same as above happened to me in France last week. Fortunately, the spill wasn't too bad and I always stand out of the way in any case.

    BUT, according to the Fiat handbook for the van (X250), there are significant warnings NOT to overfill the tank; advising it can cause serious damage. I don't know what that is all about and what damage it can cause - should I be concerned? Think it's probably the second time it's happened since having the van new just over 18 months ago.

    Can somebody explain what the problem is? Surely, commercial vans get 'topped up to, and over, the brim' all the time.
     
  12. JJ

    JJ Funster

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    Not more interesting than one on washing net curtains surely? :Eeek:

    JJ :Cool:
     
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  13. callumwa

    callumwa Read Only Funster

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    Were they Blue ones?

    [​IMG]

    Rock On......:thumb:
     
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  14. GJH

    GJH Funster Life Member

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    No, it's JJ that's the City supporter :Laughing:
     
  15. vwalan

    vwalan Funster

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    hi mb, commercials have a real big filler usually right on the top of the tank .you dont leave them to fill up themselves as very often the nozzle falls to the floor .you learn fast .keep your eyes on what you are doing.
    also you do have to allow for expansion . i filled one of my tanks to the brim leaving maroc .a few days later i had to syphon some out to put in one of the other tanks as the sun was causing the fuel to expand and come out the lid.
    i had 3 big tanks on that truck .good job one was getting well down. cant waste it.
    gotta have 500litre tanks if going to places with cheap fuel.
    many have up to 1500ltr tanks . the accepted custom limit for cross borders .but have to be slung tanks not across the chassis.
     
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  16. Landy lover

    Landy lover Funster

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    I do not know about the vehicles concerned here but I do know that some vehicles have breathers that terminate in a filter, non return valve, and anti flash above the level of the top of the tank. Overfilling will cause these to be contaminated if the fuel expands in the tank and reaches these - as they are a non service item and in truth many mechanics do not even know they are there as they are generally concealed in a cavity they are never looked at. Replacement can be a costly job
     
  17. TheBig1

    TheBig1 Funster Life Member

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    not so expensive abroad as it is here, however a bubbling or frothing pump is likely to give short measures. As in less diesel delivered than registered as a percentage is gas/air.

    as for the auto shut off kicking in, this may be caused by the breather hose belching out fumes or a baffled (internally seperated) tank causing an airlock where the tank shows as full until the content has settled in all chanbers.

    A good trick is to wait 10 seconds after aouto shut off then try again

    Agree with landylover, the valves and level sensors can be damaged by overfilling. To repair normally means draining down and taking the tank out. Not always as simple as you might think, so expensive
     
  18. Jaws

    Jaws Funster Life Member

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    More to the point.....

    I hope you put sand on the spill :Wink:

    Believe me, one of the worst things that can happen to a motorcyclist is putting a foot down at the pumps only for it to slip away from you.. Massive groin strain and a rather dented bike !! :Doh::cry:
     
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  19. Gooney

    Gooney Funster

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    Or indeed getting into your car after stepping in fuel and finding your feet slipping off the pedals!!
     
  20. Jaws

    Jaws Funster Life Member

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    But at least you dont end up with a leg trying to get behind your ear !!! :Rofl1:
     
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