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72 heater core w/ac replacement

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72GTS351CJ View Drop Down
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    Posted: 11-January-2021 at 1:24AM
Hi guys . I knew this day was coming.  It was probably discussed before.  I did a search but couldn't find an exact how to. Does anybody have any tricks to doing this enjoyable job? And while I'm there I might as well change the evap coil. -Rick- 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 11-January-2021 at 4:56AM
no real tricks... just locate and remove the fan housing unit (a nut up by the cowl) and a couple at the bottom. then a few lag size screws and nuts some inside some outside. the hoses. and cable and vac hoses. and  loosen the duct work where it attaches to the box so the box can be removed...
JOHN
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 11-January-2021 at 6:10AM
to make the job easy, remove the outer & inner fender, pull the engine and dash

if you're going to change the blower motor, heater core and evap core you might as well go with an aftermarket unit?
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72GTS351CJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72GTS351CJ Quote  Post ReplyReply Direct Link To This Post Posted: 11-January-2021 at 6:13AM
Lol. Now I'm not sure if you're joking about the aftermarket unit. ....Am I removing the dash pad or there is no reason to
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 11-January-2021 at 8:50AM
i meant the whole dash, to make it easy.

you can work from under the dash and through the glove box hole with the liner out,
i'd pull the dash pad just to be able to see what you're doing.

but really, you're replacing the fan and 2 cores why not just pitch the PITA engine bay plenum and put in a Vintage Air box?

do you think the evap core really needs to be swapped?


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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72GTS351CJ Quote  Post ReplyReply Direct Link To This Post Posted: 11-January-2021 at 9:59AM
If the evap coil makes it a game changer than its just fine. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72GTS351CJ Quote  Post ReplyReply Direct Link To This Post Posted: 11-January-2021 at 11:57AM
Just looked at the manual.  Makes more scents when you see pics.  Basically split the air box in the car to access the h.c.  Actually doesn't look that hard. I'll remove the pass seat probably easier that way . Thanks cj and rock
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rockatansky Quote  Post ReplyReply Direct Link To This Post Posted: 11-January-2021 at 2:25PM
like Johnny said, there are some that you need to get from the engine side of the firewall

and some that you get from the interior. it sucks
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 11-January-2021 at 3:17PM
iirc the inside ones are down along the bottom of the box by the tranny hump and the rest outside worst is the one straight up to the cowl, not bad if you know where it isWink remove the fan box then the rest aren't too bad, you don't need to remove the outer a/c box unless you change the evap core.
 worst part is the peg clips holding the vent tubes to the box inside, they pop out but getting to a couple are a bit of a pain, just remove only the part of the vent system needed to get the box offWink
JOHN
74 GRAN TORINO S&H CLONE
74 VETTE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U
68 MUSTANG FB CONVERSION
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72GTS351CJ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72GTS351CJ Quote  Post ReplyReply Direct Link To This Post Posted: 12-January-2021 at 1:37AM
Thanks for all the info.  I will advise the family not to enter the garage while I'm doing this
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 12-January-2021 at 8:34AM
Plug your ears my dear, that's the HBO I'm listening to.
Don
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72GTS351CJ Quote  Post ReplyReply Direct Link To This Post Posted: 12-January-2021 at 9:06AM
Don't worry I'll get the air box out. It might be in 3 pieces tho
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72 RS 351 Quote  Post ReplyReply Direct Link To This Post Posted: 12-January-2021 at 9:20AM
I'm sure you will get it done with little trouble. I don't remember how much it was to get the dashes out of my two when I swapped the interiors, I don't think it was that bad or I'd recall more. I have messed with some 90's dashes that were no fun, they had more wiring and more little bolts holding it all in.

Do wear some gloves, they will help with some sharp edges that will scratch your hands along the way.
Don
73 Ranchero GT 351C-4V 3.70 gears, to build a keeper
73 Ranchero Sport "72 front end", floor shift/console, planning EFI 351-3V &4R70W
92 Lincoln Mark VII SE, OBDII 347/4R70W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote handsofstone Quote  Post ReplyReply Direct Link To This Post Posted: 13-January-2021 at 8:20AM
Please take pics along the way. I have to do the both of them in my car.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 72GTS351CJ Quote  Post ReplyReply Direct Link To This Post Posted: 13-January-2021 at 11:04PM
will do
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