Show us your fuel fillers please, petrol cap end.

Discussion in 'Mech Tech' started by Merlin Cat, Sep 15, 2017.

  1. Merlin Cat

    Merlin Cat Moderator

    ive recently had a smell of petrol about my van. Mechanic found hole in fuel filler elbow so I ordered a new one from schofields, as recommended by tlbers. However, when I took it up to the mechanic he said it was wrong. Oh, I said and went to look at Landmark properly. The hole is a kind a split actually inside where you put petrol in. But needs to be there or you wouldn't be able to fill the tank.

    The obvious different thing when I look inside where I would put petrol in is a small hole at the top, I presume a breather pipe fits to this? The one I bought is all in one piece and I can't find a diagram to show anything similar. I'm attaching a photo, has anyone got one the same? Is it only USA vans?

    Advice/suggestions appreciated thanks

    IMG_3752.JPG
     
  2. Merlin Cat

    Merlin Cat Moderator

    This photo is taken looking down into where you put the petrol. Looks a bit off to me. As though a full piece of rubber has been put in, then someone made a jaggedy split in it to let petrol through?

    IMG_3751.JPG
     
  3. Where's the split?
     
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  4. Jules65

    Jules65 Supporter

    What year is your camper?

    The top section of rubber on mine looks like this

    [​IMG]

    [​IMG]

    Do these diagrams assist

    [​IMG]

    [​IMG]


    Sent from my iPad using Tapatalk
     
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  5. You have a nice original "bird beak one" mine used to look like that, I'll try and find a pic.

    Sent from my Nexus 6 using Tapatalk
     
    Last edited: Sep 15, 2017
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  6. Merlin Cat likes this.
  7. non california models in 79 had then as well. i have a normal one on mine as it was starting to split
     
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  8. mikedjames

    mikedjames Supporter

    You have to make sure that the USA tank breather hose no 17 etc gets blocked off at the tank properly if the new filler doesnt have provision for a breather hole.
    Otherwise you will not only have a permanent smell but a potential leak if that breather hose splits or drops down inside.
     
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  9. that breather isnt on a 79 usa in fact number 17 looks like a pickup part isnt it?
     
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  10. MorkC68

    MorkC68 Administrator

    If it helps, our Cali Westy (1977) has the pipe set up without the breather, we replaced the exact one that Merlin Cat has with a standard one with no issues.

    I may still have the old one somewhere :eek:
     
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  11. reading up the breather part may be on early fuel injection tanks only that still used the carb tanks so 74/75 only by the looks of it.

    either way nothing to worry about by replacing with normal
     
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  12. MorkC68

    MorkC68 Administrator

    some of the earlier FI systems had quite a complex air system - including air being pumped into the heads. As you say, replacing with normal will be fine and dandy :D
     
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  13. Merlin Cat

    Merlin Cat Moderator

    Cheers for replies chaps.
    @snotty the split is horizontal across the big hole in 2nd pic. But it must be supposed to be or it would be impossible to fill the tank?

    @Jules65 it's a 78 bus. The elbow I bought looks like your top photo.

    @pkrboo cheers for the diagrams I'm just out so only on phone will look in bigger screen when home later

    Cheers @MorkC68 was yours a fuel injection? Mine was but importers changed to twin carbs

    Thanks @mikedjames i will look at diagram later then the bus at the weekend
     
  14. Does match up with @pkrboo 's pic. The beak/ring may be to make sure you can't put a leaded pump nozzle in, or to stop fumes escaping as a primitive emissions fix. Either way, a stock filler elbow should be fine.
     
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  15. MorkC68

    MorkC68 Administrator

    @Merlin Cat yeah its fuel injection, gonna try and stick with the FI system, its nice when it works well :D
     
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  16. Merlin Cat

    Merlin Cat Moderator

    Hi @snotty it looks like @pkrboo photo on the samba link inside except I can't see if his has the little breather hole.
    @MorkC68 if I change for just the elbow one what happens to the breather pipe that must be currently connected to my existing one? Where will the tank vent too?
     
  17. Merlin Cat

    Merlin Cat Moderator

    I've been looking at the diagrams @Jules65 has put up and guess mine matches the top and bottom diagrams.

    It's just come to my realisation though that as my filler elbow looks like a beak type then it isn't a unwarranted split but how it's meant to be. That brings me back to the initial problem of why is the van smelling so much of petrol? There are no obvious leaks in accessible areas.

    If no obvious leak then with just fumes smell it should be ok to drive?
     
  18. Flakey

    Flakey Supporter

    It's FI isn't it? Have a good look round the engine when it's running as the fuel is under much higher pressure than on a carb bus. If no jetting out of any joins then bring it to techys and we can get the firewall off fairly easily and see what's going on behind there!
     
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  19. Merlin Cat

    Merlin Cat Moderator

    It was Fi but been converted to twin carbs. Would it have a higher pressure fuel pump still? (I realise I'm possibly saying something completely ridiculous here!)
     

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