Thread sealant compatible with R-134A
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Tuned
Joined: Aug 2010
Posts: 343
Likes: 7
From: Arizona
Thread sealant compatible with R-134A
Almost 2 years ago I replaced the compressor and accumulator, then evacuated and charged the system. The sensor that screws into the accumulator never did seal up right, even with a new o-ring; it's been getting a small amount of oil showing up around it. 2 years ago I chose to ignore it rather than open it back up and dump all the new refrigerant into the atmosphere. But now it's finally lost enough pressure that the system doesn't work, so this is the time to fix it for good. Is there a thread sealant, compatible with R-134A and the plastic threads on the sensor, that will make sure it doesn't leak?
Fleet Owner
Joined: Aug 2010
Posts: 21,253
Likes: 1,656
From: Reynoldsburg, Ohio
I'd use a LocTite thread sealant like one of those they offer for plumbing applications. If the sensor's threads won't seal even with a new O-ring that might be the best and quickest solution.
Also look into using #290 aka "green" as its a penetrating sealant but might not seep past the o-ring if trying to use it after installation.
Also look into using #290 aka "green" as its a penetrating sealant but might not seep past the o-ring if trying to use it after installation.
Fleet Owner
Joined: Aug 2010
Posts: 21,253
Likes: 1,656
From: Reynoldsburg, Ohio
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