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Thread: Stuck stem valves
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25-05-2012, 12:29 AM #1
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Stuck stem valves
Just curious as to if any of you guys have a trick or something to free up stuck service port stem valves on semi hermatic compressors. Running into quite a few and whacking them usually works at freeing them up, but lately it`s not working. Is their something else to try and free them up without changing out ?
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25-05-2012, 09:18 AM #2
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Re: Stuck stem valves
A bit of heat on the valve body perhaps?
...and she said "give it to me you big fridgie"
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25-05-2012, 09:49 AM #3
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Re: Stuck stem valves
Do you mean in the backseated position or just generally tight?
Originally Posted by jakb21599
Only had some new, rotor-lock service valves that could not be moved off back-seat, so i used the oxy flame to heat the valve body. (fast but not too much heat) Use a wet rag to protect gland packing. Ratchet in the valve stem then cool valve body slowly.
To the optimist, the glass is half full. To the pessimist, the glass is half empty.
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25-05-2012, 12:36 PM #4
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Re: Stuck stem valves
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As above but I have released the packing gland and found that helps sometimes.
taz
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