Tip for removing radiator

Slant 6 Engines

  1. Mako21

    Mako21 Active Member

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    Hey guys, pulling out my 22 inch radiator on the 76 Dart after work this evening. Found a reputable shop to rebuild it. Any tips or tricks I should look out for when doing so. Looks fairly easy. I’ll have to plug the transmission cooler lines running into it, disconnect upper/lower hoses, push the fan shroud forward, remove brackets.
     
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    • dadsbee

      dadsbee FABO Gold Member FABO Gold Member

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      Find a couple of rubber caps to pop over your transmission lines flare so they don't drain...and push that rad shroud aft.. not forward, but I know what you meant! lol Drain the radiator and block the best you can, rad cap off and drain cock open. The lower two radiator bolts just need to be loosened and remove the upper two bolts, then the rad slips out of the bottom ones.
      1969dartswingercleanup 191.JPG
       
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      • Demonracer

        Demonracer 71 Demon 00 Ram 16 Chrysler 300S 05 Caravan FABO Gold Member

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        Put a piece of rubber hose between the 2 cooler lines. That way you don't have a puddle of tranny fluid under them. Have them check the drain petcock if you haven't already. take the hose clamps loose & unhook the hoses, take the bolts out & remove the radiator. Then reverse the process for reinstallation.
         
      • LJ67barracuda340

        LJ67barracuda340 Well-Known Member

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        remove the fan, especially before you put the new one back in.
         
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        • dadsbee

          dadsbee FABO Gold Member FABO Gold Member

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          I've seen guys do more damage to radiator fins by tightening a fan back on than slipping a radiator past the fan.
           
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          • Mako21

            Mako21 Active Member

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            Thanks for the quick responses. I’ll have to go get some caps for the tranny hoses so they don’t drain. Anyone know off the top of their head the diameter?
             
          • dadsbee

            dadsbee FABO Gold Member FABO Gold Member

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            As noted by another member you can also join them with a hose.. 3/8" will work. Have the hose ready, point it up into the engine compartment, remove one line and quickly slip hose over line. Having the hose UP into the engine compartment will keep it from draining while you get the other line off and then quickly swing it down and slip over that line.
             
          • 66fyssh

            66fyssh Don't Stop Believin' FABO Gold Member

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            I use a plastic sandwich bag and rubber bands on the transmission lines and radiator.
             
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            • Mako21

              Mako21 Active Member

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              Alrighty I’ll pick up a couple feet of hose.

              Its either a trip to Office Depot for rubber bands or a Napa for the hose....think I’ll go to Napa. Thanks guys.
               
            • lilfontleroy

              lilfontleroy annoyinglilLeroy FABO Gold Member

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              put some cardboard down
               
            • Mako21

              Mako21 Active Member

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              Thanks...I plan to properly flush this time. I cleaned the side of my block with simple green. This is the only bolt I found aft the oil filter. Would it be my coolant plug so I can flush the block? I’ve had it soaking for a day with PB blaster. What do I do once I open it? Angle the hose gun in and have at it?

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            • Mopar Vince

              Mopar Vince I'd rather push my Mopar than drive any Ford FABO Gold Member

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              Those petcocks drain everywhere except your pan it seems.
              I use an old plastic bottle with a hole cut in the side towards the bottom as a funnel to control where the coolant goes
              20190224_102245.jpg
               
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              • Enjoying it again

                Enjoying it again Well-Known Member

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                Mopar Vince, Like your idea of plastic bottle with a hole cut into it. Thank you.
                 
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                • SIX225

                  SIX225 Well-Known Member

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                  Just an FYI that coolant is very poisonous to pets. These days I believe a bittering agent is added to it so they dont drink it, but be careful leaving buckets and puddles around.
                   
                • RedFish

                  RedFish Well-Known Member

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                  Cardboard placed between radiator and fan on the way out and going back in Two wrenches at cooler line fittings. Be sure to blow out that fluid cooler before reinstalling. Some radiator shops dont blow their nasty water out of them.
                   
                • Mako21

                  Mako21 Active Member

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                  This sight is invaluable. I pulled the radiator out today using everyone’s advice and think I did a pretty good job. This is the first time of undertaken a project like this and it’s really fun. Thank you.
                  Here’s a picture of the radiator. I’m taking it to a very good, local, reputable shop tomorrow to have it rebuilt.

                  Now on a side note I did mess up because while trying to unscrew the compression fitting line from the transmission cooler, it twisted and broke off on me. I found plenty of sight advertising 1969-1975 trans cooler lines available. But will they fit a 1976?

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                • RedFish

                  RedFish Well-Known Member

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                  Part stores have the 5/16 tubing in various lengths. It has a flare on both ends so cut halves gets you 2 shots at bending what you need to replace just a portion of the original line and make it up with a brass compression union. Threading the entire pre bent line into place isn't always easy.
                   
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                  • Mako21

                    Mako21 Active Member

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                    I’ll head to a hardware store tomorrow and look for that. In the mean time I’m going to start pulling the belts off and get the water pump off to replace. I purchased an AC Delco Gold line water pump and felpro gasket. Hope it works out well!
                     
                  • volaredon

                    volaredon Well-Known Member

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                    not a hardware store, an auto parts store.
                     
                  • RedFish

                    RedFish Well-Known Member

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                    I got the line at Advance Auto. I didn't ask if they had the brass compression union. Got it at Lowes
                     
                  • Mako21

                    Mako21 Active Member

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                    Well I got the radiator back today with a complete recore/rebuild from the shop. Added more fins for heat displacement too. Can’t wait to install it and get the car running. Too bad I won’t be able to get to the car till next week....

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                    • pishta

                      pishta I know I'm right....

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                      looks great! What was the cost...?
                       
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                      • 66fyssh

                        66fyssh Don't Stop Believin' FABO Gold Member

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                        I agree. Looks great. If you don't want to give an exact cost, give us a range.

                        When I lived in Virginia Beach, I took my 66 radiator to a shop. He tanked it, but said he couldn't get a core to fit it :BangHead:. I didn't argue and he cleaned it up for me.
                         
                      • Mako21

                        Mako21 Active Member

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                        I had it completed at Robert Radiators in Miami, Fl. Cost was $325. The other option was $285, but for 40 bucks more he increased the fins to give it around "30%" better cooling capacity. I opted for the upgrade.
                         
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                        • Demonracer

                          Demonracer 71 Demon 00 Ram 16 Chrysler 300S 05 Caravan FABO Gold Member

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                          Good choice, as mentioned don't forget to blow the transmission cooler so the isn't any water in it. And while you are at it, replace the upper & lower radiator hoses & heater hoses for peace of mind.
                           
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