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the dreaded heater core
#1
Hello folks, my 73 fastback that came with factory air conditioning has a severely leaking heater core. I already picked up new one, any advice or tips on doing the teardown and install will be greatly apreciated. Thanks in advance.

351w - Ford racing GT40X 178 cc aluminum heads - Ford racing(crane) 1.7 roller rockers - Comp Cams 280H magnum cam .544" / .544" lift - ARP fasteners - hedman longtubes - magnaflow exhaust with X pipe -  MSD digital 6al box - MSD coil - optima red top battery - tuff stuff 140 amp alternator - ported weiand stealth intake  - edelbrock 1406 600 carb  - edelbrock rpm fuel pump - march pullies and brackets - Be cool fan controller - derale electric fan - FMX trans - motive 3.50 gears - traction lok - competition engineering subframe connectors - lakewood traction bars.                                            










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#2
Step 1. Take out the passenger seat. It makes all the other steps MUCH easier.

[Image: 386_07_10_13_5_58_42.jpeg]
My Mustangs:
71 M-code Mach 1, Medium Blue/White Sport, 4R70W, 3L50, Factory Ram Air.
72 Q-code Mach 1, Pewter/Black Sport, 4-spd, 3L25.
65 Convertible, Britney Blue/White/White, more modified than original.
05 Convertible, Legend Lime/Tan/Tan, future classic??
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#3
Amen to that. Did mine while the entire interior was out just so I hopefully won't have to attempt with it in. Tongue

[Image: 2rr7aiv.png]

Just cruising along minding our own business when BAM!!! The LAWS show up.
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#4
I've read that, will definately being doing step 1.

351w - Ford racing GT40X 178 cc aluminum heads - Ford racing(crane) 1.7 roller rockers - Comp Cams 280H magnum cam .544" / .544" lift - ARP fasteners - hedman longtubes - magnaflow exhaust with X pipe -  MSD digital 6al box - MSD coil - optima red top battery - tuff stuff 140 amp alternator - ported weiand stealth intake  - edelbrock 1406 600 carb  - edelbrock rpm fuel pump - march pullies and brackets - Be cool fan controller - derale electric fan - FMX trans - motive 3.50 gears - traction lok - competition engineering subframe connectors - lakewood traction bars.                                            










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#5
The rest is pretty strait up and down. Just be carefull of how you handle the box. Some can be pretty brittle. I can send you the service manual how to if you need it.

[Image: 2rr7aiv.png]

Just cruising along minding our own business when BAM!!! The LAWS show up.
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#6
If not in a huge hurry, get one of the heater/ac box gasket sets so you can replace all the dried up seals while you have it apart.

I just received mine from CJ Pony from back order from their Christmas sale. Going to rebuild mine in a week or so.
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#7
Not in a huge hurry. I had to wait on a part from them for 2 months before that was on back order from Scott Drake. Mark that would be cool if you don't mind sending that. Thanks everyone.

351w - Ford racing GT40X 178 cc aluminum heads - Ford racing(crane) 1.7 roller rockers - Comp Cams 280H magnum cam .544" / .544" lift - ARP fasteners - hedman longtubes - magnaflow exhaust with X pipe -  MSD digital 6al box - MSD coil - optima red top battery - tuff stuff 140 amp alternator - ported weiand stealth intake  - edelbrock 1406 600 carb  - edelbrock rpm fuel pump - march pullies and brackets - Be cool fan controller - derale electric fan - FMX trans - motive 3.50 gears - traction lok - competition engineering subframe connectors - lakewood traction bars.                                            










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#8
Mikes73;108454 Wrote:Not in a huge hurry. I had to wait on a part from them for 2 months before that was on back order from Scott Drake. Mark that would be cool if you don't mind sending that. Thanks everyone.

LOL same ole story same ole song and dance..................been there done that on the wait
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#9
If you have a center console, you may wanna remove that too other wise you may not be able to tilt the whole heater core assembly enough to get it out. I had to when I redid mine.
Other than that it is a matter of patience, which I have very little of, unfortunately.
But I was able to pull it off so it can't be that hard. ;-)

[Image: 1z21rv4.png]

Mike

"If I were you...... I´d rather be me."  Tongue

Check out my video:
http://www.7173mustangs.com/thread-my-mustang-in-action

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#10
Might want to take the kick panel off as well. I scratched mine during removal.

73 conv. 460, D0VE large valve heads, Performer RPM manifold, Voodoo 227/233 cam, Holley 950 HP carb, C6 trans, 3.25 trak-loc.
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