Pressure Regulator isnt holding a constant Pressure?

[RjBu]

Hey guys so i had my regulator set at 12psi for a a 1/4 of Milwaukee Brewing's Louie's Demise and is usually fine (stays at 12psi) if i drink "a" beer a day but last night after not having one in a couple of day i checked and the psi was down to 8?? I am still getting a considerable amount of foam and the bee is running like it is set higher then 8psi, the temp is good, new lines, chilled tower (older perlick woody)... Do i have a bunk pressure gauge? Or is the whole regulator kaput? I should say that it takes multiple turns of the adjustment screw both ways before i get any action....

[TomK]

My regulator only takes a tweak of the screw to move a pound.

[2004blackwrx]

I have similar problems. I try to keep it at 14. Usually I raise it to 14 and hours later I check and it goes all the way to 20. Then I lower it to 14 and I drink for a while and notice I lose pressure and I am down at 8. I always use the lock not after a change so I know its not moving. My CO2 is in the fridge which I heard could lead to a small delay in the pressure changing from when you change but in my case it seems to drastic a change for how I understand it should be.

[2004blackwrx]

So I was further trying to resolve my regulator issue. I came accross this article. http://www.micromatic.com/beer-quest...or-aid-87.html I followed the article exactly as described. I set the pressure to 14 psi. However when I open the valve to let the co2 flow into the keg the psi reads 8. I have allowed over ten minutes for the pressure to come up and it has not. I have tried this a couple of times with no luck. Any suggestions. Should I make sure the regulator is at least reading 14 when hooked to keg in order to insure the beer doesnt go flat or should I leave it at 8 psi(although the regulator is set to 14).
Thanks

[RjBu]

Ok more questions now... I went out and bought a new regulator and put all new co2 lines and connections. Still have an issue with the new regulator, i have to turn the knob multiple times before i get and movement and i set it at 14 and will come back to it and it is at 10... reset it to 14 and back to 10 wtf?? Did i buy a second bunk regulator?

[Scott Zuhse]

Did we leak test the pressure system? If the diaphragm in the regulator is constantly moving due to a leak, the low pressure gauge's pointer has no idea what to do since there is always gas moving inside the low pressure port of the regulator.