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Fuel Leak? Advice

Discussion in 'Fuel System & Electrics' started by Timc91, Jul 31, 2017.

  1. Timc91

    Timc91 New Member

    Messages:
    29
    Location:
    Brisbane
    Hi guys, picked up my 1974 t2 bay over the weekend and noticed a smell in my garage this morning. I got underneath and had a look and noticed a slow drip around what I believe is the fuel tank nibble. I'm wondering if any of you know the fix for this guy?



    Cheers,
    Tim
     

    Attached Files:

    Last edited: Jul 31, 2017
  2. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,323
    Location:
    Melbourne Bend of Islands
    Check the connection and make sure its not just the hose/clamp. Otherwise I would think its a tank out job. Question is why is it leaking? Corrosion or damage? There is available tank bodge up stuff that may glue up the problem for a while but probably not worth the risk of burning the bus!
     
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  3. David H

    David H Well-Known Member

    Messages:
    3,452
    Location:
    newcastle
    Hi Timc91,
    Welcome to Kombi club, best to introduce yourself in 'new members section' before posting questions;)?? Alpal's got it ......unfortunately for you:(. To answer.....lay under bus..........trace fuel line to source.......see if weep is from metal (base of tank) or around fuel line.
    Cry at answer of discovery as age of bus says tank.
    Cheers (or not)
     
    Timc91 likes this.
  4. Timc91

    Timc91 New Member

    Messages:
    29
    Location:
    Brisbane

    Thanks for your advice Alpal and David!
    The bus is off to the mechanics this morning for a proper inspection!

    Fingers (& legs) crossed that it's not a huge issue!

    And sorry about the protocol David! I'll go and introduce myself now!

    Thank you very much!!!
     
  5. cbus

    cbus Well-Known Member

    Messages:
    10,890
    Location:
    sunshine coast
    Welcome.
    First and critically important job on all new purchases is a complete fuel system check and replace all fuel lines unless they check out as being new.
    The "fix" in the photo is seriously dodgy so expect the same crap in other areas as well.
    Don't understand the clear muck on tank? Is there some pin holing in the metal?
    The nut indicates that you have a removable spigot and there should be a fine wire mesh filter inside.
    From memory there should be a thick Al washer .
    The hose is wrong size and will always leak.
    Change to correct size and use best quality hoses and efi clamps.
    A fuel filter with dual sized fittings can be used to convert from one hose diameter to another as required.
    There are personal preferences in hoses. Some like the old braided lines. They MUST be good quality if used and correct colour ( come in grey and black, need to check which is which. One is fuel the other air. Wrong one on fuel leaks as do poor quality ones. Guaranteed.)
    My preference is modern ,quality ,efi. Gives easier visual recognition of splitting or damage, more resistant to damage, guaranteed suitability to modern fuel blends. More resistant to abrasion , but still use grommets and good installation practice.
    Also critical to use correct sizings and check spigots into carbs.
    Common area of failure.
    Take all fuel smells seriously.
    Can be from fuel lines, fuel tank breather lines, weeping carbs, filler joiners, tank corrosion, fuel pump, seal to fuel level sender, excess fuel bypassing carb floats to enter sump ( critical situation, do not start engine).
    I will dig up the ' ratwell' advice on fuel lines.
    http://www.ratwell.com/technical/FuelHoses.html

    http://www.ratwell.com/technical/VacuumHoses.html


    Have deleted link to JK fuel lines.
    Appears they are now selling 5mm rather than the 5.5mm.
    Don't know what it is like.
    The 5.6 codan ( 57626) was good.
    Finding 5.5 efi is very difficult.
    Don't have any 5mm to test.
    From memory it was tight to fit.
    EFI would still resist splitting better than braided .

    I would never stretch a single layer braided line as they split easily.
    Testing 6mm mackay efi over an 8mm fuel pump . Has been sitting in the sun a few months and its still ok.
    Wouldn't do it in situ but interested to see how it holds up.
     
    Last edited: Aug 1, 2017
    PICT likes this.
  6. splitbus

    splitbus Well-Known Member

    Messages:
    3,279
    Location:
    Brisbane
    Leak looks to be above outlet, all wet, could be a rusted out tank
     
  7. Timc91

    Timc91 New Member

    Messages:
    29
    Location:
    Brisbane
    Just got home from the mechanics & the verdict is a rusted out /leaking tank. Now in terms of cost has anyone had a mechanic do this for them as I'm not game to drop an engine out myself.

    Fuel tank $800
    Labour 12-15 hours

    Total price of between $2600-3000
    Theses guys are on the little map someone posted a while back. But I'm just curious of other recommendations for Brisbane mechanics?

    Thanks
    Tim
     
  8. cbus

    cbus Well-Known Member

    Messages:
    10,890
    Location:
    sunshine coast
    Find another mechanic !
     
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  9. cbus

    cbus Well-Known Member

    Messages:
    10,890
    Location:
    sunshine coast
    I'm guessing the quote must include a fair bit more than just tank and rnr engine.?

    Considering the amount of rust converter and the clear sealant the previous owner was well aware of the problem.
    Dodgy deeds.

    Private or commercial seller?
     
    Last edited: Aug 1, 2017
    Timc91 likes this.
  10. Timc91

    Timc91 New Member

    Messages:
    29
    Location:
    Brisbane
    The quote was fairly simple just spelling out the labour of atleast 12-15 hours and the cost of the fuel tank. They also had a quick check and suggested the CV boots get replaced at the same time as they need the engine out also. All up they said they could do it all for the $3k.
    Just spoke to the seller and he's going to pay for it as he was unaware of the issue. Good news was the mechanics said everything else appears to be in good nick!
     
  11. cbus

    cbus Well-Known Member

    Messages:
    10,890
    Location:
    sunshine coast
    Good that seller is coming to the party.
    Someone has had a go at treating rust and sealing around the area.

    Consider the labour cost to rnr high if limited to rnr engine and tank.
     
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  12. Timc91

    Timc91 New Member

    Messages:
    29
    Location:
    Brisbane
    It was a fairly stressful afternoon I tell you what.
    I'm not to sure what you mean by rnr sorry?
     
  13. David H

    David H Well-Known Member

    Messages:
    3,452
    Location:
    newcastle
    Oh Timc91,
    Tank is $500 & R & R engine should be less than $500 plus R & R tank & you may as well do a new sender whilst in there so add $450 & then 4 CV's & boots $600 delivered ex Tooleys (only use Lhobro's.) My mechanic charged $145 to pack with grease & install CV's. Your guys were only talking CV boots ($100 del plus repack with grease & R & R for $145 so that's $400 less off the following figure) So $1450 plus $745 is $2,2k.
    Nice that the seller is picking up the tab. He's a Kombi groover;):p!!
    Cheers
     
    Last edited: Aug 1, 2017
    Timc91 likes this.
  14. David H

    David H Well-Known Member

    Messages:
    3,452
    Location:
    newcastle
    Remove & Refit. Take it off & put it back on.
     
    Last edited: Aug 1, 2017
  15. David H

    David H Well-Known Member

    Messages:
    3,452
    Location:
    newcastle
    Shouldn't be if you're a kombi owner 'in the kombi groove';):rolleyes::p:D. It's your bus now & it's here to teach you how to be less stressed 'cos you own a kombi (yeah.....I know they can be stressful financially but.....relax in the groove:cool:). You drive a Kombi:mad::confused::D. Enough emoticoms to meet your feelings of today???
    Cheers
     
    Timc91 likes this.
  16. cbus

    cbus Well-Known Member

    Messages:
    10,890
    Location:
    sunshine coast
    Rnr is my slack way of writing remove and refit.
    It can be stressful if you have insufficient info or not enough time to digest it.
    Understandably you are on a learning curve as we all have.
    My recommendation is ,if necessary, get things in writing and get back to mechanic when you have had time to digest the info or get further advice if necessary.
    Ask for clarification if necessary.
    A good mechanic will take the time to clarify.
     
    Timc91 likes this.
  17. David H

    David H Well-Known Member

    Messages:
    3,452
    Location:
    newcastle
    Maybe the seller did know something about the leak:rolleyes:;):mad:.
    Cheers
     
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  18. Timc91

    Timc91 New Member

    Messages:
    29
    Location:
    Brisbane
    Haha a good way to lighten the mood! Oh totally! I surprised my old man on Sunday to pick him up for a surf as he had no idea I'd bought one. Needless to say he was almost in tears as he thought he'd never get to ride in one again.

    Cheers!
     
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  19. David H

    David H Well-Known Member

    Messages:
    3,452
    Location:
    newcastle
    The first of many kombi memories for you & your family. Brought a little mist to my eyes:).... your joy.
    That's what I'm talkin' about:D.
    Cheers
     
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  20. Timc91

    Timc91 New Member

    Messages:
    29
    Location:
    Brisbane
    He went through three in his day. A splitty, a bay, and a t3 panel van. So it's been a while between trips. Probably closing in on 20 years!!! May the good times roll!
     
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