vacuum pump

[dolphins1131]

i will be servicing my ac soon and already ordered me gauges and vacuum pump

its a cheap pair and was wondering if it will do the job correctly

heres the specs on the pump

5Pa
Oil Capacity
320mL
Voltage
110v/60hz
Inlet Port
1/4" Flare
Power
1/4HP
Free Air Displacement
3.5 CFM

i just thought of this could i just rent these tools from autozone or will these work because i was watching a youtube video and the guy had a cheap pump and it looked like he only got his vacuum 20 under the 0

[Cusser]

I was 100 miles away from my vacuum pump, used the Autozone loaner, worked fine.

[dolphins1131]

just picked up the vacuum pump loaner
is a 1.5cfm 1/6 hp but its a mastercool

[Cusser]

Remember too that higher altitudes mean less numerical vacuum can be pulled.

[dolphins1131]

that might be what it was
on the loaner gauges the low side rests at 5psi
i think the needle is bent

i pulled a vacuum on the gauges and it got down to -25
i then closed the gauges and its holding at -25 for the last several hours

should work for what im doing

whats the limits on how long i can pull a vacuum on my 98 mustang 3.8l
how does the oil stay in the system when vacuumed

[Tim]

20 minutes.

[Cusser]

how does the oil stay in the system when vacuumed

The refrigeration oil (and dye) are not volatile at ambient temperatures even at the full vacuum.

[dolphins1131]

is 20 minutes the longest or shortest amount of time i can pull a vacuum?

[Tim]

Run it as long as you want. But normally these 12 hours runs are over kill.