O-rings - A/C lines
#1
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Hey guys goodmorning. I just finished putting everything back together doing the AC Evap/heater core replacement. But i am leaking (not a slow - loud hissing)R134a at the A/C line connector to the firewall (engine side). Did you guys replace your o-rings? Hopefully this will do it. Both lines are on and I heard a click when re-installing the lines (spings engaging). I hope i didn't damage the lines when disconnecting.
Many thanks
O
Many thanks
O
#6
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It's always a good idea to get new O-rings when doing a job like this. Since you are going to have to take it apart again, get yourself a set of new O-rings and replace them. You also forgot to vacuum the system. The reason to do that is to check to see if you have any leaks before filling with freon.
#7
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#8
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Your right zman, I only hit on one reason. The other reason is to burn off any moisture that is in the system. Many people only vacuum for 30 minutes and think it's done. I have read it's good to vacuum and let sit for 45-60 minutes. Some may even do a couple of vacuums to burn off any moisture. I have also read about using sacrificial freon to test your system and evacuate any moisture in the system. The OP or user of a given system has to judge just how much of a moisture issue they have in their system based on how long the system has been open to the environment. I know you know this stuff zman but for most people moisture may not seem like a real problem, but when mixed with freon it makes an acid and eats away your system from the inside out.
#9