Yong heng weirdness

[NickNorthGA]

So I have been using this compressor trouble free for a while and recently it blew an oring on the external filter. After replacing and filling a tank up(500cc) the gauge on the compressor will read 4500 while the gauge on the rifle reads 3500! 1000psi off seems a bit extreme lol. I don't have a pressure tester but was wondering what you guys make of this. Bad gauge on the compressor?

 

[Eaglebeak]

I'm assuming you didn't have the problem before the O-ring failure. It sounds like you may have a piece of O-ring jammed in a hose or fitting. Check that nothing is blocked between the pump and whatever you are filling.

 

[Why]

That YH gauge sounds like it's off. Go by the lower of the 2 just to be safe.

 

[NickNorthGA]

I'm assuming you didn't have the problem before the O-ring failure. It sounds like you may have a piece of O-ring jammed in a hose or fitting. Check that nothing is blocked between the pump and whatever you are filling.

Well the ring pretty much just stretched out from me not tightening the filter properly before filling so I dont think there is blockage but I will check.

 

[NickNorthGA]

Yea I def have been to be safe. I guess I will order a new gauge. Any suggestions? Im still pretty new to pcp.

 

[bandg]

Yea I def have been to be safe. I guess I will order a new gauge. Any suggestions? Im still pretty new to pcp.

The most logical thing is a sudden pressure drop may have possibly damaged the gauge. I'd think a new gauge is in order and as noted use the lower pressure reading until that is done.

 

[NickNorthGA]

Yea I def have been to be safe. I guess I will order a new gauge. Any suggestions? Im still pretty new to pcp.

The most logical thing is a sudden pressure drop may have possibly damaged the gauge. I'd think a new gauge is in order and as noted use the lower pressure reading until that is done.

gotcha thanks

 

[airgunfans]

The most logical thing is a sudden pressure drop may have possibly damaged the gauge. I'd think a new gauge is in order and as noted use the lower pressure reading until that is done.

Umm... not sure if that's really logical. Bleeding the valve after filling also results in sudden pressure drop but I don't see anything happening to the gauge of my YH

 

[NickNorthGA]

Is the gauge thread m10? Just seems odd to me but hey a $10 gauge will at least rule out one thing.

 

[Eaglebeak]

Is the gauge thread m10? Just seems odd to me but hey a $10 gauge will at least rule out one thing.

Yes, M10x1. 

 

[ackuric]

You would err on the side of caution by using the HIGHER fill gauge as what you assume the system to be at...using the LOWER of the two means that if its the incorrect gauge of the two, that you're potentially OVERFILLING....



Derp

 

[Why]

That's right! But what I meant was to Go by the gun manometer. But that kinda doesn't sound right now does it? Now that you mention it! Just don't fill anything until the YH manometer is replaced OR verify calibration variance difference by using several other (several different) guns! That's what he should do! 

 

[stoti]

Good catch Matt, that could have been bad news!

Stoti

 

[Glem.Chally]

Try giving the guage a couple knocks with a wrench. Don't ask me why

Mine has been acting up a bit but always use the fill station gauge anyways. A couple knocks has fixed it temporarily. 

 

[bandg]

The most logical thing is a sudden pressure drop may have possibly damaged the gauge. I'd think a new gauge is in order and as noted use the lower pressure reading until that is done.

Umm... not sure if that's really logical. Bleeding the valve after filling also results in sudden pressure drop but I don't see anything happening to the gauge of my YH

You could be right, but the OP stated the filter o-ring was blown out but seemed intact. Such a loss of pressure seems like it could occur faster than a normal bleed. In any event, if part of the o-ring blocking a passage isn't the problem, what would you consider as the most likely cause of the difference considering that they seemed to happen concurrently?

 

[bandg]

You would err on the side of caution by using the HIGHER fill gauge as what you assume the system to be at...using the LOWER of the two means that if its the incorrect gauge of the two, that you're potentially OVERFILLING....



Derp

Quite true, thanks for noting. Seems that the OP might be able to tell if the fill is actually matching the gun gauge (lower reading) by any change in shot count.

 

[NickNorthGA]

the gun is at 3500 or so it says. I am off tomorrow and I'm going to shoot so I will see what she does over a chrony when it starts to get near reg pressure and keep track of shot count. I def wont fill past 4500 on YH side. Another gun filled up is around 800 psi less so Im pretty sure its the YH gauge but have to be safe with HPA

 

[bandg]

"but have to be safe with HPA". Absolutely. All the time. And it's good Ackuric pointed out the error. Be safe and I hope it's just a faulty gauge.

 

[lenweber2]

Take the filter out of the system and see. But agree new guage is EZ. Also if the gun gets about the same mumber of shots that gauge is most likely ok. Got a second gun to check or tank with gauge?