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BRINGING IT ALL TOGETHER.... A's, G's & E's


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SoapDude
RodStRace
ChevyVanMan1
sasktrini
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    Got the Blues? Draft Tube to PCV Valve Conversion

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    Got the Blues? Draft Tube to PCV Valve Conversion - Page 2 Empty Re: Got the Blues? Draft Tube to PCV Valve Conversion

    Post by Guest Tue Aug 23, 2011 4:44 pm

    Saw this and started doing some research on doing this on my 144. I found this thread about it which should also help with your 170 when you get to it. I'm going to do this soon.
    OldSkoolVannin
    OldSkoolVannin


    Number of posts : 51
    Location : New Jersey
    Registration date : 2011-11-19

    Got the Blues? Draft Tube to PCV Valve Conversion - Page 2 Empty Re: Got the Blues? Draft Tube to PCV Valve Conversion

    Post by OldSkoolVannin Sat Feb 11, 2012 7:15 am

    Great post! I"ve had my 170 E100 for about 5 months now and while some think the smell gives it the Old time "character", but those if us from this century don't Smile. My wife loves the uniquness of the ride (it is older than she is) but I have to 1) Get rid of the smell, and 2) install seat belts before she'll ride with me again.

    As I see it, I just connect the bottom of the venting tube that goes down the front left of the engine back up to the npt port in the manifold under the carb with a rubber hose? The pictures (in this post above) of the brass fittings at the carb are great. Exactly where and how is the appropriate Pcv "teed" into it? Would it Hang it upside down @ the bottom of the vent tube? (Does it matter if the actual pcv valve is right side up or upside down?) Then I just get a new air filter housing with a tube connection and connect it to a breather cap with a hose??? Would anyone have a part number or detailed spec that would identify a specific pcv that would be appropriate.

    Does not sound too complicated, I guess it is just a physical mod, I mean the there is no "computer" to connect sensing wires too?
    Casimier
    Casimier


    Number of posts : 864
    Location : Jackson,NJ
    Registration date : 2010-07-26

    Got the Blues? Draft Tube to PCV Valve Conversion - Page 2 Empty Re: Got the Blues? Draft Tube to PCV Valve Conversion

    Post by Casimier Sun Feb 12, 2012 6:52 am

    Hey Oldskoolvanin
    I see you are from Jersey..good to have you on VintageVans.
    I know your dilemma...ie about the fumes and the wife not wanting to ride in the truck. Three point seat belts are relatively easy to install...get the good ones. There is a post on VV,s about an install. As to the pvc install on your 144 I'd say try searching the junkyards for a complete setup (valve cover, pvc and air cleaner, etc)from an old Falcon or Comet. This way you have the year and all pieces match up. Corey aka Saktrini and/or Rod I'm sure will respond to your question if you IM them.About the fumes...never ending battle.....I'm running a 300 with a closed system and the doghouse still lets in fumes..no matter how many times I,ve sealed the rubber. My last straw attempt will be to put a small blower fan inside the doghouse soon. Anyway, welcome to Vintage Vans...I'll let you know when I'm going to the junkyard in south jersey that has a few earlies left.
    Jim
    sasktrini
    sasktrini


    Number of posts : 2067
    Location : Saskatoon, SK, Canada
    Registration date : 2008-05-20

    Got the Blues? Draft Tube to PCV Valve Conversion - Page 2 Empty Re: Got the Blues? Draft Tube to PCV Valve Conversion

    Post by sasktrini Sun Feb 12, 2012 11:32 am

    Something to note:

    The Big Six has the PCV and breather both in the valve cover, and it is split so that the breather allows fresh air in to the first half of the valve cover. Airflow is forced into the crankcase because of the baffle, and then is drawn up from there into the PCV half of the valve cover and into the intake charge.

    With the Falcon Six, there is no baffle in the valve cover. I suppose that fresh air is introduced from the breather cap to the valve cover into the crankcase and directly out the draft tube.

    I guess what I am suggesting for the Falcon Six, there's a couple options:
    1) replace engine block draft tube with PCV
    2) block original draft tube, create second zone by putting a baffle in the valve cover (must fit around rocker assembly), and put PCV valve in valve cover like I did on the 240.

    On another thought, this doesn't eliminate fumes coming in through the doghouse leaks. What I observed was that sitting at idle made the fumes from the engine fill up the cab almost immediately, because the vehicle must be in motion for the draft tube system to work. Most were evacuating from the breather cap. So rather than dealing with a leaky doghouse, this solution addresses this one problem at the source. I think initially, I was looking to see if it was an exhaust leak.

    I don't recall which PCV valve I used...

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