Nobody mentions that the little refills you get for r134a don’t actually contain r134a, they contain a “compatible gas mix”. I looked into the data sheets & it’s basically propane (it’s listed as “hydrocarbon gas” with a boiling point extremely close to propane). That’s legal & sold on the internet.
@DonPavardenis11 ай бұрын
one of the resons why i started doing my reaserch, scamming ppl in daylight
@clivehaynes21833 жыл бұрын
I understand from an Australian website that a mix of 79% r290 with 21% r600a is an ideal mix.
@giubaca4 жыл бұрын
Great explanation. It worked just fine. I've learned a lot. My compressor has variable displacement. I don't have exact values, i will retest again. With 30-70 mix i got evaporator temperature to 2.7°C (with small variations), and i used 70% by weight initially from where i had to release a little bit several times... i will vacuum it again and try exactly 50% by weight of original 1234yf
@giubaca4 жыл бұрын
Hi. I emptied the system and refilled it again this time i used ~510grams of LPG (1000gr 1234yf) so roughly 50% by weight. Something weird happened today... i can read temperature for both evaporator and condenser, condenser inlet temperature was roughly 105°C and evacuation temperature ~30°C. Evaporator temperature was fluctuating between 10-20°C. Outside were 25°C. System pressure 5-7 bar. I used a mixed LPG and I'm not sure of percentages content anymore 🤔 . I also suspect my micro leak is still present. About 3 weeks since last refill and today my AC wasn't cold enough.
@christopherjohnking2 ай бұрын
Thanks for posting this - very helpful
@oldbiker97392 жыл бұрын
my 1991 GMC 1500 with a 5.7 v8 runs on propane and gasoline , I have always used propane to top off the A/C ,I just run a hose from the propane tank to the low side and fill to 38 pounds ,its been that way a long time . propane in Alberta Canada is 90 cents a liter , gas is over $ 8 dolor's a gallon
@justdoingit.4316 күн бұрын
God forbid the refrigerant burn in an accident. It's a good thing gasoline is not flammable.
@yxcvmk21 күн бұрын
16:55 This is pretty much a regular propane/butane bottle from the camping supplier? Seems to be more convenient than mixing 290/600?
@klausisense8 күн бұрын
correct, on amazon I found camping gas in single use cartriges with thread with 70%B+30%P and 80%B+20%P. So you can even play a little with lower propane content
@aelc4tdim8585 жыл бұрын
Excellent video and tutorial. In my case its Mercedes w220 cdi with same tipe compress as you c class. So 30%r290 to 70 r600a is best ratio. Can i please ask how do you measure evaporator temperature? Only was for me to do it ,is measuring went temperature ? And what about oil compatibility,is r290/600a compatible with pag oil used by Mercedes? Thank you and please reply if you can.
@thisisyourcaptainspeaking22592 жыл бұрын
Don't forget, these hydrocarbon refrigerants will not carry the newer types of refrigerant oils properly through the system, the oil will become trapped in the evaporator and the compressor will not be lubricated. An oil miscible in the refrigerant must always be used to enable it to travel through the system with the refrigerant.
@vonrohr1968 Жыл бұрын
Thank you. Very helpful
@powerair9994 жыл бұрын
Great summary! Thank you!
@josepeixoto33844 жыл бұрын
Does that mixture R290, R600 work with the PAG 46 oil from the R134a? won't damage the compressor? Thanks
@clivehaynes21833 жыл бұрын
note no answer, this is something that I would like to know, did you find out?
@moavic50872 жыл бұрын
Don’t do it it will damage it.
@markus677527 күн бұрын
Text mit deiner Kamera übersetzen Roughly how much of the mixture of 70% butane and 30% propane do you have to pour in? There are ready-made blowtorch bottles to buy. Original on the vehicle Filling quantity R134a with 500g.+/-25g. Thank you for the answers
@yxcvmk21 күн бұрын
I'm thinking the same. Rather than mixing 290/600, a blowtorch bottle with propane (some only have butane) comes to mind. I actually thought of one for camping, but as both sould be ein the range of the here shown 70%butane, 30% propane, and then this would save the manual mixing, and probably be cheaper, too. Interesting topic.
@dangerousfreedom49655 жыл бұрын
Great vid
@lau123426 жыл бұрын
Interesting solution. Is charging a car system about the same than with r134a apart from self made adapters and couplings? I red few product catalogs and allmost every ref.producer say that R290 or R600 or mix of these two is not a replacement for R134a system. I guess they are affraid of losing their business if people start converting their systems to these kind mixes. AND what comes to safety, I think that using LPG or LNG as fuel is MILLION times more dangerous if you hit collision/accident..
@theengineer1346 жыл бұрын
Well apart from the couplings it’s the same, just keep in mind that the density is lower so you will need less by weight than with R134a. I think the reason you don’t read about a mix in Industry is because there is no need to they just design the systems to R290 or R600a if required (but there are some other mixed refrigerants on the market like R407C for domestic aircons) The maintenance of old existing units isn’t a big concern to them. As I said safety is something everyone should evaluate for himself - I would prefer Propan over R1234yt in a new car since it doesn’t let off toxic fumes when burning. Still I think the amount is pretty small compared to the gasoline/diesel/LPG/battery that is driving just car forward. But if you don’t feel safe better keep you hands of this stuff since I think charging the system is the most dangerous part - some hose or coupling could fail and your standing right next to it.
@HasanProd4 жыл бұрын
@@theengineer134 hello. can i have your email? im interested in having an indepth conversation with you
@yxcvmk21 күн бұрын
@@theengineer134 For the same reasons you mentioned, I kind of feel it's safe, too. And the leaking system (which will eventually happen) is usually having a very small leak, so there is most likely never a flammable mixture under the hood/in the car when leaking...
@barefoot693 жыл бұрын
Great, that all makes sense but how do you refill system at the gas station? I mean, how do you pump LPG into the AC system. and how is the compressor lubricated?
@miladkosoric14695 жыл бұрын
First thank you for an informative video. I would like your oppinion on topping up ac sistem with 30/70 propane/buthane mix which allready has r134a in it? So basicly would it be theoreticly possible to mix r134a 750 grams with 50 grams of propane/ buthane? Lets say the system has a mechanical cluch.
@arminlinder70773 жыл бұрын
Brazing gas cartouches (e.g. Rothenberger Topgas/Multigas) contain, according to their product safety sheet, 70% Butane(R600/106-97-8) and 30% Propane(R290/74-98-6)) -- seem to be an ideal solution? Anyone tried this?
@maxs351 Жыл бұрын
Genau andersherum leider. 30% Propan, 70% Butan ! 😑 Am besten beides einzeln kaufen oder LPG benutzen. (Am besten Winter-mischung)
@arminlinder1148 Жыл бұрын
@@maxs351 Really? See: cdn.manomano.com/files/pdf/11146928.pdf What worries me more is that they don't seem to care much what they fill into the cartouches, as long as it burns, the tolerances in the mixture are huge. Nevertheless I used it, and had no problem, my AC works just fine.
@j.h.71484 жыл бұрын
Nice video, thanks! Do you think it is a good idea to just refill a R134a - car ac with propane or LPG after gas loss?
@giubaca4 жыл бұрын
Pure propane has a temperature of -10 °C for ~2.5bar, where r134a has 2°C for ~2.5bar. If you use only pure propane (R290) the evaporator will get into a block of ice. Find an LPG mix and use that maybe... You must find and fix the leak. Don't fill up a system leaking. About 10% loss a year is normal i hear but if you gas leak don't refill it. Also gas loss can happen when system not used, o-rings will dry and micro losses will be everywhere.
@altmuligmannen30865 жыл бұрын
Thank you for the very interesting video! How do I know if my car has an on/off type compressor with the magnetic clutch, or the more modern variable type? If It has the old type, I gather it should be ok to just top up the ac with any source of lpg gas without much concern about the propane/butane ratio, but if it has the modern type compressor I should at least try to establish what ratio it is before using it...? Would I find the popane/butane ratio from a temperature/pressure chart if I just connect a pressure gauge to the lpg tank and make note of the tank pressure and ambient temperature?
@littlerhino20065 жыл бұрын
You'll be able to hear the older type cycling on and off, they make a pretty loud clicking noise when the compressor engages
@giubaca4 жыл бұрын
Just look at it... it's visible from outside, very clear when the engine is running/rotating
@aelc4tdim8585 жыл бұрын
Forgot to ask Are you using r600 butane or r600a isobutane? Thank you
@yxcvmk21 күн бұрын
r600 is pure butene, but what exactly is r600a - a mix of butane and? Maybe already a mix with propane?
@joshuaelmer16646 жыл бұрын
What temperatures are you getting out of the vents
@joshuaelmer16646 жыл бұрын
Compared to using r134a
@ionutzionutz71064 жыл бұрын
Hello. Thx for this information. In your opinion the oil in the R134a system will work with the new R290 / R600 refrigerant, or is necesary to flush old oil, we need to replace the oil with a compatible one? Thanks
@clivehaynes21833 жыл бұрын
This is something that I would like to know, did you find out?
@philipsturbotechnik3396Ай бұрын
If you're still interested. You can keep your oil. The oil is for the compressor. If the compressor is designed for PAG you have to use it.
@Gamer95PC5 жыл бұрын
Wie könnte man hypothetisch einen passenden Adapter bauen?
@PaulChillen6 жыл бұрын
Das ist wirklich eine spannende Idee! Wie ist die Kühlleistung mi dem 30/70-Gemisch?
@theengineer1346 жыл бұрын
Paul Alvarez Löblich Eine objektive Antwort habe ich darauf nicht, gefühlt macht es keinen Unterschied zu R134a. Soweit ich weiß ist die volumetische Kältleistung von Porpan höher, wie es mit dem Gemisch steht müsste man mal recherchieren. Allerdings hängt die Leistungsfähigkeit auch noch von vielen anderen Faktoren ab, gerade wenn man keinen Einfluss auf die Elektronik hat.
@mcroitalot5 жыл бұрын
Hi there, I like your idea of using lpg as an alternative. I have a touareg which has lost its charge and I am considering using a 290/600a mix But I have a question, Did you flush the factory lube oil out of the system and replaced it with a different type of oil? If so, how did you do that? And if not, then why? - As far as I know, the typical lubricant for r134a systems is polyalkylene glycol (PAG) and is not recommended for hydro carbon systems, but mineral oil is. Maybe alkylated benzene, polyalphaolefins and esters can work sufficient, I dont know... Feel free to email me. Best regards Greg
@littlerhino20065 жыл бұрын
Search for an 'A/C flush kit', shouldn't cost more than 60 USD. They make solvents specifically for A/C systems to put in them. Charge the can with compressed air, seal the rubber nozzles against the component for flushing and fire away. You'll want to replace the drier/accumulator as they hold a lot of oil in them.
@dangerousfreedom49655 жыл бұрын
How did you make the tank adapter?
@ShainAndrews5 жыл бұрын
Welding, brazing, and soldering are not recommended.
@maxhorner24092 ай бұрын
Get an old BBQ grill take the tank adapter off the regulator then just a matter of fittins
@DaveC2729 Жыл бұрын
You do realize that the reason they don't use propane is that it is flammable, right? If it leaks inside your cab and finds an ignition source, your car will explode.
@yucannthahvitt251 Жыл бұрын
You do realize R290 is used extensively in industry, right? A leak from a fuel line is far more dangerous than 10oz of propane. Also R1234YF, which is commonly used in modern cars, is flammable.
@nutgone10011 ай бұрын
You do realise that a lot of the “off the shelf” DIY refill kits contain flammable hydrocarbon gas mixes, right? It’s not a huge amount of gas, the smell is quite pungent & it’s well ventilated. Highly unlikely to cause any problems.
@mikafoxx271726 күн бұрын
@@nutgone100 refrigerant grade propane gas zero smell. They add that to cooking propane, it's called ethyl mercaptan.
@yxcvmk21 күн бұрын
@@mikafoxx2717 Maybe even more of a reason to buy blowtorch/camping cartridges which have some propane, but more butane in the mixture...
@mikafoxx271721 күн бұрын
@@yxcvmk The filter driers filter that smell out anyways, so it'll be gone by the time you have a leak. Get the good stuff with no moisture meant for AC systems