Coolant flow to heater core?

Heating / Cooling / AC

  1. 512Stroker

    512Stroker We are all here because we are not all there.

    Messages:
    1,472
    Likes Received:
    1030
    Joined:
    May 30, 2016
    Location:
    Freedom, MO
    Local Time:
    3:07 PM
    1967 Barracuda small block with factory A/C
    On a factory stock cooling system which heater hose is the supply line to the heater core?
     
  2. Syleng1

    Syleng1 Karma is real and Life is short... FABO Gold Member

    Messages:
    1,554
    Likes Received:
    1142
    Joined:
    Jul 5, 2005
    Location:
    North Franklin, CT
    Local Time:
    4:07 PM
    Run this one thru the search feature. Just looked it up on Saturday.
    there is a nice picture on one of the first posts.
    Not being a smart Azz either. I cannot duplicate the post. Arrows and everything.
     
    • Thanks! Thanks! x 1
    • kursplat

      kursplat FABO Gold Member FABO Gold Member

      Messages:
      2,704
      Likes Received:
      1758
      Joined:
      Aug 24, 2010
      Location:
      so cal
      Local Time:
      1:07 PM
      believe it's the passenger side
       
      • Thanks! Thanks! x 1
      • kursplat

        kursplat FABO Gold Member FABO Gold Member

        Messages:
        2,704
        Likes Received:
        1758
        Joined:
        Aug 24, 2010
        Location:
        so cal
        Local Time:
        1:07 PM
        so i just realized you might be asking off the engine side.
        here's a shot from the 68' manual (which strangely doesn't list barracuda for this :wtf:)
        anyway we all know a barracuda is just a sad looking valiant anyway...:rolleyes:

        Untitled.png
         
        • Thanks! Thanks! x 1
        • rklein383

          rklein383 Well-Known Member

          Messages:
          1,542
          Likes Received:
          455
          Joined:
          Dec 2, 2005
          Local Time:
          3:07 PM
          upload_2020-6-29_12-2-29.png
           
          • Like Like x 2
          • Syleng1

            Syleng1 Karma is real and Life is short... FABO Gold Member

            Messages:
            1,554
            Likes Received:
            1142
            Joined:
            Jul 5, 2005
            Location:
            North Franklin, CT
            Local Time:
            4:07 PM
          • 512Stroker

            512Stroker We are all here because we are not all there.

            Messages:
            1,472
            Likes Received:
            1030
            Joined:
            May 30, 2016
            Location:
            Freedom, MO
            Local Time:
            3:07 PM
            So if I am reading that diagram correctly with my old eyes
            Coolant flows from the intake manifold on the engine into the heater core and then returns to the water pump. Correct?
             
            • Agree Agree x 1
            • Dana67Dart

              Dana67Dart Like a fine wine, only getting better with age! FABO Gold Member

              Messages:
              4,389
              Likes Received:
              2673
              Joined:
              Jul 16, 2017
              Location:
              Northern Colorado
              Local Time:
              2:07 PM
              This is from 67 dart Coronet charger FSM
              15934525601828939776976195050911.jpg

              Outlet of heater core is on driver's side (Left hand drive car)

              Outlet goes to water pump.

              Here is a Dart specific image.
              Same driver's side outlet and water pump connection, just hose routing is a bit different.

              15934527310441577651008107273045.jpg
              If I'm not mistaken the 67 Plymouth Suppliment is the barracuda FSM

              MyMopar - Mopar Forums & Information - Service Manuals
               
              • Like Like x 1
              • Thanks! Thanks! x 1
              • 69_340_GTS

                69_340_GTS Well-Known Member

                Messages:
                3,909
                Likes Received:
                1788
                Joined:
                Jul 11, 2014
                Location:
                Torrington, CT
                Local Time:
                4:07 PM
                To simplify, normally the intake manifold or the head feed the heater core. Return is normally to the water pump.
                 
                • Like Like x 1
                • 512Stroker

                  512Stroker We are all here because we are not all there.

                  Messages:
                  1,472
                  Likes Received:
                  1030
                  Joined:
                  May 30, 2016
                  Location:
                  Freedom, MO
                  Local Time:
                  3:07 PM
                  Thanks to all who replied.
                  I am installing a four seasons valve and wanted it in the inlet side of the heater core.
                  Thanks again
                   
                • oldkimmer

                  oldkimmer FABO Gold Member FABO Gold Member

                  Messages:
                  15,409
                  Likes Received:
                  4261
                  Joined:
                  Nov 11, 2006
                  Location:
                  Kindersley, Saskatchewan,
                  Local Time:
                  3:07 PM
                  Yes, the water pump actually sucks coolant. Kim
                   
                • 66 Valiant wagon

                  66 Valiant wagon Well-Known Member

                  Messages:
                  149
                  Likes Received:
                  118
                  Joined:
                  Jun 16, 2019
                  Location:
                  Minneapolis, MN
                  Local Time:
                  3:07 PM
                  I bought one of those valves too. Where are you gonna mount it to?
                   
                • Dana67Dart

                  Dana67Dart Like a fine wine, only getting better with age! FABO Gold Member

                  Messages:
                  4,389
                  Likes Received:
                  2673
                  Joined:
                  Jul 16, 2017
                  Location:
                  Northern Colorado
                  Local Time:
                  2:07 PM
                  is that just a water shut off valve?

                  if it is now you will have coolant just sitting in the heater core, might it hurt longevity of the core? I know a lot of cars have them, just raising the question.
                   
                • 512Stroker

                  512Stroker We are all here because we are not all there.

                  Messages:
                  1,472
                  Likes Received:
                  1030
                  Joined:
                  May 30, 2016
                  Location:
                  Freedom, MO
                  Local Time:
                  3:07 PM
                  Yes it is just a shut of valve
                  I installed a 5/8 ball valve in heater core supply hose. Made a bid difference, my feet no longer get hot.
                  Well my heater core I believe is original to the car, 67 Barracuda, nothing has killed it yet. The 50/50 coolant that is in there is new should not hurt it.
                  Probably a good idea to open the valve periodically.
                   
                  • Agree Agree x 2
                  1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
                    By continuing to use this site, you are consenting to our use of cookies.