1. RustyRatRod

    RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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    Ok so I have pretty much rebuilt the cooling system in this 64 Valiant, 170 slant, 3 on the tree. Water pump, thermostat, upper and lower hoses, heater hoses, heater core and radiator. Flushed the hound out of the engine. The radiator was the last thing I replaced the day before I drove the car on its maiden voyage to work. It's "around" a 20 mile trip, round trip.

    So here is the deal. When I first start it, I smell coolant. Didn't do it before the radiator swap. Now, when I did the swap, I got coolant all over God's creation. This is a 3 row radiator and the fan was sucking coolant out of the core and blowing it all over the engine after I got it running. The coolant was trapped in the core and not leaking from the radiator. It has zero leaks. Holds pressure good. It has the cold line, a line about a third the way up, the half way line and the hot line. It goes to the line a third the way up and stays there. No coolant on the ground. No coolant inside the car. No oil in the radiator. No coolant in the oil. But I can smell it. The smell is not coming from the exhaust. It's coming from under the hood. The smell goes away shortly after being started but always returns when I re-start. Then goes away I guess as it gets temperature on it. I've only driven it the "about" 20 mile round trip one time. Could this still be residual coolant residue coming off the radiator? Running regular green coolant.

    And yes, I have checked it with the infra red temp gun. It confirms the car is running cool as a cucumber, in the fridge.
     
  2. Cope

    Cope Fusing with fire

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    Yes. It smells for a while.

    Drive on the highway at speed and let her get warm while the air blows all the old coolant out of the cracks and crevices.

    Just drive her.
     
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    • Slantsix64

      Slantsix64 Well-Known Member

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      I got coolant all over God's creation. Coolant burning off heated parts
       
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      • RustyRatRod

        RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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        That's what I'm thinkin......hopin at least. LOL
         
      • valiantwagonguy

        valiantwagonguy FABO Gold Member FABO Gold Member

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        It's residual coolant burning off probably . Is it puking out the over flow hose?
         
      • lilfontleroy

        lilfontleroy annoyinglilLeRoy FABO Gold Member

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        you already knew the answer...... sounds like it might be time for a good cleaning under the hood
         
      • fklskv

        fklskv Well-Known Member

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        Im betting the smell will go away after a few runs

        On a separate note did you update the overflow to a closed cooling system? The closed system keeps the radiator full at all times.

        Run any coolant recovery bottle the fits in available space and a Stant 10231 cap. Great upgrade to the old mopar system for less the $20
         
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        • barbee6043

          barbee6043 barbee 6043 FABO Gold Member

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          It just needs a good bath at the car wash! Pressure was those rusty floor pans too!
           
        • j par

          j par Well-hung Member

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          Did you use screw clamps or spring clamps? Some can drip a drop or two until heat expansion.
           
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          • AJ/FormS

            AJ/FormS 68 B'cuda fb, Form S clone ... 367/A833/3.55s FABO Gold Member

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            Just for the heck of it, drag your finger over the inside of the windshield and then taste your finger. It may be that the heater system pulled in some air-born coolant and deposited a thin layer on the windshield. It will continue to smell every time the defroster warms it up.... until you wash it off. On mine, I had to eventually clean out the heater box too.
             
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            • 69FBCuda

              69FBCuda Life in the Fast Lane

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              Rinse the engine compartment with water
               
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              • flingdingo

                flingdingo Well-Known Member

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                I always pour a gallon or two of water around the engine compartment after major cooling system work and then go drive the car around.
                 
              • RustyRatRod

                RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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                Not a drop.
                 
              • RustyRatRod

                RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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                I did......probably several gallons with the garden hose. I think though that it is leftover that's gotten caught in the radiator core.
                 
              • RustyRatRod

                RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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                Hay orange........KNIFE!
                 
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                • famous bob

                  famous bob mopar misfit

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                  Hell might as well drink a qt. or so while ur at it !! LoL--------NOT !!
                   
                • jos51700

                  jos51700 Well-Known Member

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                  Bypass the heater core and see if it improves?
                   
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                  • 67Dart273

                    67Dart273 Well-Known Member

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                    Buy that guy a beer!!!
                     
                  • 1969383S

                    1969383S FABO Gold Member FABO Gold Member

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                    Any time I could smell it, it almost always 99% was the heater core or one of the heater hoses with a leak that was shooting trough the firewall.
                     
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                  • barbee6043

                    barbee6043 barbee 6043 FABO Gold Member

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                    If so dos it not always leak a puddle on the floor!! Loss of coolant from rad? I guess I could be a very small pin hole and make the smell.
                     
                  • Charrlie_S

                    Charrlie_S Well-Known Member

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                    Possible heater core. I have had bad right out of the box. Might also be coolant soaked foam in the heater box. My 84 D-100 needs a core. I can smell coolant, but no visible leaks, and passes pressure test. Probably just a little core "seepage". But I would drive yours a little more, before getting too involved.
                     
                  • JoeDragster

                    JoeDragster FABO Gold Member FABO Gold Member

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                    The smell should burn off or stop once you hose off the engine area......but. If it persist. Then the heater core is stopped up or leaking. Run the heater and see if you smell it or notice it won’t heat properly
                     
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