95 factory R134 high side port a/c leaking--help
#1
Join Date: Apr 2011
Location: Galleria Area Houston, Texas
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95 factory R134 high side port a/c leaking--help
Hello guys, my high side port ball valve.....hate a/c ball valves...is leaking. If I take the cap of I can see some dye, so I am having it replaced.
Should I have the drier replaced too since the system has to be evacuated, and if I do how much PAG oil do I need to make sure they add after replacing a drier??
Thanks !!
Should I have the drier replaced too since the system has to be evacuated, and if I do how much PAG oil do I need to make sure they add after replacing a drier??
Thanks !!
#2
Hello guys, my high side port ball valve.....hate a/c ball valves...is leaking. If I take the cap of I can see some dye, so I am having it replaced. Should I have the drier replaced too since the system has to be evacuated, and if I do how much PAG oil do I need to make sure they add after replacing a drier?? Thanks !!
#3
Here's one kit which is kind of pricy but they do make single use kits too for a single valve gut change. No need to lose anything in the system or recharge.
#5
Join Date: Apr 2011
Location: Galleria Area Houston, Texas
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Here's one kit which is kind of pricy but they do make single use kits too for a single valve gut change. No need to lose anything in the system or recharge.
Amazon.com: Mastercool (58490) Black Universal A/C Valve Core Remover/Installer: Automotive
Amazon.com: Mastercool (58490) Black Universal A/C Valve Core Remover/Installer: Automotive
any idea how much oil to add when the drier is being replaced
#7
My service manual says to drain out the PAG oil (I used PAG150, although there is never any specifics that confirms that) and replace the same amount.
HOWEVER
It also says that it can be expected to lose
(a) 80ml from the compressor
(b) 30ml from then oil separator
Then it says that the nominal capacity of the system is 135ml. It goes on to say that the discrepancy between (a) + (b),which totals 110ml and the 135ml capacity is due to "normally unrecoverable oil being trapped in components such as the receiver/dryer or evaporator".
For the older models it gets more specific:
(a) receiver/dryer bottle requires 28cc or 1 fluid ounce
(b) new condenser requires 85cc or 3 fluid ounces
(c) new evaporator requires 85cc or 3 fluid ounces
I hope this helps....
HOWEVER
It also says that it can be expected to lose
(a) 80ml from the compressor
(b) 30ml from then oil separator
Then it says that the nominal capacity of the system is 135ml. It goes on to say that the discrepancy between (a) + (b),which totals 110ml and the 135ml capacity is due to "normally unrecoverable oil being trapped in components such as the receiver/dryer or evaporator".
For the older models it gets more specific:
(a) receiver/dryer bottle requires 28cc or 1 fluid ounce
(b) new condenser requires 85cc or 3 fluid ounces
(c) new evaporator requires 85cc or 3 fluid ounces
I hope this helps....
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#8
#9
By the way, if you're going to replace the receiver/dryer, you may also want to replace the A/C expansion valve in the back.
When I did my system, I found a bunch of pellets in there from the drier.
It was an easy replacement task and I don't recall the valve being expensive.
When I did my system, I found a bunch of pellets in there from the drier.
It was an easy replacement task and I don't recall the valve being expensive.
#10
#12
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sidescrollin (10-21-2014)
#13
I'd go maybe .75 oz?
#14
Join Date: Apr 2011
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Well, I bought a new drier and merrily headed down to the a/c shop. The port no longer looked like it was leaking, so he put some soapy water in both ports and said they weren't leaking. He did that procedure twice. He said all ball valves may leak a tiny imperceptible amount but that's what the caps are for. The caps are not just "dust" caps, especially on those ball valve ports. So it looks like the ball "reseated" itself.
I wonder what is the shelf life on a drier now that I bought one.
I wonder what is the shelf life on a drier now that I bought one.
#15
A plastic dust cap isn't going to hold 50psi and it certainly isn't going to hold 250psi. Many of them even feature a tiny hole, so if there is a leak, they don't shatter.
also, if the ball valve slightly leaks, it isn't like its getting back if the cap did seal, so retaining it in that small area wouldn't accomplish anything, if its out, its out.
probably the best you can do for the drier is vacuum pack it and maybe throw is some other desiccant to absorb whatever is left in the bag?
also, if the ball valve slightly leaks, it isn't like its getting back if the cap did seal, so retaining it in that small area wouldn't accomplish anything, if its out, its out.
probably the best you can do for the drier is vacuum pack it and maybe throw is some other desiccant to absorb whatever is left in the bag?
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