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72 GTS Done, Done & Done......40 years later!

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californiajohnny View Drop Down
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Location: winlock, wa
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 09-June-2017 at 4:51PM
Clap nice work!
JOHN
74 GRAN TORINO S&H CLONE
74 CORVETTE COUPE 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
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M Casey Stock View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote M Casey Stock Quote  Post ReplyReply Direct Link To This Post Posted: 12-June-2017 at 7:42AM
Looks great! Nice car.Thumbs Up
1975 Gran Torino, Copperhead

http://forum.grantorinosport.org/75-gran-torino-soft-restoration-copper-head_topic15137_post169060.html?KW=#169060
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fordismyboss View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fordismyboss Quote  Post ReplyReply Direct Link To This Post Posted: 12-July-2017 at 12:26PM
Update: Restore Air Conditioning system from R12 to 134a.

Started with original 351c(now 429CJ) A/C system with no apparent flaws, just a missing A/C belt and disconnected compressor clutch.
New "YORK" compressor from Classic Air in Florida, and new expansion valve, dryer, and O-rings from Old Air in Texas.
Cleaned all components and hoses I did not replace with denatured alcohol and compressed air.
Restored evaporator housing with new sealing foam and Thermo Guard FR. When I restored the car, I insulated the ceiling, doors, firewall, behind the back seat, and floor.
Cleaned and repainted the accumulator.
Rebuilt idler pulleys with new bearings.
Used an original compressor clutch from a 1971 Mercury Marquis with a 429.  
Repaired the corroded inlet coupling on the condenser by having a good coupling off a donor condenser ting welded on.  
After cleaning the original components, there was still a bit of mineral oil left in the system and learning that Ester oil is compatible with mineral oil, I drained the PAG oil out of the new compressor and installed the identical amount of ester oil, about 13.5 ounces. 
Cleaned all couplings/threads with scotch brite and ester oil, hand tightened everything and then just snugged up couplings lightly with a wrench so as not to crush the new O-rings. 

Had a local A/C expert install 134a charge couplings on the hi and low sides and charge the system.
No leaks found and 45 degrees F at the vents. Very surprised at how well it cools with 134a.

Knew nothing about A/C systems and found much help and info on this board, at the component vendors, and on-line.  






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californiajohnny View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote californiajohnny Quote  Post ReplyReply Direct Link To This Post Posted: 12-July-2017 at 6:01PM
looks great! well doneClap
JOHN
74 GRAN TORINO S&H CLONE
74 CORVETTE COUPE 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
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