Adjusting Cyclon Regs

greg@thedenehys.com wrote:
> Hi,
>
> I was reading a post on the newsgroups about the cyclone second stages.
>
> It said that the venturi tube adjustment is critical. I have been
> fiddling with mine thinking it wasn't!
>
> Are you able to tell me how to adjust it to its correct setting?
>
> Also, another thing you may be able to advise on - when I breathe
> gently, there is not a lot of air coming out. I have to suck a lot
> harder than I like. I used to adjust the nut that changed the spring
> tension or lever height on my scubapro 190's and could make them
> breathe just the way I like them. Is there a way to do the same thing
> on these regs, or do you need to change the spring or something, or
> just up the IP?
>
> These are new regs. The guy I bought them off has only just been
> factory trained, and is not the best source of info. I am also
> interested in knowing how it all works anyway.
>
> Thanks a million for your help
>
>
>
>
>
> Cheers,
>
> Greg
>

These things will breathe like a dream if adjusted properly. And doing
it right on these beauties is not rocket science (although some service
"techs" can't seem to get it right).

Take off the hockey puck and the body from the hose. If you hold it
with the hose end down, the operating lever should come pretty much to
the edge of the housing. If not there, it is adjusted wrong. Adjust as
necessary. Then, when assembled, put air to it and purge. If it free
flows, the deflector needs adjustment. The deflector inside should be
turned as close to the mouth tube as possible but just until it doesn't
free flow any more. If it points at the mouthpiece, it will free flow.
If it points into the body, it will create a back pressure and make it
a hard breather.

If you get a slow constant hiss after all this, you most likely have a
shot seat or cone in which case some polishing or parts replacement is
called for.

Easy!

Just my $.02

--

Ray Contreras
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Webmonkey for:
http://www.ossystems.com
http://www.bobs-garage.com
http://www.clanwolverine.org
http://www.rayzplace.com

greg@thedenehys.com wrote:
> Hi,
>
> I was reading a post on the newsgroups about the cyclone second stages.
>
> It said that the venturi tube adjustment is critical. I have been
> fiddling with mine thinking it wasn't!
>
> Are you able to tell me how to adjust it to its correct setting?
>
> Also, another thing you may be able to advise on - when I breathe
> gently, there is not a lot of air coming out. I have to suck a lot
> harder than I like. I used to adjust the nut that changed the spring
> tension or lever height on my scubapro 190's and could make them
> breathe just the way I like them. Is there a way to do the same thing
> on these regs, or do you need to change the spring or something, or
> just up the IP?
>
> These are new regs. The guy I bought them off has only just been
> factory trained, and is not the best source of info. I am also
> interested in knowing how it all works anyway.
>
> Thanks a million for your help
>
>
>
>
>
> Cheers,
>
> Greg
>

These things will breathe like a dream if adjusted properly. And doing
it right on these beauties is not rocket science (although some service
"techs" can't seem to get it right).

Take off the hockey puck and the body from the hose. If you hold it
with the hose end down, the operating lever should come pretty much to
the edge of the housing. If not there, it is adjusted wrong. Adjust as
necessary. Then, when assembled, put air to it and purge. If it free
flows, the deflector needs adjustment. The deflector inside should be
turned as close to the mouth tube as possible but just until it doesn't
free flow any more. If it points at the mouthpiece, it will free flow.
If it points into the body, it will create a back pressure and make it
a hard breather.

If you get a slow constant hiss after all this, you most likely have a
shot seat or cone in which case some polishing or parts replacement is
called for.

Easy!

Just my $.02

--

Ray Contreras
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Webmonkey for:
http://www.ossystems.com
http://www.bobs-garage.com
http://www.clanwolverine.org
http://www.rayzplace.com

> Take off the hockey puck and the body from the hose. If you hold it
> with the hose end down, the operating lever should come pretty much to
> the edge of the housing. If not there, it is adjusted wrong. Adjust as
> necessary.

Seems as easy to adjust as I would have thought.

2 questions tho - whats the 'hockey puck'? The nut that holds the guts
into the reg body?

Most importantly, how do you adjust the lever arm? I cannot see any
way to adjust it.

> Take off the hockey puck and the body from the hose. If you hold it
> with the hose end down, the operating lever should come pretty much to
> the edge of the housing. If not there, it is adjusted wrong. Adjust as
> necessary.

Seems as easy to adjust as I would have thought.

2 questions tho - whats the 'hockey puck'? The nut that holds the guts
into the reg body?

Most importantly, how do you adjust the lever arm? I cannot see any
way to adjust it.

> whats the 'hockey puck'?

Looking at it, I guess it is the part that looks like a hockey puck :)
The part the diapraghm is in.

> whats the 'hockey puck'?

Looking at it, I guess it is the part that looks like a hockey puck :)
The part the diapraghm is in.

My levers are a little higher than the body (maybe 2mm)
Will this cause less air to flow when I am only sucking gently?

My levers are a little higher than the body (maybe 2mm)
Will this cause less air to flow when I am only sucking gently?

By the way, they crack very well, with just a tiny bit of pressure.

By the way, they crack very well, with just a tiny bit of pressure.