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What's wrong with this picture?

Discussion in 'Technical Q&A' started by Irishman, Aug 26, 2006.

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  1. Irishman

    Irishman F1 Rookie

    Oct 13, 2005
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    #1 Irishman, Aug 26, 2006
    Last edited by a moderator: Sep 7, 2017
    I am trying to work on my "new" '78 308. I try to research jobs here at F-chat beforehand and I take notes as I go. I am a bit surprised by the picture below. You are looking at the thermostat housing. Is the blue circled bolt the bleed screw (I was led to believe it was a brass screw and not a bolt)?

    Also what is the red the circled device which has a broken hose? Part of this apparatus connects to the bottom / intake manifold part of the carbs.

    I entered into this area because of a coolant leak from the hose leaving the thermostat housing. In general I thought my fuel hoses were in pretty good shape until I got here. I now see a combination of new and old hoses and some plugged and non-terminating hoses -- yikes.

    Thanks,
    Seamus
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  2. miketuason

    miketuason F1 World Champ
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    #2 miketuason, Aug 26, 2006
    Yes Blue circle is a brass bleeder bolt.
    Red circle sorry not sure but someone here should be able to identify that.
     
  3. Sean F.

    Sean F. F1 Rookie

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    #3 Sean F., Aug 26, 2006
    If you have a manual you can see a diagram of it. It is part of the fume recapture system. All the carbs connect back together too one line which goes to a charcoal canister on the passenger side rear so gas fumes do not escape and "harm the environment".

    I think you can DL the owners manual at ferrari.owners site.

    It's useless. Unless you're going for concours I'd say take it off.
     
  4. Irishman

    Irishman F1 Rookie

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    #4 Irishman, Aug 26, 2006
    Cool! Only thing I'm going for is a beer run.

    Thanks,
    Seamus
     
  5. f355spider

    f355spider F1 World Champ
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    #5 f355spider, Aug 26, 2006
    Watch out with the bleed bolt...it does not have a hole in it...so it is an all or nothing proposition to use it. Verell makes a good point to drill it in a drill press so it will work like a traditional bleed screw.
     
  6. Meister

    Meister F1 Veteran
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    #6 Meister, Aug 26, 2006
    Meaning through the threaded shank of the bolt, not down through the head =)
     
  7. Irishman

    Irishman F1 Rookie

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    #7 Irishman, Aug 26, 2006
    Yes, I may be daft but not that to that extent :).

    Though I am wondering why test pipes cost so much.

    Seamus
     
  8. Meister

    Meister F1 Veteran
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    #8 Meister, Aug 26, 2006
    Didn't mean that personally in any way!

    Just thought there needed to be more clarification.
     
  9. PenP

    PenP Formula Junior
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    #9 PenP, Aug 26, 2006
    Does the therm bleed bolt have to be made of brass?
     
  10. Meister

    Meister F1 Veteran
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    #10 Meister, Aug 27, 2006
    My thought would be that it should be some sort of alloy that is not prone to corrosion when in contact with H20/coolant mix.

    Most bleed screws are brass or the like
     

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