Re: Heater core is leaking! E body with air !!!! Help!!!!!
[Re: bri440]
#1665391
08/30/14 11:23 AM
08/30/14 11:23 AM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
I've got a 71 Challenger with factory AC. I did not need to remove the dash to pull the Heater/AC box. Unbolt it from the firewall, disconnect the hoses, pull the vent hoses, and remove the fan. The unit slips out underneath the dash. It's tight, but I could wiggle it out.
Good Luck.
That's right, you must remove the plastic trim across the bottom of the dash that AC cars have also. It not too bad to do. Might as well get some gaskets from DMT because they will need to be replaced from age.
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Re: Heater core is leaking! E body with air !!!! Help!!!!!
[Re: Challenger 1]
#1665392
08/30/14 11:32 AM
08/30/14 11:32 AM
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Joined: Aug 2006
Posts: 2,505 God's Country Maryland
GODSCOUNTRY340
master
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master
Joined: Aug 2006
Posts: 2,505
God's Country Maryland
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On my '70 440 'Cuda with air I removed the box without removing the dash. Take it out the bottom as suggested. Tight fit but it will come out.
I love the smell of Deer guts in the morning, it smells like... VICTORY!
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Re: Heater core is leaking! E body with air !!!! Help!!!!!
[Re: GODSCOUNTRY340]
#1665393
08/30/14 04:11 PM
08/30/14 04:11 PM
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Joined: Jan 2008
Posts: 3,886 Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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It might not be a bad idea to take out the seat to give your self a little more room to work.
I have mechanical Aptitude. I can screw up anything.
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Re: Heater core is leaking! E body with air !!!! Help!!!!!
[Re: bboogieart]
#1665395
08/30/14 04:23 PM
08/30/14 04:23 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
It might not be a bad idea to take out the seat to give your self a little more room to work.
Good idea...also might have to take the console out if it has one I believe?
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Re: Heater core is leaking! E body with air !!!! Help!!!!!
[Re: RSNOMO]
#1665396
08/30/14 04:30 PM
08/30/14 04:30 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Pull the dash...
Then you can put it on the bench and work on it without imitating a contortionist...
Makes life a lot easier...
Definitely if your replacing the dash pad(I've done it both ways) But he's only needs to get to the heater/ac box, then you don't need to do the whole dash.
I think you can remove just the inner portion of the heater box and not even remove it from the firewall and get to it?
But at this age it's gonna need door gaskets at the least to work efficiently.
Pulling the whole dash is tons more work than necessary for a heater core replacement imo.
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Re: Heater core is leaking! E body with air !!!! Help!!!!!
[Re: ccdave]
#1665399
08/31/14 02:42 AM
08/31/14 02:42 AM
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Joined: Jun 2008
Posts: 1,822 Colorado
denfireguy
top fuel
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top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
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Your next problem is getting a heater core. I was going to replace mine but wound up having the old one boiled out and pressure tested as the replacement cores are not nearly as substantial as the originals. I was worried that it would metal fatigue as the mount was not as mechanically sound as it should be, IMO. As mentioned before, get the DMT kit. It was easy to install and replaced a lot of foam powder that was all that was left from the original heater. Craig
2014 Ram 1500 Laramie, 73 Cuda Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango Only previous Non-Mopar: Schwinn Tornado
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Re: Heater core is leaking! E body with air !!!! Help!!!!!
[Re: denfireguy]
#1665400
08/31/14 01:54 PM
08/31/14 01:54 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Your next problem is getting a heater core. I was going to replace mine but wound up having the old one boiled out and pressure tested as the replacement cores are not nearly as substantial as the originals. I was worried that it would metal fatigue as the mount was not as mechanically sound as it should be, IMO. As mentioned before, get the DMT kit. It was easy to install and replaced a lot of foam powder that was all that was left from the original heater. Craig
Back in 2005 Car Quest got me this heater core replacement. It seems to be a exact replacement fit wise and has been good since. It does have more rows of tubes, probably thinner than original? And a place called Polar Bear in Fla sold me a replacement evaporator that fit and works great. The old evaporator was slightly different, but the new was easy to fit up to the old box and freezes you out of the car.
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Re: Heater core is leaking! E body with air !!!! Help!!!!!
[Re: gtx6970]
#1665402
09/02/14 09:23 AM
09/02/14 09:23 AM
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Joined: May 2003
Posts: 8,430 St Charles MO
70Coronet500Vert
master
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master
Joined: May 2003
Posts: 8,430
St Charles MO
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One thing I do when I do heater cores is that after all gaskets internal and external are replaced, which you are going to do, is I get out a hand held vacuum pump and move all the doors to make sure they move freely. If not, I trim the new foam where necessary or replace the vacuum operators.
No matter how responsible he may seem, never give your gun to a monkey! 1970 Coronet Vert 1972 Charger 1974 Satellite Sebring Plus Sundance 2001 Ram 4x4 2002 Intrepid 2006 300C
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Re: Heater core is leaking! E body with air !!!! Help!!!!!
[Re: 70Coronet500Vert]
#1665403
09/04/14 04:35 PM
09/04/14 04:35 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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When I replaced the heater core on my Brand F ponycar I had to pull the dash. While you do not have to, you may want too consider this. I took the opportunity to tighten every bolt and nut in the dash assembly to ensure a rattle free dash.
Anyy my job was on my DD, so I had to get it done.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: Heater core is leaking! E body with air !!!! Help!!!!!
[Re: Supercuda]
#1665404
09/04/14 05:22 PM
09/04/14 05:22 PM
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Joined: Dec 2003
Posts: 10,938 Spokane Valley, WA
Big Bad Bee
I Live Here
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I Live Here
Joined: Dec 2003
Posts: 10,938
Spokane Valley, WA
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Another vote for leaving the dash intact. Disturbing a wiring harness and your gauge connections will risk adding to your nightmare unless you plan a full tilt refurbishing. DMTs gasket sets are great. Just make sure you take lots of pictures as out disassemble because the kit instructions only include pictures of correct gasket and seal locations and not reassembly instructions. Get a FSM so you can calibrate the external linkage correctly. Pull both cowl vent hoses and vacuum out your cowl. You won't believe the crap you find. Wear a mask when you disassemble. Nasty, loose fiberglass rust and ancient dirt and leaves and crap await. Consider flushing your AC core while it's out. Pour in a quart of mineral spirits. Let soak, slush it about. Blow it out with compressed air. Follow up with a quart of lacquer thinner and do the same. Blow it out real good and leave it out so all will completely evaporate before reassembly.
I’m listening.
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