Poseidon Cyklon Service Advice
- Thread starter Erik22
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WOB looks like it meets the current CE standard all the way to 165 feet. This from a regulator introduced decades ago. Pretty damned cool.
Sorry for the late response, here are some updates on the project:
I was able to remove the yoke adapter from the din setup by putting the din screw in my vice equipped with soft jaws. I put a wrench on the yoke adapter and it came off with very little force. Just had to get some leverage!
I received another Cyklon today which is in good condition as well. Second stage disassembled no problem. Some little goober mustve either used an impact wrench or just been an idiot and destroyed the threads on one port. I think the first stage was a 2801, the balance chamber at the bottom was what I used to identify it in the schematics.
I’ll just break down the first stage into parts and try to repair the Cyklon 2305 first stage.
At least the second stages are functioning and able to be repaired with relative ease. Some new seats and diaphragms as well as orifices should make them good as new.
At this point, I’ll throw the Cyklon seconds onto a Conshelf Supreme and tune the IP. That’ll be a combo good enough for the coldest Canadian waters.
Erik
I was able to remove the yoke adapter from the din setup by putting the din screw in my vice equipped with soft jaws. I put a wrench on the yoke adapter and it came off with very little force. Just had to get some leverage!
I received another Cyklon today which is in good condition as well. Second stage disassembled no problem. Some little goober mustve either used an impact wrench or just been an idiot and destroyed the threads on one port. I think the first stage was a 2801, the balance chamber at the bottom was what I used to identify it in the schematics.
I’ll just break down the first stage into parts and try to repair the Cyklon 2305 first stage.
At least the second stages are functioning and able to be repaired with relative ease. Some new seats and diaphragms as well as orifices should make them good as new.
At this point, I’ll throw the Cyklon seconds onto a Conshelf Supreme and tune the IP. That’ll be a combo good enough for the coldest Canadian waters.
Erik
Does anyone happen to have a spare pin for the Cyklon 300 laying around? It is part 2182, position 7 on the diagram. Interestingly it is labeled as a valve needle. PM me if you have one and we can work out a deal for the pin.
Erik
Erik
IslandKraut
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IslandKraut
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I bought the "press" tool from divestore in Estonia when they were still legit... BUT before, I used a short wide flat screwdriver, BUT rested the metal housing in the second stage exhaust (but upside down) . Start in the middle of the clip and work around each side. You can also start on one side and work around, but I found the diaphragm might sit a little bit off center when doing that. And yes - wear leather gloves...There's also a cheaper route, through Scuba Clinic, that was reviewed, earlier this year:
Hand Press for Poseidon Cyklon Second Stage . . .
Scuba Clinic, of Thailand, has come up with a lightweight (210 gram), comparatively inexpensive (about US 70.00) alternative to Poseidon's 1.3 kilo, multi-hundred dollar "Assembly Tool," — both aimed at simply installing a 1.5 gram “locking ring” on a Cyklon second stage. It is composed of...scubaboard.com
Some can also manage to use a flat screwdriver or dissecting probe to fit the ring. I was shamed into trying it again, a while back, successfully; but managed to bloody myself once or twice . . .
Is that a 40mm gasmask / full face adaptor tube?? And if so - where do I get one?
Hold that thought - the ejector sleeve on the lower 2nd stage valve looks like metal - what's up with that?
(same comment as above - where to get one or 5)... ?
Yes, that was what was once known as an "exchanging mouthpiece for a full-face mask (#1216)," with "gas-mask thread," which predated Poseidon's own Atmosphere FFM by years; and, ironically could never be used with it. I had it attached to a black rubber mask, of some Eastern European make, which has since rotted; though a friend has since told me that it can still be used with ScubaPro's FFM. So far as I know, 1216 hasn't been available for decades; and when last I saw it advertised, it was in an older user's manual for the Cyklon 300 -- and those were discontinued, back in 1993.
That ejector sleeve was, once, indeed metal; though I don't precisely know when Poseidon went with that white then black plastic alternative. It was affixed in a similar fashion, but was held on and kept in proper tension, by a blind-screw sized o-ring, at the tip. That second stage, I believe, dated from the late 1960s; and works just as well as any Cyklon second stage manufactured today . . .
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