by Eddie
(Pulaski tn)
I have a husky 33 gal 165 psi air compressor and when the red knob on the manifold is tightened air starts to leak from it.
This is a fairly new compressor.
Husky 33 gallon compressor information plate
I’ve used it multiple times and just all of a sudden when tightened the red knob on the manifold air starts to leak from it. I have taken the knob off and inspected all parts and they all look good. What could be the problem?
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Husky regulator leak
Eddie, are you trying to increase the downstream pressure setting, or lower it?
After you have adjusted the pressure on the regulator knob does the leaking stop?
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Husky regulator knob leak.
Bill, it leaks when I try to increase air pressure.
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Leaking Husky regulator
And when you stop adjusting the pressure, does the leak continue, or stop?
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Leak regulator
It continues to leak. Only when it’s completely decreased it doesn’t leak
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Regulator leaking
Well Eddie, that suggests strongly that your regulator diaphragm has been perforated.
Perhaps by oil degradation, heat, long use, whatever,they don’t last forever.
I suspect it’s time for a new one.
If you do get a new one, do take the old one apart so you can see what’s inside, and perhaps spot where the leak occurred.
If you do that, please start a new thread and upload some photos of the damaged diaphragm will you?
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Leak regulator
I appreciate it. I will certainly upload photos of anything I may find once I swap them out. Thanks for the help.
New comment? New question? Please add it here along with photos to help others help you with your compressor and equipment problem!
I have the same compressor and experienced the same issue. In my case, the rubber o-ring seal on the “plunger” under the knob was not properly seated. I took it apart, removed the rubber seal, and gleaned out some burrs in the channel that were preventing it from sealing against the housing properly. Then I cleaned up the inside of the housing with a rag and some carb cleaner. Once it was dry, I lubed up the inside of the housing and the o-ring with rubber/plastic safe grease and put it back together. That solved the leak. That has exposed… Read more »