You think this would be a good set? It's got triple seal piston valves and made in USA. 
https://www.cpsproducts.com/product-details/mt2o7p5/
https://www.cpsproducts.com/product-details/mt2o7p5/
CPS Manifold Gauge Set
- Thread starter Soft Cars
- Start date
I have Yellow Jacket, I would check them out.
What are your plans for it?
Maybe top off the A/C when the weather gets warmer. I don't have a leak, but I heard that the molecules are so small, that they seep through the rubber hoses a little bit at a time.
The automotive industry switched to nylon-lined barrier hoses sometime in the late 80s/early 90s to stop that.
Oh cool, I did not know that.
I think the compressors drive shaft seal between the magnetic clutch and the compressor is the main area where refrigerant escapes. And some leaks there even with a new unit, but with age the seal looses some of its ability to stop leaks and it leaks more. If the bearing of the compressor gets slop in it so the seal gets exposed to the shaft wobbling then the seal will wear out much quicker and have much more leakags, and this is why very old compressors loose too much refrigerant and have to be replaced even if they still pump freon well.
The way you can generally tell is that barrier hoses are used with bubble crimps that look like this:
Non-barrier hoses use crimps like this, or hose clamps:
I have Robinair made in usa.
Btw, most electric vehicles and some hybrids have an electric motor that drives the the refrigerent compressor and that motor and the compressor can be in the same case therefore not having a shaft seal that allows refrigerant to leak out.
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And, the electric motor for the compressor is supplied with high voltage (often by an inverter that steps up the voltage from the vehicles main drive battery) and the oil in the refrigerant system is special oil that has extremely low moisture and extremely low electrical conductance and if it requires servicing must be serviced only by a machine that is for refrigerant systems of electric vehicles. If you service an electric vehicle air conditioning system with a gauge that has been exposed to the oil of a regular car air conditioning system you will contaminate the electric vehicles refrigerant system with too much moisture and too much oil that has an ability to conduct electricity and that will cause the electric motor to fail. Once you contaminate an electric vehicles refrigerant system like that the entire refrigerant system has to be replaced and that is very expensive. So never service in electric vehicles air conditioning system with anything other than a dedicated system for electric vehicles.
Won't work. The hoses are 1/4 sae threads and not quick connects for r134 or r1234
Just need to buy a set of quick couplers to go with it.
He would need these.
I have a similar set that I use for hvac work, had it for around 10 years, I have gone through many hoses but the manifold is solid.
Have used it almost daily on r410a refrigerant, I have another yellow jacket set that I use for r22.
Both will be very good for what you will use them for.
Have used it almost daily on r410a refrigerant, I have another yellow jacket set that I use for r22.
Both will be very good for what you will use them for.
I have several Robinair sets and one Snap On set.
Well the proper way to charge an auto A/C is to remove (and save) the refrigerant, pull a vacuum and wait, check for leaks, then refill by weight.
So the proper was is to fill be weight rather than pressure.
A gave away my manifold gauge set when I moved. Too much expensive equipment needed to service an A/C properly.
