Author Topic: Regulator creep, and slow response—WAR Cobra.  (Read 741 times)

Alan

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Regulator creep, and slow response—WAR Cobra.
« on: December 18, 2018, 02:00:18 PM »
I don’t know if anyone else has had this issue, but here was my solution.

The problem was inconsistent regulated pressure on a Wicked Air Rifle, Cobra model. Sometimes, after firing, the regulated pressure would return almost instantly, and sometimes it would take a minute or more. Worse, after sitting overnight, the pressure would creep up several hundred pounds. As time progressed, the issue got worse, and Jim Gaska sent me new parts for the regulator. Although the parts reduced the issue, I was still getting inconsistent grouping caused by the varying pressure.

I recently had the gun all apart while installing their (W.A.R.) new-style suppressor*. I suspect I should have looked at the regulator then, but time was waining at the time. But not today! I completely disassembled the regulator, and cleaned all of the parts with denatured alcohol. I replaced on o-ring which didn’t look too good, and reassembled the regulator with a liberal amount of clean silicon grease. If you’re unfamiliar with the regulator, there is one extra step you have to do to make sure it seals correctly. That involves using the butt-end of a 3/32 drill bit to assure that one of the o-rings clears the low-pressure side bleed hole.

Digressing a little bit. The old cliche about cleanliness is next to Godliness, is true! After all, we’re talking about 4,500 PSI! Even a minute spec of dirt will cause issues with both regulation, and regulator creep! So it pays to clean the work area spic and span, before you start working!

I preformed the work about 4 hours ago, as I write this. It is holding regulated pressure, dead-on! When dry firing, the regulated pressure setting returns almost instantly, and that’s the way it is supposed to be!




*There is more to this "suppressor story" than meets the eye. What should have been a 20 minute job, turned into a 3.5 hour nightmare! I'll be happy to share this, but only in PM format!


  • Roswell, New Mexico
Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

Motorhead

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Re: Regulator creep, and slow response—WAR Cobra.
« Reply #1 on: December 18, 2018, 10:33:55 PM »
Loose the silicone lubrication ......  :P
Or with silicone should say "LACK OF" lubrication being it sucks at such tasks.

Buy some CorrosionX and give it a try sometime  ;)


Use the manual squirt bottle version ...
  • Old Hangtown ... California
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Alan

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Re: Regulator creep, and slow response—WAR Cobra.
« Reply #2 on: December 19, 2018, 04:32:03 AM »
I agree the stuff works well. In fact, that is the product I used the last time I rebuilt the regulator. I'm not blaming the issue on CorrosionX per se, as it is a good product.

I rechecked the gun this morning, and it is holding air, and the regulator is dead on 1,825 where it was set yesterday at about noon.

One thing I didn't mention before... The gauges were special ordered from Wika, and are class 4.
  • Roswell, New Mexico
Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

Motorhead

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Re: Regulator creep, and slow response—WAR Cobra.
« Reply #3 on: December 19, 2018, 08:19:04 AM »
Fair enough ...  ;D

I chase "Seat" damage a lot in those regs that drift or slow to stabilize.
Generally a fresh FACE OFF, or a new seat that has no ridge worn in cycles swiftly and accurately more times than not.
  • Old Hangtown ... California
"Home of Motorheads Air Gun Tuning Service"
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Alan

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Re: Regulator creep, and slow response—WAR Cobra.
« Reply #4 on: December 19, 2018, 11:07:56 AM »
I agree. I do know that WAR has been working on the creep issue for some time. this latest iteration is perhaps closer to the ideal, but whether it gets the cigar, remains to be seen.
  • Roswell, New Mexico
Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

rsterne

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Re: Regulator creep, and slow response—WAR Cobra.
« Reply #5 on: December 19, 2018, 01:18:37 PM »
Scott, I use Dow 55 on all my O-rings (static or sliding).... Have you ever used that, and if so, why do you favour the Corrosion-X ???

Bob
  • Coalmont, BC

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Re: Regulator creep, and slow response—WAR Cobra.
« Reply #6 on: December 19, 2018, 04:44:47 PM »
Scott, I use Dow 55 on all my O-rings (static or sliding).... Have you ever used that, and if so, why do you favour the Corrosion-X ???

Bob

Multifold ...
Especially in Brass regulators / part's it completely mitigates oxidation and green slime issues.
Stops any water based corrosion within the regulator which is nice with aluminum parts too.
Excellent lubricant being very long term stable.
Does not appear to swell o-rings be them Buna or Poly

Just had excellent luck with the product and been using it near 20 years is various applications. In Regs the last 5-6 years w/o issue.

LOL .... sadly i'm a rebel in such things and like to do things differently attempting to find advantages.
  • Old Hangtown ... California
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rsterne

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Re: Regulator creep, and slow response—WAR Cobra.
« Reply #7 on: December 19, 2018, 05:45:26 PM »
So you tried Dow 55, then?.... What issues did you find with it?....

Bob
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Re: Regulator creep, and slow response—WAR Cobra.
« Reply #8 on: December 19, 2018, 07:13:32 PM »
No problems at all ... just found product more broad application useful and equally effective for the task.
Dow 55 does what it is advertised too do without question.
  • Old Hangtown ... California
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sixshootertexan

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Re: Regulator creep, and slow response—WAR Cobra.
« Reply #9 on: December 19, 2018, 07:55:17 PM »
I started using Ultimox 226 and had no problems so far.
CCS 2300, CCS 2400, Custom Built Regulated .25, Custom Built PRod Clone, .308 Bullet shooter, XS46U .177, Custom regulated .177, 850 Hammerli .177