KISS ADV issue

Marvintpa · 16th May 2008, 15:30

Is there a condition that would cause a KISS Classic ADV to breathe fine on the surface but become quite hard to suck gas through once submerged?

Andy Del · 16th May 2008, 16:50

Quote: (Originally Posted by Marvintpa)

Is there a condition that would cause a KISS Classic ADV to breathe fine on the surface but become quite hard to suck gas through once submerged?

Ah, the twitchy ADV strikes again! I can think of three. Firstly, if the ADV diaphragm is distorted, and it can resist firing. Then, the old seat assemblies (which I still use as it's just fine) have the possibilty of the O-ring to become unglued resulting in both free-flowing or no-flowing. Or lastly, your IP on the dil reg is too high and the ADV is an upstream valve. So, as the depth increases, the line pressure builds (on Apeks regs) and it gets harder to fire the adv.

I'd check the line pressure, then the seat, then open up the diaphragm and have a squizz...

Hope that helps!

cheers

Andy

Numpty diver · 16th May 2008, 17:13

Hi lots of problems with my adv when i bought my sk second hand.
The Best advice i was given ,,,..was to change all the adv parts for new , even the screws.
30+ houirs on the unit without any problems

Dean

Marvintpa · 16th May 2008, 17:34

The IP on the reg is right on the money, no issues there.
Guess I'll be ordering some new parts.

lizardland · 16th May 2008, 18:20

I had this on sunday in a cave in the Dales. Fine on the surface, dead as disco dropping down the entry shaft. I took it apart later and the valve seat had become dislodged. Not bad for three years of diving though.

cameron · 18th May 2008, 04:00

I have had this same problm when I first got the unit. It ws a bad o-ring on the ADV .

When replacing it, be sure that you use a brush to put the crazy glue on the stem THEN carefully place the o-ring. Any contamination on the o-ring will cause a free flow.

Drill a small hole in a piece of material that crzay glue will not bond to; something like nylon. Slide the ADV stem through the hole and seat the o-ring on the stem. It will give you a consistet surface to put preasure on the o-ring.

I chewed through 3 o-rings before Gordon clued me into this tip.

Cam

Mike Costanzo · 28th May 2008, 13:07

Cameron, Thanks for the tip. I usually have major issues with anything I use crazy glue on!

16th May 2008, 15:30	#1 (permalink)
Marvintpa Bad knees, matching brain Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Mar 2005 Location: Ontario, Canada Posts: 233	KISS ADV issue Is there a condition that would cause a KISS Classic ADV to breathe fine on the surface but become quite hard to suck gas through once submerged?
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16th May 2008, 16:50	#2 (permalink)
Andy Del Classic KISSer Current Rebreather/s: Sport Kiss Classic Kiss Other Rebreather/s: Join Date: Feb 2005 Location: Australia, Sunny Sydney Posts: 391	Re: KISS ADV issue Quote: (Originally Posted by Marvintpa) Is there a condition that would cause a KISS Classic ADV to breathe fine on the surface but become quite hard to suck gas through once submerged? Ah, the twitchy ADV strikes again! I can think of three. Firstly, if the ADV diaphragm is distorted, and it can resist firing. Then, the old seat assemblies (which I still use as it's just fine) have the possibilty of the O-ring to become unglued resulting in both free-flowing or no-flowing. Or lastly, your IP on the dil reg is too high and the ADV is an upstream valve. So, as the depth increases, the line pressure builds (on Apeks regs) and it gets harder to fire the adv. I'd check the line pressure, then the seat, then open up the diaphragm and have a squizz... Hope that helps! cheers Andy __________________ Yellow - the colour of greatness!
(Online)

16th May 2008, 17:13	#3 (permalink)
Numpty diver Custom Title Allowed! Current Rebreather/s: Other CCR Dolphin Ray Home Build Other Rebreather/s: Other CCR Dolphin Ray Home Build Join Date: Jul 2006 Location: Norway, Bergen Posts: 198	Re: KISS ADV issue Hi lots of problems with my adv when i bought my sk second hand. The Best advice i was given ,,,..was to change all the adv parts for new , even the screws. 30+ houirs on the unit without any problems Dean
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16th May 2008, 17:34	#4 (permalink)
Marvintpa Bad knees, matching brain Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Mar 2005 Location: Ontario, Canada Posts: 233	Re: KISS ADV issue The IP on the reg is right on the money, no issues there. Guess I'll be ordering some new parts.
(Offline)

16th May 2008, 18:20	#5 (permalink)
lizardland Yak Current Rebreather/s: MK 15.X Home Build Other Rebreather/s: Classic Kiss Home Build Join Date: Mar 2005 Location: North... Posts: 1,189	Re: KISS ADV issue I had this on sunday in a cave in the Dales. Fine on the surface, dead as disco dropping down the entry shaft. I took it apart later and the valve seat had become dislodged. Not bad for three years of diving though. __________________ Can you imagine drifting along in the sea with your mouth open and a load of f***ing plankton going in? You'd like it, would you? www.westons-cider.co.uk Azerbaijani Association of Technical Divers Publicity Officer and Goat Wrangler
(Online)

18th May 2008, 04:00	#6 (permalink)
cameron Classic Kiss 124 Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Apr 2005 Location: Toronto, Ontario, Canada Posts: 245	Re: KISS ADV issue I have had this same problm when I first got the unit. It ws a bad o-ring on the ADV . When replacing it, be sure that you use a brush to put the crazy glue on the stem THEN carefully place the o-ring. Any contamination on the o-ring will cause a free flow. Drill a small hole in a piece of material that crzay glue will not bond to; something like nylon. Slide the ADV stem through the hole and seat the o-ring on the stem. It will give you a consistet surface to put preasure on the o-ring. I chewed through 3 o-rings before Gordon clued me into this tip. Cam __________________ Reclaim at work and CCR at home, life is good
(Offline)

28th May 2008, 13:07	#7 (permalink)
Mike Costanzo Never E nuff Current Rebreather/s: Classic Kiss Other Rebreather/s: Classic Kiss Join Date: Apr 2007 Location: Berlin,Md/Port Salerno,Fl - USA Posts: 117	Re: KISS ADV issue Cameron, Thanks for the tip. I usually have major issues with anything I use crazy glue on! __________________ Mike Costanzo CK #318
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