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Thread: Oil catch tank

Forum to discuss Austin Healey Sports Cars

  1. #21
    Jedi Knight DerekJ's Avatar
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    Re: Oil catch tank

    My catch tank vents to atmosphere via a filter. Why would you want to direct this stuff back into the intake system?

  2. #22
    Yoda
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    Re: Oil catch tank

    Quote Originally Posted by DerekJ View Post
    My catch tank vents to atmosphere via a filter. Why would you want to direct this stuff back into the intake system?
    I'll bite: So you're not dumping it into the air we all breathe (why engines went from 'road draft' tubes, to carburettor tubes to PCV systems; most cars still use PCVs, for the same reason). It's generally agreed that combusting blow-by gasses is at least marginally less harmful than dumping them into the atmosphere (which may be true only if you have a catalytic converter, but the thought counts).

    I think, ideally, you have an 'oil-air separator'--i.e. a catch can--and a PCV. I put a separator on my Mustang GT, it traps about a teaspoon of oil every thousand miles.

  3. #23
    Jedi Knight andrea's Avatar
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    Re: Oil catch tank

    Low cost Chinese tank easy to control and unload in a NOT invasive position
    https://photos.app.goo.gl/9TrxtMQWv3kNFs2s9

  4. #24
    Yoda steveg's Avatar
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    Re: Oil catch tank

    Not only is Adrea's easy to empty, it has a sight glass to see whether it even needs to be emptied!

    The Ducati Diana has a built-in recycling road draft tube - reaching from the engine to the tail light. This allows vapor to condense and run back into the engine.

    screenshot.1710.jpg
    Steve Gerow
    Altadena, CA, USA
    Maker of most complete Big Healey rear disc kit
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  5. #25
    Yoda steveg's Avatar
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    Re: Oil catch tank

    Does anyone know the actual name of this type of clamp?

    screenshot.1711.jpg

    Found it: "hose separator clamp"
    Steve Gerow
    Altadena, CA, USA
    Maker of most complete Big Healey rear disc kit
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  6. #26
    Jedi Knight andrea's Avatar
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    Re: Oil catch tank

    Quote Originally Posted by steveg;

    The Ducati Diana has a built-in recycling road draft tube - reaching from the engine to the tail light. This allows vapor to condense and run back into the engine.

    [ATTACH=CONFIG
    59040[/ATTACH]
    Hi Steve
    Long time ago I have one similar to this 175 cc model DUCATI "CALIFORNIA" because have the seat fringed as Western and a knees protection with two chromed clack sons a poor imitation of Americans Motorcycles- but a strong and reliable motorbike

  7. #27
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    Re: Oil catch tank

    Andrea, RAC68 suggested in a previous post that the can should be mounted high enough to avoid the possibility of initiating a syphoning effect. I can't personally see how you could drain the sump this way but I was wondering whether you took any precautions and what your experience is mounting the can so low.
    AJ

  8. #28
    Yoda John Turney's Avatar
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    Re: Oil catch tank

    Quote Originally Posted by mgtf328 View Post
    Andrea, RAC68 suggested in a previous post that the can should be mounted high enough to avoid the possibility of initiating a syphoning effect. I can't personally see how you could drain the sump this way but I was wondering whether you took any precautions and what your experience is mounting the can so low.
    AJ
    If the can is connected to the T at the top of the valve cover, one won't get syphoning. If the can is connected to the vertical pipe from the side cover to the T, much more oil will be collected in the can. One of my experiments showed that.
    John, BN4

  9. #29
    Jedi Knight Lin's Avatar
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    Re: Oil catch tank

    John,
    So, what did you do for pressure relief and venting of the rocker cover?
    Lin
    1959 AN5 Bugeye - now with my son 😀
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