HVAC Hose Fittings

[orange57]

Hey guys,

I fixed a leak in my AC system and now want to pull a vacuum and make sure it will hold. A friend of mine lent me a vacuum pump, however, my R134A gauge set service hose has a larger fitting than what is on the pump. My friend said it was an old commercial pump. Does anyone know what sizes I may need for adapters to get the R134A hoses on? Aren't the 134A fittings larger than the R12 fittings of yore? I haven't been able to find anything that adapt from R134a to R12, but many items that will adapt from R12 to R134a. Any advice is appreciated.

thanks,
matt

[inafogg]

http://www4.shopping.com/istlo?mn=eB...cd6c9224c&CT=2
or search r134 to r12

[jdmccright]

Not sure how the fitting is attached to your pump but you can get the right fittings in a R134a fitting conversion kit for cars/trucks. Just unscrew the old style and screw in the new one...$10 at any auto store, Walmart, etc.