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What is this for?

Discussion in 'Engine & Transmission' started by Alpal, Aug 18, 2008.

  1. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,509
    Location:
    Melbourne Bend of Islands
    Spigot on passenger side of enginne fan housing. As you can see its plugged off.
    1977 bay double cab, 2 litre engine. (76 build)
    [​IMG]
    None on our 79 Schmetterling engine.
     
  2. Bay_Buddha

    Bay_Buddha Member

    Messages:
    397
    Location:
    Berowra Heights,North of Sydney
    Alpal, Off the top of my head while i'm at uni I think it might be air to the charcoal cannister? Probably wrong but I can't think of anywhere else...


    I know my donk has the same but I can't remember where it goes. I will have a look when i'm working on it tomorrow for you and post again.

    Phill.
     
  3. Van Housing

    Van Housing Well-Known Member

    Messages:
    10,422
    Location:
    Yarraville Vic
    I looked in a couple of manuals but couldn't find anything... curious... I will be interested in the answer.

    This is how the area looks in our kombis - there is nothing attached, and they are not blocked off...

    From Luna (CJ engine)
    [​IMG]

    From Woger (AP engine)
    [​IMG]
     
  4. kombikid76

    kombikid76 New Member

    Messages:
    652
    Location:
    sunny sydney
    phill is on the money, should have a hose running up to the charcoal canister (mounted on engine firewall).

    charcoal canister may or may not still be in ur bus...
     
  5. Marty

    Marty Active Member

    Messages:
    2,290
    Location:
    Sunny Melbourne
    When did they start putting the charcoal cannister in the busses?
     
  6. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,509
    Location:
    Melbourne Bend of Islands
    From a quick look seems to come from fan housing so would servr no purpose to filter it.
    Next offer? Maybe there should be a prize?
     
  7. Bay_Buddha

    Bay_Buddha Member

    Messages:
    397
    Location:
    Berowra Heights,North of Sydney
    I'm gonna stick to my guns on this... I rekon it's just a feeder to the charcoal canister to help the air flow through.

    I am basing most of this theory on logic however... I'll have a look in the morning.

    I am certainly open to correction so I can set it up right before I put my baby back together!

    Phill
     
  8. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,509
    Location:
    Melbourne Bend of Islands
    Another thought is that its part of the plumbing for fuel injection system. Maybe our Doppel Kabin vos fuel injected? Came with a single weber so may have been detuned?
     
  9. Doc

    Doc Well-Known Member

    Messages:
    2,904
    Location:
    Gunnedah
    Sorry Alpal
    Bay Buddha is correct its to "recharge" The charcoal cannister. Gas tank fumes go into the charcoal cannister, when the engine starts the fan blows air into the cannister and the into the air intake blowing away the petrol fumes.
    Now what do I win!
     
  10. Van Housing

    Van Housing Well-Known Member

    Messages:
    10,422
    Location:
    Yarraville Vic
    On the firewall, you say...? Hmmmm, now I think I know why Woger has such aromatic fumes! :D Thanks heaps for the info.... :)
     
  11. gsa2at

    gsa2at New Member

    Messages:
    1,699
    Location:
    MAROOCHYDORE
    i had a black plastic bo connected to nothing on the "roof" of my engine bay
    i took it out
    i guess this was said charcoal cannister
     
  12. Doc

    Doc Well-Known Member

    Messages:
    2,904
    Location:
    Gunnedah
    Yep........
     
  13. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,509
    Location:
    Melbourne Bend of Islands
    Kudos oh honourable Guru! Thanks all for your contributions and explainations.
     
  14. Dingostrategy

    Dingostrategy Active Member

    Messages:
    4,322
    Location:
    SW Vic ++
    How good did you feel writing 'our kombis'!

    Is plural, is good.

     
  15. Joel

    Joel New Member

    Messages:
    120
    Location:
    Northern Rivers NSW
    US has had charcoal canisters since 70 but they didnt start in aus till some time 75
     
  16. Van Housing

    Van Housing Well-Known Member

    Messages:
    10,422
    Location:
    Yarraville Vic
    So is it better to leave them blocked or unblocked?
     
  17. Bay_Buddha

    Bay_Buddha Member

    Messages:
    397
    Location:
    Berowra Heights,North of Sydney
    Hey Woz,

    I don't think it would make a difference either way without the canister... As it's not pushing warm air into the part of the engine that needs cool air so I don't see any harm being done.

    Maybe try putting a balloon on to see how much air it pushes???

    Phill.
     
  18. Joel

    Joel New Member

    Messages:
    120
    Location:
    Northern Rivers NSW
    most ppl just cap them off but the amount of cooling air lost certainly wouldnt cause over heating if it did u got bigger problems
     
  19. Van Housing

    Van Housing Well-Known Member

    Messages:
    10,422
    Location:
    Yarraville Vic
    Cool! - I'll leave them as is! :)
     
  20. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,509
    Location:
    Melbourne Bend of Islands
    Put a hose on it and direct it out the back. Jet propulsion!
     

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