Ifitaintbroke Posted Saturday at 05:57 PM Share Posted Saturday at 05:57 PM I'm going to attempt putting the A/C back in the 250. I have all my part numbers, but a few questions. Can I reuse the condenser and evaporator? They were not leaking and the A/C was working fine when I dismantled it like an idiot. They will definitely need a good cleaning. How much oil should I put in the compressor, and what kind? And, if I do this, how the heck am I going to mount a york compressor for the on board air? Link to comment Share on other sites More sharing options...
viven44 Posted Sunday at 01:38 AM Share Posted Sunday at 01:38 AM 7 hours ago, Ifitaintbroke said: How much oil should I put in the compressor, and what kind? You need to tell more about what you took off. Is it the stock FS-6 compressor ? Should take 10oz PAG46 oil if you are going to retrofit to R134a.... Definitely read Instructions -> 1985 FSM -> A/C Systems -> FS-6 Compressor & Clutch in the link below HVAC Systems (garysgaragemahal.com) 7 hours ago, Ifitaintbroke said: And, if I do this, how the heck am I going to mount a york compressor for the on board air? York was used pre-80 if i am not mistaken... and what is onboard air ? 1 Link to comment Share on other sites More sharing options...
Ifitaintbroke Posted Sunday at 01:50 AM Author Share Posted Sunday at 01:50 AM 10 minutes ago, viven44 said: You need to tell more about what you took off. Is it the stock FS-6 compressor ? Should take 10oz PAG46 oil if you are going to retrofit to R134a.... Definitely read Instructions -> 1985 FSM -> A/C Systems -> FS-6 Compressor & Clutch in the link below HVAC Systems (garysgaragemahal.com) Yes. The FS6. 10 minutes ago, viven44 said: York was used pre-80 if i am not mistaken... and what is onboard air ? York was used a couple of years into the 80's. On board air is a vehicle mounted air compressor system, typically using said York compressor. I was going to use the FS6 for that, but decided against it. 1 Link to comment Share on other sites More sharing options...
Ifitaintbroke Posted Sunday at 05:51 PM Author Share Posted Sunday at 05:51 PM Got my hoses ordered. Now just need to determine whether to keep the condenser and evaporator or replace them. They are not cheap. Link to comment Share on other sites More sharing options...
viven44 Posted Sunday at 05:58 PM Share Posted Sunday at 05:58 PM 4 minutes ago, Ifitaintbroke said: Got my hoses ordered. Now just need to determine whether to keep the condenser and evaporator or replace them. They are not cheap. Only if they show signs of corrosion... I would think just judging from outside should be enough (outside should be worse than inside.)... and for what its worth, a bullnose evaporator and condenser has never let me down yet. I've always reused the old one..... 1 Link to comment Share on other sites More sharing options...
Ifitaintbroke Posted Sunday at 06:40 PM Author Share Posted Sunday at 06:40 PM 41 minutes ago, viven44 said: Only if they show signs of corrosion... I would think just judging from outside should be enough (outside should be worse than inside.)... and for what its worth, a bullnose evaporator and condenser has never let me down yet. I've always reused the old one..... Arright Vivek but I'm blaming you if they leak! 🫡 Link to comment Share on other sites More sharing options...
viven44 Posted Sunday at 08:57 PM Share Posted Sunday at 08:57 PM 2 hours ago, Ifitaintbroke said: Arright Vivek but I'm blaming you if they leak! 🫡 Fair enough. I assume you will pull a vacuum and ensure it holds first before you recharge! 😉 1 Link to comment Share on other sites More sharing options...
Ifitaintbroke Posted Sunday at 09:22 PM Author Share Posted Sunday at 09:22 PM 23 minutes ago, viven44 said: Fair enough. I assume you will pull a vacuum and ensure it holds first before you recharge! 😉 Certainly. Condenser is in. 2 of the 3 hoses are ordered. I'll get a drier and the o-rings, and a pressure switch sometime this week. Link to comment Share on other sites More sharing options...
viven44 Posted Sunday at 09:28 PM Share Posted Sunday at 09:28 PM 3 minutes ago, Ifitaintbroke said: Certainly. Condenser is in. 2 of the 3 hoses are ordered. I'll get a drier and the o-rings, and a pressure switch sometime this week. For whatever reason, when I evacuate the system that has been open for a while for the first time around I can only pump down to about 28.... I usually let it sit... and then come back and do it again... usually have to do 2 or 3 times to get it to pump down.... just stating that so you don't suspect any components right away. 1 Link to comment Share on other sites More sharing options...
Xr650jkallen Posted Sunday at 09:32 PM Share Posted Sunday at 09:32 PM Before installing them I would flush them with some contact cleaner or something that evaporates easily and blow them out with compressed air too. 1 Link to comment Share on other sites More sharing options...
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