No, the Condenser goes in the front of the car, preferably in front of any intercooler. It needs airflow to dump the heat collected from the car's interior. The heat exchanger that goes inside the cabin is the Evaporator. Refrigeration lines can be made up by any competent hose shop. The basic compo...

The 240Z was popular enough that there were aftermarket kits to add A/C built & sold. There were also factory A/C cars in 1973 I believe. Contact the site sponsor AC Kits and ask if the aftermarket kits are still available. AC Kits was the originator of many aftermarket kits back in those years....

Too much oil can be as big a problem as too little.

Multiple evaporators are done on millions of SUV's - and just as may mini-split HVAC units in homes.

Look here for a good "too much oil" tale
https://autoacforum.com/viewtopic.php?f=3&t=2985&hilit=fire+truck

Thanks Tim, I will update my bookmarks.

That IS a better unit. Both fittings and the adapters stay with the unit - Nice!

Side can taps ROCK. My only choice for stuff in cans. https://www.ackits.com/side-mount-can-tap-for-r-134-a-cans-17241?search=side%20can%20tap Reliable, easy to use. Works on all of the standard size cans. Ever drop a nearly full can of brake cleaner, and snap off the valve stem? Yep, works for that...

Found it. I lost the original photo with a drive failure years ago. Damn, over 15 years ago I posted that.

https://www.autoacforum.com/messageview.cfm?catid=20&threadid=12050

Last photo

It actually squeaked down to 800 a couple of times in other tests with a little more oil.

Somewhere on the old site I posted a picture of an FS6 that would pump down to 800 microns on the suction side - with the discharge open to atmosphere. I was only turning that FS6 about 250 rpm too. I would trust the York if it was in good shape. But a tired hermetic from a discarded refrigerator is...

Fast Forward to the 11 minute mark to see the water boil off.

sure shows the shortcoming of scrap refrigerator parts as vacuum pumps too!

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Contact Aeroquip and find out what the annual permissible leak rate is for that fitting. Everything leaks a little. You are losing a pound in 3 years across 8 fittings and several feet of hose. Commercial stationary comfort refrigeration is allowed to leak 10% of the total charge per year by the EPA...

An ounce or two of refrigerant should give you plenty of pressure for a leak test. No need to fully charge the system.

Manifold valve leaks and service hose / connection leaks happen occasionally. More common on rental / loaner units...