Zeagle F8 whistling

[Jherny]

Hi, I have a Zeagle F8 setup just serviced that has been whistling and shop doesn't find anything wrong with it. 2 dives ago it was whistling the entire dive while breathing fine and I had the shop look at it but they didn't find anything just made sure things were lubed up. This last dive it was intermittent but still whistling, again it breathes fine i played with the adjustment knob and lever and nothing changes the whistling.

Any idea what it could be?

 

[lexvil]

Hi pitched when taking a normal breath? No noise going real slow or real fast?

have you decided if its a first or second stage noise? Do you know your IP pressure?

 

[Jherny]

Hi pitched when taking a normal breath? No noise going real slow or real fast?

have you decided if its a first or second stage noise? Do you know your IP pressure?

Yeah high pitched during normal breath, and fast breath, not so much during slow. Can’t tell if it’s 1st or 2nd stage. Originally I thought it was 2nd but I hear something on 1st outside the water

 

[lexvil]

Yeah high pitched during normal breath, and fast breath, not so much during slow. Can’t tell if it’s 1st or 2nd stage. Originally I thought it was 2nd but I hear something on 1st outside the water

Usually something like a rapid pressure change across a sharp surface, do you have another first stage to try the second on to help isolate the source.

 

[tridacna]

Yeah high pitched during normal breath, and fast breath, not so much during slow. Can’t tell if it’s 1st or 2nd stage. Originally I thought it was 2nd but I hear something on 1st outside the water

Use your octo. If you still hear it, it's the first stage.

 

[lexvil]

Use your octo. If you still hear it, it's the first stage.

Or both seconds

 

[Jherny]

Yeah i

Use your octo. If you still hear it, it's the first sta

Use your octo. If you still hear it, it's the first stage.

Yeah it’s definitely 1st stage. I took it back to the shop and was told the “pin” may not be seating properly so they lubed it up some to see if it helps because it looks straight. Next thing would be to replace the “pin”