Paul King
MrPJK
Hi ,My heater core started leaking tonight,it is a 1966 Dodge Dart with A/C ,has anyone changed one.Any advice would be great.Thanks
Did your car have A/C and what all did you have to removeI rebuilt my whole air box last winter in my 71 Swinger. Wasn't toooo horrible but I would recommend buying a rebuild kit from Detroit Muscle. It was very complete and when you have the air box out it would be a good time to replace the wiper pivot seals if they have any sort of age on them.
Factory AC car but the AC is long gone. So if you still have AC hooked up you’ll have to remove the refrigerant and unhook the lines going to the air box through the fire wall.Did your car have A/C and what all did you have to remove
ThanksFactory AC car but the AC is long gone. So if you still have AC hooked up you’ll have to remove the refrigerant and unhook the lines going to the air box through the fire wall.
So remove evap lines, remove heater core lines, remove the nuts on the firewall inside the engine bay, loosen the j bolts that hold the box to the cowl (inside the fresh air box....there are other odds and ends but that’s the main things.
There are free service manuals online and while I didn’t follow it myself it wouldn’t hurt to have it up if you get stuck.
Thinking about it some more you MIGHT be able to unbolt the evap box from the heater side of the air box. Now that I think about it I think that’s how I removed my air box. It made it easier to get everything out.
What would be a good one to buyAlso a side note watch what heater core you buy some do not fit right.
Thanks 66 ,great picks,My A/C is all hooked up ,wondering how difficult it,s going to be to changeIt's good to remove the front seat also. You need all the room you can get!! Oh, and remove the glovebox to gain access to the cables and electrical plug. The air boxes have a J-hook. You can see the nut when you open the vent door.
Here's a couple of pics from when I did mine (factory a/c but not connected). See how many leaves were in the box!!!
I also bought a gasket kit from DMT. It's the best out there. Be careful prying off the clips that hold the two halves together. Just take your time and like others said, take lots of pictures.
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I don’t know about 66 but the 67-71 are separate boxes for the ac and heater sections and I think the heater portion can be removed separately.
Get yours repaired, had three come here for a 64 non ac and only one that fit right was the original. Either to big or the in and out did not line up. Anyone?
It's good to remove the front seat also. You need all the room you can get!! Oh, and remove the glovebox to gain access to the cables and electrical plug. The air boxes have a J-hook. You can see the nut when you open the vent door.
Here's a couple of pics from when I did mine (factory a/c but not connected). See how many leaves were in the box!!!
I also bought a gasket kit from DMT. It's the best out there. Be careful prying off the clips that hold the two halves together. Just take your time and like others said, take lots of pictures.
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Hi 66,i bought the rebuild kit from DMT and have my box back together,i need a bit of advice and Jim is so busy dont want to bother him.There are 2 cowl seals .i have the top one on ,but the other is to large,does it go to the other opening were the blower goes and does it need trimmed to fit or does it even need one at the fire wall .ThanksIt's good to remove the front seat also. You need all the room you can get!! Oh, and remove the glovebox to gain access to the cables and electrical plug. The air boxes have a J-hook. You can see the nut when you open the vent door.
Here's a couple of pics from when I did mine (factory a/c but not connected). See how many leaves were in the box!!!
I also bought a gasket kit from DMT. It's the best out there. Be careful prying off the clips that hold the two halves together. Just take your time and like others said, take lots of pictures.
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66 Do you remember if the same gasket is used for the cowl and the fire wall .ThanksI think...my memory isn't the best....that I used it for the driver's side fresh air box to cowl. Seems like I may have needed to cut it and make it smaller so it would fit.
Let me think in it!!!
They would be great ,thanks.im getting older also ,cant remember if there was a gasket at the fire wall or not .LOLI have the heater out of my '64 Dart. If they are the same parts, I could post some pics,
Mine had a foam gasket for each fresh air - to air cowl opening.They would be great ,thanks.im getting older also ,cant remember if there was a gasket at the fire wall or not .LOL
^Thank you so much great help .Mine had a foam gasket for each fresh air - to air cowl opening.
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And then one foam ring that fit inside the firewall mounting plate in the engine compartment.
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I took picks of my heater box before taking it apart too because I was scared I'd never get it back together again. I'm happy to post whatever I can to help you get back together.
My Pleasure. There is also a flat rubber gasket that goes between the engine side of the firewall and the metal plate the foam rubber doughnut fits into. And the sleeves go over the firewall studs on the passenger side (I think). You can zoom in on my pre-engine overhaul pic to see the plate and nuts holding it all together.^Thank you so much great help .