Air Conditioning Installation

[92vert240]

I need to install factory air conditioning into my 1990 240sx. It has an s14 SR-20 in it. I threw out the compressor like a jackass so i'll need another one of them too.

What im looking for is everything i'll need, some diagrams, parts lists, but most importantly wiring diagrams and how to wire it all back in broken down very simply. Im sure there is something on here u just cannot find it.

Also was wondering if i could just install everything and have an on off switch for the compressor.

Please any help would be great! Thanks!

[moso]

your best bet is to source a stock pump for the sr and all the stock lines and equipment for the body. get the lines that match the pump(or at least the aluminum line ends) and then cut the lines hand have the proper ends welded on to match the pump. you should be able to get all the parts for the 90 240 body in the jy. the only real cost will be the pump and mounts, you can probably get the pump with the line ends if you buy them from a engine dealer. then swap the whole kit over to R-134a!

[92vert240]

your best bet is to source a stock pump for the sr and all the stock lines and equipment for the body. get the lines that match the pump(or at least the aluminum line ends) and then cut the lines hand have the proper ends welded on to match the pump. you should be able to get all the parts for the 90 240 body in the jy. the only real cost will be the pump and mounts, you can probably get the pump with the line ends if you buy them from a engine dealer. then swap the whole kit over to R-134a!

I read here that you can use the stock AC compressor with some modification but not sure if thats with the S13 SR20 only. Check out this link how-to-ac-install-on-s14-sr20-t440273.html

I am probably going to find a cheep 240 with working AC that way i have everything and also all electrical connections and plugs. I can also rout where everything picks up signals and what not. Then just part the rest of the car out or drive it as a daily.

What is involved in converting to R-134A? I am definitely going to do that just do not know whats involved. I think its just seals and oil. Help any way you can! Thanks!

[moso]

Ha, I almost forgot about the wiring, that post definitely covers it. Modifying the pump you can do at your own risk, the pump generates alot of resistance so there is a good amount of torque going to that pulley, not so sure I would want to shim the pulley out. either way, r-134a is the way to go for refrigerant. If you dont have access to a powerful vacuum pump than just take it to have it filled when your done. If you do, use a r134a swap kit for the proper port adapters, pull a mean vacuum on the system and give it an oil charge then fill with refrigerant until its at the proper pressure.

[92vert240]

Ha, I almost forgot about the wiring, that post definitely covers it. Modifying the pump you can do at your own risk, the pump generates alot of resistance so there is a good amount of torque going to that pulley, not so sure I would want to shim the pulley out. either way, r-134a is the way to go for refrigerant. If you dont have access to a powerful vacuum pump than just take it to have it filled when your done. If you do, use a r134a swap kit for the proper port adapters, pull a mean vacuum on the system and give it an oil charge then fill with refrigerant until its at the proper pressure.

I agree with you on the pump issue. I tend to notice alot of "solutions" on forums are quick fixes that will get you across the bridge but may leave you stuck on the other side. As an aircraft mechanic i like to do it right. I will get an S14 SR set up. Like an idiot i threw EVERYTHING out when i got the clip

Where do i find a 134 kit? And i wont be charging this myself. As Clint Eastwood said, "A man knows his limits". Is it just o-rings that need to change? May have to mix and match kits.

Thanks For the Help!!!!!

P.S i sold my car my 65 year old retired Air Force Colonel owns it now and wants AC lol.

[moso]

you can get an o-ring kit online from just about anywhere and i suggest them no matter what refrigerant you use. if you decide to run an sr pump i seriously suggest having lines made to connect the pump to the stock 240 lines, it will help you in sourcing parts later if you need to replace a condenser or evaporator. Just about any parts dealer will have a r134a retrofit kit or your local a/c shop.

[compactfean]

I have an sr ac pump with manifold lines....

[92vert240]

I have an sr ac pump with manifold lines....

From an S14 SR? Price? 516-356-6238 text or call.

Thanks!