Pumping And Charging AC System - Automotive Repairs - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Do It Yourself > Automotive Repairs

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 04-24-2010, 07:57 PM   #1
Member
 
Join Date: Jan 2010
Location: Acworth Georgia
Posts: 77
Rewards Points: 75
Default

Pumping and charging AC system


Freon leaked out of the suction Schroeder (SP?) valve so I plan to pump out and recharge it. With a new valve of course. I see some instructions say to pump down to 27 in HG and nothing said about oil. Others say to pump down to 29 in HG and to add oil. Does the oil boil out between 29 and 27 HG?

Advertisement

H. Phillips is offline   Reply With Quote
Old 04-24-2010, 08:15 PM   #2
Member
 
cowboy dan's Avatar
 
Join Date: Apr 2010
Posts: 77
Rewards Points: 75
Default

Pumping and charging AC system


Quote:
Originally Posted by H. Phillips View Post
Freon leaked out of the suction Schroeder (SP?) valve so I plan to pump out and recharge it. With a new valve of course. I see some instructions say to pump down to 27 in HG and nothing said about oil. Others say to pump down to 29 in HG and to add oil. Does the oil boil out between 29 and 27 HG?

ac repairs are what i would call a shop only job. for alot of reasons

Advertisement

cowboy dan is offline   Reply With Quote
Old 04-26-2010, 08:32 AM   #3
Member
 
47_47's Avatar
 
Join Date: Sep 2007
Location: Springville, NY
Posts: 1,517
Rewards Points: 622
Default

Pumping and charging AC system


Quote:
Originally Posted by cowboy dan View Post
ac repairs are what i would call a shop only job. for alot of reasons
I agree with the above. The only time you really need to add oil is if you are replacing a major component or had a catastrophic leak. Pump it down to 27-29" after two minutes turn pump off, wait ten and check to make sure the vacuum holds. Pump down for another 30. Recharge with weighed amount of refrigerant on low side with liquid.

Make, model and year would be helpful. Schraeder valves rarely leak, check your evap.
__________________
What we've got here is... failure to communicate. Some men you just can't reach. So you get what we had here last week, which is the way he wants it... well, he gets it.
47_47 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Top of Page | View New Posts