Where does my AC drain come out?
- Thread starter furious70
- Start date
Need more information. Year and model of car and standard or ATC?
Dave
Dave
Clover
Well-Known Member
Likely two drains on firewall, near trans tunnel on each side.
Here is a photo of the '70 drains, click on PDF below. Most of the time leakage into the passenger area is either a bad heater core or the cover gaskets that have deteriorated to cause the leak. Either way you are probably looking at having to pull the Heater/AC box to repair the leak as the drains rarely get plugged. There are usually two drains on the bottom of the cover that you can see if you have a mirror. Sorry about the poor quality of the photo as it does not reproduce well from the FSM.
Dave
Dave
The two drains at the bottom of the trough are half moon shaped where they go thru the cover gasket, this allows water to drain out, If they are plugged you can remove the cover under the hood without having to pull the whole heater/AC box although it is a PIA.
Dave
I have this issue of passenger-side moisture, although I do have drainage from the drain closest to the tranny. So....I'm guessing that it's time to pull it all apart, clean it all up, blow any crud out of the fins (I KNOW there's crud in there) and use the excellent Detroit Muscle box seal kit to make it tight.
I have kit already, and it really is excellent.
I have kit already, and it really is excellent.
Mopar - Heater Box Rebuild Gasket Sets - C Body 69-73 Heater Box - Detroit Muscle Technologies, LLC
Mopar C Body 69-73 Underdash Shoddy Pad Sound Insulation
And I also have the newly released splash kit, which is absolutely, entirely, profoundly EXCELLENT. The owner, Jim Filmore, told me it took him a few years to acquire good and proper examples of all the various pieces (from guys like us) to reproduce for this splash kit, and shows.
Mopar C Body 1969 69 1970 70 1971 71 Chrysler MEGA Splash Shield Set
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Clover
Well-Known Member
It’s great to see some of the C body stuff getting reproduced! Our lovely Cs have been neglected for far too long!
I think we may owe it--in a significant part--to members here who have been aficionados of the big cars for a long time. It is really surprising to see something so "C" specific as the splash skirt kit, but rising demand had made it worth it for some specialty manufacturers and vendors. Will AMD start making sheet metal? We shall see.
When I began to restore my 71 Cuda in 1988, YearOne had the trunk gasket, and somebody else had some emblems. Other than that....junkyard scrounging. Now, of course, you can build an E-Bod with nothing to start with other than a few pieces of rusty metal with a VIN on it. I doubt the C-Bods will reach that status of reproduction parts, probably because there's no Hemi option (for the most part) to stir the imagination.
75LandYacht
Yank Tank
And the kits STOPS at 73. 
Maybe someday someone will make stuff for our 74-78’s. Maybe....
Maybe someday someone will make stuff for our 74-78’s. Maybe.... Does it have the gasket to seal to the firewall? I might just not be seeing it.
Is there a source for a larger capacity blower motor? I run the high side of my blower motor switch via relay so it gets full juice from electrical service bus, but the output still isn't great. Maybe my seals are leaking it everywhere, maybe the motor is gummed up? If I'm going to pull this out this winter I'd want to address that as well.
Did you look at the pic on their website? As I understand it...because I haven't done it yet, is that everything is there. I think the gasket you asked about is the one at the top of the DMuscle website picture. It's the one that looks like a whale swimming to the left. The blower gasket is inside the "tail".
I strongly suspect that our 48 year old seals are leaking everywhere, particularly the big spongy one from the box to the duct distribution box, and similar suspicion that the AC and heater cores are stuffed with cottonwood fuzz, assorted crud....and mouse fur.
I strongly suspect that our 48 year old seals are leaking everywhere, particularly the big spongy one from the box to the duct distribution box, and similar suspicion that the AC and heater cores are stuffed with cottonwood fuzz, assorted crud....and mouse fur.
CanCritter
Senior Member
l touched my foam seals only to see them crumble like 1000 year old dust...are a few gaps ect that lm gona sort out as well...want that ac to blow my *** freeze dried into the back seat when lm done...just sayin
Mine crumbled like 1001 year old dust!
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