coOverwatch Posted June 13, 2017 Share Posted June 13, 2017 So the build continues on the 64 Riviera. been working on the body and decided to jump into cleaning out the heater/AC stuff. when I pulled the Blower motor and heater cover I found another source of water leaking into the interior. took the next two days to pull everything out just to get at the Heater Core. Good thing the windshield was out or this would have been real fun. seems the engine block was not the only thing that froze. Does anyone make a replacement heater core????? I have a parts car that I can see if that Core is any better. Problem for me is the car was in the Flood a few years ago and is filled with this layer of fine silt. Link to comment Share on other sites More sharing options...
Seafoam65 Posted June 13, 2017 Share Posted June 13, 2017 (edited) The replacement cores that people sell don't fit properly. The consensus on the forum has been that the best approach is to send out your old core to be re-cored. With a re-core, the old tanks are reused and a new core is soldered to them. Edited June 13, 2017 by Seafoam65 (see edit history) Link to comment Share on other sites More sharing options...
coOverwatch Posted June 13, 2017 Author Share Posted June 13, 2017 do you have any shop recommendations? or just start calling Radiator shops. my concern was if this could be rebuilt. has a pretty good bulge to it. Link to comment Share on other sites More sharing options...
Seafoam65 Posted June 13, 2017 Share Posted June 13, 2017 The bulge is in the core.....that part would be completely replaced. A lot of radiator shops offer recoring of heater cores. I would call around and see if you can get it done locally. If not, there are people who advertise in Hemmings Motor News who offer this service. Link to comment Share on other sites More sharing options...
coOverwatch Posted June 13, 2017 Author Share Posted June 13, 2017 thanks, found a shop in town. only an hours drive from me. now to look at the AC. anyone have any suggestions on what should be done to it to handle the modern coolant? Link to comment Share on other sites More sharing options...
Seafoam65 Posted June 13, 2017 Share Posted June 13, 2017 If you convert it to R134 A you would need to flush out all the components and add oil for R134A to the system. The old oil for R12 will not work with R134A. You would also need to install new service ports for R134A. I am not sure if your suction throttling valve will work correctly with R134A refrigerant. Perhaps someone else can chime in on this. I can tell you for sure that your system will cool better with the old R12 refrigerant if you are using the old fashioned condensor that came in your car. Your old condensor does not have enough tubes to work real well with R134A. My car had been converted when I bought it and I converted it back to R12 and it cools a lot better now. My car had a suction throttling valve eliminator kit installed on it when I bought it and it still has it. My car now has a cycling clutch setup on it with no suction throttling valve. Link to comment Share on other sites More sharing options...
coOverwatch Posted June 14, 2017 Author Share Posted June 14, 2017 it is all stock as far as I know. I will need the Condenser (part that sits behind the radiator) as it is corroded. the system has been exposed for the last year. lines disassembled from the compressor for engine removal. do they still make the R12 refrigerant? someone told me that is no longer available, however I have not checked. Link to comment Share on other sites More sharing options...
Seafoam65 Posted June 14, 2017 Share Posted June 14, 2017 It is out there still but it is very expensive. I bought a 30 pounder a couple of years ago from a friend who didn't need it any more for 250.00 which was a steal. Best source is try to find a fellow hobbyist looking to get rid of a 30 pounder. If you buy it online you have to have an ASE A/C certification. People online are asking 50-75.00 a can for the R12. Link to comment Share on other sites More sharing options...
coOverwatch Posted June 21, 2017 Author Share Posted June 21, 2017 thanks for the info Seafoam. Still waiting on the rebuild of the core. the one that was sent to the shop was no good and they had another on the way. Link to comment Share on other sites More sharing options...
ronnie27 Posted June 21, 2017 Share Posted June 21, 2017 coOverwatch email me if you want at ronnieg27@live.com. I have a complete working system you can have very reasonably if you want. Link to comment Share on other sites More sharing options...
Bill Stoneberg Posted June 22, 2017 Share Posted June 22, 2017 (edited) Or you can do what I and others have done which it convert to Vintage Air. They make all the parts to make the Riviera cold enough to hang meat in it. And I live in Texas. Check out Don's thread that I added on to below. I tried to fix my A/C and spent lots more then if I would have just gone with Vintage Air in the first place. Edited June 22, 2017 by Bill Stoneberg (see edit history) Link to comment Share on other sites More sharing options...
coOverwatch Posted June 24, 2017 Author Share Posted June 24, 2017 thanks Bill. I just looked through the post. think I might look into this. have to find a dealer in my area. Just got the heater core back and will need to decide on how to proceed Link to comment Share on other sites More sharing options...
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