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Customer Requested that old R12 A/C system is Converted it to R134a

49 thoughts on “Customer states: a/c conversion”
  1. Avataaar/Circle Created with python_avatars Geordie Magpie says:

    Hi Ray love your humour in this video, Where is your garage location so I can look it up on google map. Its OK your too far for me to stalk you haha Washington (UK).

  2. Avataaar/Circle Created with python_avatars Casey Powell says:

    So???????wtf

  3. Avataaar/Circle Created with python_avatars Don's Junkmail says:

    That is a "low" side port.
    and, click's better than snap.

  4. Avataaar/Circle Created with python_avatars brendan coffey says:

    When I converted my old Rover 1992 from R12 I put in R409 that was two years ago and still working

  5. Avataaar/Circle Created with python_avatars Tony Gingrich says:

    Those 3 pedals are from a time when most men still had 3 legs.

  6. Avataaar/Circle Created with python_avatars jackhouston357 says:

    yep, I took my 1967 Fairlane to get oil change, had to drive it in the shop, nobody there could drive it! Think they were scared when it started, 390 350hp

  7. Avataaar/Circle Created with python_avatars Klaus H. says:

    Ray:
    Do you not have to also change the compressor Oil ??? You did not say or do.
    THX
    Klaus

  8. Avataaar/Circle Created with python_avatars Donald Branscom says:

    I made a mistake! One notch each face of the nut is grade 2 and two notches on each face is grade 8.
    Sorry Rainman.

  9. Avataaar/Circle Created with python_avatars Mike Hupp says:

    Some times you just need to camera down use 2 hand s

  10. Avataaar/Circle Created with python_avatars Mike Hupp says:

    Why didnt you clean the threads plus use rachet wrench ?

  11. Avataaar/Circle Created with python_avatars Moehre040 says:

    the only thing missing about that joke about "manual" cars would be something along the lines of "here's something i recognize" -> proceeds to put it in reverse

  12. Avataaar/Circle Created with python_avatars Bill Rea says:

    Yes we did see the hose clamp before you but , we were too embarrassed to inform you . My bad .

  13. Avataaar/Circle Created with python_avatars John Buxton says:

    T
    Pipe Thread tape and clean the threads

  14. Avataaar/Circle Created with python_avatars Goldenhordemilo says:

    That hose clamp was a fail

  15. Avataaar/Circle Created with python_avatars Corn Digger says:

    That 22RE engine was the best 👍🇺🇸 (I had a 93. 5 speed manual, a/c was cold 🥶❄️👍) Sold it in 2008. 😥

  16. Avataaar/Circle Created with python_avatars Johnny Estrada says:

    Why don't you use a ratchet wrench ?

  17. Avataaar/Circle Created with python_avatars aussieaeromodeler says:

    oh look ……..it's fitted with a millennial anti theft device 😀

  18. Avataaar/Circle Created with python_avatars John says:

    Love the comment about 2 Schrader valves. Reminds me of my plukey youth when I worked in an old London Transport bus garage. The preparation tech (he checked each bus at night before it went into passenger service) said he couldn't inflate a tyre that looked low on PSI. The tyre had an extension tube which had a Schrader valve fitted, however the original valve had also been left behind. 2 valves means no PSI checkability. We live, we learn (sometimes)

  19. Avataaar/Circle Created with python_avatars James Sampson says:

    Would have liked to see the pressures on the gauges so I could cringe after start up. Love your videos.

  20. Avataaar/Circle Created with python_avatars TJ Kaczynski says:

    Rainman you are the rainmaker!

  21. Avataaar/Circle Created with python_avatars Steven Maynes says:

    AC button

  22. Avataaar/Circle Created with python_avatars Judy MacGillivary says:

    Wait. Ray without gloves? WHAT is going on?

  23. Avataaar/Circle Created with python_avatars Joe Love says:

    WHy convert it? Just fill it with propane instead of 134a– it works just fine.

  24. Avataaar/Circle Created with python_avatars MonkeyJedi99 says:

    I laughed at the inclusion of the extra gas (or was it brake) pedal in that truck.

    Serious tale, the first time I drove an automatic (I had been exclusively driving stick for years up to that point) I was borrowing my store manager's pickup to do a bank deposit.
    Got going fine, but when I went to stop at a traffic light, my muscle memory took over and I went to depress the clutch before braking, which means I put BOTH feet on the brake pedal and nearly ate steering wheel for lunch.

  25. Avataaar/Circle Created with python_avatars Chris Harris says:

    Ahh yes, the 90's. I remember them well. I was certified back then as a mechanic to handle refrigerant. I remember the intense debates over how to do a "proper" conversion. The problems with o rings was made worse because the synthetic oil would deteriorate natural rubber and cause leaks. The other arguments all had some validity based on stationary refrigeration systems, but the automobile world is an entirely different one though, and I still cringe at some of the practices I see. Back then, I heard anecdotal evidence that many fleet owners were just dumping in R-134a and not running into serious issues. I ended up putting it in my '81 Camaro (R4 compressor) and ran it for about 5 more years without problem.

    I would not recommend changing out the oil unless you are going to do a COMPLETE retrofit including flushing the system, new receiver drier or accumulator, and new O rings. Use POE (ester) oil as it is a lot more forgiving in a retrofit when mixed with mineral oil. Don't use PAG in a retrofit as it does not react well with moisture and contaminants. OEMs use it in new cars where it is clean and dry. The properties of R-134a are close enough to R-12 you don't need a new TXV (good luck finding one for your application anyway) and orifice tubes will work with just about anything you put in it. Capacity loss is a given, but it's better than nothing. As to the weight of the charge, TXV systems should have a sight glass and are more forgiving; or you can go by subcooling and orifice tubes should go by superheat.

    Don't even get me started on the refrigerant/oil/dye/stop leak products…

    Thank you, Ray, for your work. It is nice to see someone who cares about the customer over the company or its profit. At the end of the day, we all just want to be treated fairly.

    BTW, I can drive a stick. Learned on a 1968 C10. Three on the tree…

  26. Avataaar/Circle Created with python_avatars rorschach602 says:

    Are you allowed to work on a 19XX vehicle without a speed wrench?

  27. Avataaar/Circle Created with python_avatars Hoosiertrucker says:

    I know what that is…it's a millenial anti-theft device…lol I have one in my car!

  28. Avataaar/Circle Created with python_avatars Jubblies mcsugartits says:

    I went full idiot ……..😂

  29. Avataaar/Circle Created with python_avatars Jeremiah says:

    Millennial Anti-Theft Device

  30. Avataaar/Circle Created with python_avatars Thomas M Leahy says:

    The famous one armed man stick shifting. And a new wrist cam? Pretty good mic on that cam.

  31. Avataaar/Circle Created with python_avatars catwrangler16 says:

    His humor is great I'm guessing he's a lefty.
    I suffer from the same condition.

  32. Avataaar/Circle Created with python_avatars Richard Hyzy says:

    Lol you figured out the anti theft mechanism. 😁

  33. Avataaar/Circle Created with python_avatars Ryan Bianchi says:

    Why on earth would you want to convert from an AC system that gets colder to a less efficient one?

  34. Avataaar/Circle Created with python_avatars Hubert Harned says:

    your boss there shood tell you, get rid of the camera or look for another job. did your mother have any kids that lived besides you.

  35. Avataaar/Circle Created with python_avatars JACQUES van der westhuizen says:

    You can't get a 22RE Engine in South Africa …only the 22R witch was the same but no fuel injection only carb ..These engines were fitted to the 90s Toyota Hilux pick ups and the Toyota Cressida..had both and great engines …terrible AC systems though lol

  36. Avataaar/Circle Created with python_avatars Jordan Levitt says:

    elbow fitting for the win!

  37. Avataaar/Circle Created with python_avatars Greg M says:

    We replaced r12 with mp66 and it worked just fine.

  38. Avataaar/Circle Created with python_avatars Edward Demedeiros says:

    Where there is a Ray, there is a way.

  39. Avataaar/Circle Created with python_avatars purtis99 says:

    Deep socket not work???

  40. Avataaar/Circle Created with python_avatars m tucker says:

    In the first couple minutes, that’s an anti-theft device 😂😂😂

  41. Avataaar/Circle Created with python_avatars Richard Ploeser says:

    I still contend that the designers need to be smart enough to figure a way for the "TECHS" who have to fix their screwups, should certainly have easier access!

  42. Avataaar/Circle Created with python_avatars Charles Murphy says:

    That’s not two gas pedals silly, it’s two brakes.

  43. Avataaar/Circle Created with python_avatars SilvaDreams says:

    Christ a r12 to r134a in 2021… Man last car I converted over was like 15 years ago and that was on my grandfather's 1992 Toyota pickup… And yes it's still on the road, we fixed it up and my nephew is driving it now with a fully rolled odometer. Thing got driven all over the US and towed behind an RV all across the US.