I had some questions in a different thread but got no response. Quote: Originally Posted by Junkman Depends on which year it is.For a factory a/c installation, will require some holes being cut into the passenger side of the firewall. Removal of the passenger fender would make the job easier.The earlier cars will require an oblong hole to be cut into each end of the dashboard metal. The newer ones ('68-'72) would need a dashpad replacement(one with a/c vents) and a dash speedo bezel modification. Not to mention the a/c wire harness,engine brackets,pulleys,compressor,a/c hoses,condensor,fuel pump with a return line,fuel return line along frame to gas tank,fuel pickup/sending unit equipped for fuel return, on some cars- a glove box for a/c dash,a/c style interior kick panels and block off plate(driver side),fresh air vent ducting(pass. side),behind dash ducting,a/c-heat switch panel,and other things.All from a suitable donor car,prefferably a 4dr. I am doing a ground up restoration of a 68 GS convertable. I am swiching it from Non A/C to A/C. I have some questions for you. 1. What bezel mods need to be done? 2. Why do you need a fuel return line? I have not bought any of the fuel system yet so it is not a problem. I was just woundering. 3. Where can I get a vacuume diagram. I had a 68 and a 69 partd car. They appear to be diffrent. One has 3 vacuume lines one has 5. I am a little confused. 4. Where could I find a diagram of the enire system with the names and locations of all of the components. Thanks,
From what I've seen here, 68's are one year setup. there are several 68's with a/c in local yard, and he's cheap for me because I help the old man out from time to time. Most cars have been sitting back there for over 20+ years, so keep that in mind. be glad to help with parts if no luck else here closer can/will. pm/email if need.
Yes,if you are doing a '68,you will want to use all the '68 parts.Especially the dash switch panel,vacuum lines,heater valve,etc. The '68 system is all by itself. The '69 setup is more like the 70-72 system. Hard parts like the compressoor,lines,a/c box would be the same as the '69. Best to get it all from a complete '68 donor car.
I do not know. I had read a post by junkman, in it he said one of the things you needed to do on a conversion was to run a fuel pump with a return line along the frame to gas tank, as well as a fuel pickup sending unit equipped for fuel return. I was hoping he could shed some light on this.
The fuel return is for the extra capacity fuel pump that is used on a/c equipped cars to prevent vaporlock. You could just use your original fuel system and be all right. You may not even experience vapor lock,except for under the hottest conditions.You may not even have any problems then.
