IDA-64 / IDA-72 Home Build (AKA "Assembly")

osiris · 4th April 2008, 05:42

Well, I finally got the valves out of the Russki shnuffski cylinders in the IDA-64 and IDA-72 today without too much drama. Kit needed: one of EITHER Dave Sutton's yank tank or a BIG vice and gas axe. I can't afford the fuel for Dave's truck and my mini is a bit light so gas axe and vice it had to be. We only needed to use a tiny bit of heat on the valve body though, and then with the tank in a vice, a spanner on the valve give it a smart tap with a "Persuader, Mk1, Infantry for the use of", and off they came. Of course, me and my tame engineer couldn't make it sound too easy so we swore a lot while we were working. The IDA-72 is the same as the 64 and 71 – Kleinkonisch. So now, gotta get an adapter so I can do a Hydro on them, give them a good scrubbing and get a set of valves from Martin at Tecme.

Got stuck into the IDA-64 Counterlung and the dreaded internal exhale loop and attachments. Glad I did. All of the attachments on my CL were tied up with bits of sisal string with ancient electrical tape that with a slight amount of moisture would have started rotting in no time at all. Off it all came - gonna steal one of Packhorse's ideas and get some food grade pipe and modern hose fittings.

This weekend going to work on getting the rivets and other knobs and what not on the cases to try to get a harness sorted. In the meantime, Martin at Tecme is working on some hose adapters for a set of cooper hoses for the IDA-64, aren't you Martin? Martin?

osiris · 4th April 2008, 06:07

Som pictures..... This lot is of the cylinders and the proposed layout in the units. In the IDA-64, I am going to use one of the original cylinders for O2 (I have 2 so will be able to swop without worrying about fills at an obscure dive site (like New Zealand really), and a dumpy O2 cylinder I had lying around that will make an excellent Dil cylinder. Both Kleinkonisch so will use the same valves for both units. I intend to use Apeks DS-4 first stages.........well, for the IDA-64 anyway. Haven't thought that far yet for IDA-72.

In the IDA-72 i am going to use the original Steel 2 Ltr cylinders, one for O2 and one for DIL for "normal" depths. For "Not Normal" depths, both will be O2 and DIL will be off board.

The two units are on a divergent path from now on. I'll try to post changes as and when they occur if you're interested.

osiris · 4th April 2008, 06:15

IDA-64 Counterlung pictures.....like Landrovers, I suspect no two IDA-64s were manufactured alike. Some people have posted pictures of their exhale plumbing with metal fittings, some with plastic, some with both and some with string and metal and plastic. Mine are string. The same string that granny used to tie her parcels with in 1892. It was as my daughter would say, soooo out of there.

Now I've pulled it to buts I have to make a decision about whether the exhale plumbing goes back in the bag, or goes on the outside like superman's undies.........In the menaitme, for those who have IDA-71 or IDA-64 and havn;'t taken it's clothes off yet, hope these are useful...

Packhorse · 4th April 2008, 06:17

Good one Dave. So the 64 has ali tanks and you got the valves out? Hmm that may change my plans some what.

I have been a working too. My IDA 71 is all but ready to dive as a CMF O2 Rebreather. Just need a hydro on my tank and some O2 plus a few minor finishing points to the pnuematics. I have changed my exhale pipe to the lung from food grade plastic to copper pipe with a fitting for O2 addition. It took a bit of silver soldering so I had to buy some solder and flux. Let me know if you need to use it.

osiris · 4th April 2008, 06:18

Finally, what the internal plumbing looks like without the CL in the way......

Beer bottle to give you an idea of scale only you understand.

The second pictures is the crap left over. Would you feel comfortable diving with your bits held together with that?

osiris · 4th April 2008, 06:25

Quote: (Originally Posted by Packhorse)

Good one Dave. So the 64 has ali tanks and you got the valves out? Hmm that may change my plans some what.

Yes, I was dismayed at the thought of having to spend 150K (real US money) on a Dave Sutton style truck, but then discovered the essential ingredient required for this sort of thing namely, an engineer. This was actually quite important as only engineers know which parts of what can be hit with the MK1 Persuader and what "Cherry Red" is - I thought that was a porn movie but no, apparently it isn't as I found out when I picked up the recently cherry redded but now removed, valve with my bare hands. See, I AM learning heaps with this here rebreather thingy.....

osiris · 4th April 2008, 06:30

Quote: (Originally Posted by Packhorse)

I have been a working too. My IDA 71 is all but ready to dive as a CMF O2 Rebreather. Just need a hydro on my tank and some O2 plus a few minor finishing points to the pneumatics. I have changed my exhale pipe to the lung from food grade plastic to copper pipe with a fitting for O2 addition. It took a bit of silver soldering so I had to buy some solder and flux. Let me know if you need to use it.

Good news, we have to catch up for a beer, er review and compare notes. I am dying to see your unit in action.....yes, if you have a bit of food grade pipe looking lost and lonely, please direct it my way....have you done neg and pos tests yet?

Packhorse · 4th April 2008, 06:53

I have some short pices of pipe but I need to get some more fittings from the same place so if you need a longer piece I can pick it up for you. But I think you may decide on something else so you can inject O2 into the pipe.
Pos and neg tests are all good.

osiris · 4th April 2008, 07:02

Quote: (Originally Posted by Packhorse)

I have some short pices of pipe but I need to get some more fittings from the same place so if you need a longer piece I can pick it up for you. But I think you may decide on something else so you can inject O2 into the pipe.
Pos and neg tests are all good.

There's no doubt I'll need the pipe, just a question whether I'll put it inside or outside of the CL. A small delrin block will provide the O2 injection, don't have an issue there.

I have to have a think about the dynamics of the internal vs external exhalation plumbing.

Anyone know why the Russians put the exhale loop inside the bag? Was it Convenience or was it science?

p.s. please yes, bnext tiem you go can you get me a metre of it? Also, what do they have in the way of stainless pipe clamps? Is there a site I can look at?

Packhorse · 4th April 2008, 07:32

I can still get 2 full breaths of air into the lung. I never checked before I rerouted the hoses but I would guess it would have been 2.5-3 lung fulls. With the lung removed from the case I can get 4 lung fulls of breath into it. I assume the '64 lung is a similar size.

4th April 2008, 05:42	#1 (permalink)
osiris RBW Member Current Rebreather/s: Inspiration Classic MK 15.X Other Rebreather/s: Sport Kiss Join Date: Feb 2006 Location: Auckland Posts: 346	IDA-64 / IDA-72 Home Build (AKA "Assembly") Well, I finally got the valves out of the Russki shnuffski cylinders in the IDA-64 and IDA-72 today without too much drama. Kit needed: one of EITHER Dave Sutton's yank tank or a BIG vice and gas axe. I can't afford the fuel for Dave's truck and my mini is a bit light so gas axe and vice it had to be. We only needed to use a tiny bit of heat on the valve body though, and then with the tank in a vice, a spanner on the valve give it a smart tap with a "Persuader, Mk1, Infantry for the use of", and off they came. Of course, me and my tame engineer couldn't make it sound too easy so we swore a lot while we were working. The IDA-72 is the same as the 64 and 71 – Kleinkonisch. So now, gotta get an adapter so I can do a Hydro on them, give them a good scrubbing and get a set of valves from Martin at Tecme. Got stuck into the IDA-64 Counterlung and the dreaded internal exhale loop and attachments. Glad I did. All of the attachments on my CL were tied up with bits of sisal string with ancient electrical tape that with a slight amount of moisture would have started rotting in no time at all. Off it all came - gonna steal one of Packhorse's ideas and get some food grade pipe and modern hose fittings. This weekend going to work on getting the rivets and other knobs and what not on the cases to try to get a harness sorted. In the meantime, Martin at Tecme is working on some hose adapters for a set of cooper hoses for the IDA-64, aren't you Martin? Martin?
(Offline)

4th April 2008, 06:17	#4 (permalink)
Packhorse Custom Title Allowed! Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Jan 2008 Location: Auckland New Zealand Posts: 106	Re: IDA-64 / IDA-72 Home Build (AKA "Assembly") Good one Dave. So the 64 has ali tanks and you got the valves out? Hmm that may change my plans some what. I have been a working too. My IDA 71 is all but ready to dive as a CMF O2 Rebreather. Just need a hydro on my tank and some O2 plus a few minor finishing points to the pnuematics. I have changed my exhale pipe to the lung from food grade plastic to copper pipe with a fitting for O2 addition. It took a bit of silver soldering so I had to buy some solder and flux. Let me know if you need to use it. __________________ There are no stupid questions, but there are a LOT of inquisitive idiots.
(Offline)

4th April 2008, 06:25	#6 (permalink)
osiris RBW Member Current Rebreather/s: Inspiration Classic MK 15.X Other Rebreather/s: Sport Kiss Join Date: Feb 2006 Location: Auckland Posts: 346	Re: IDA-64 / IDA-72 Home Build (AKA "Assembly") Quote: (Originally Posted by Packhorse) Good one Dave. So the 64 has ali tanks and you got the valves out? Hmm that may change my plans some what. Yes, I was dismayed at the thought of having to spend 150K (real US money) on a Dave Sutton style truck, but then discovered the essential ingredient required for this sort of thing namely, an engineer. This was actually quite important as only engineers know which parts of what can be hit with the MK1 Persuader and what "Cherry Red" is - I thought that was a porn movie but no, apparently it isn't as I found out when I picked up the recently cherry redded but now removed, valve with my bare hands. See, I AM learning heaps with this here rebreather thingy.....
(Offline)

4th April 2008, 06:30	#7 (permalink)
osiris RBW Member Current Rebreather/s: Inspiration Classic MK 15.X Other Rebreather/s: Sport Kiss Join Date: Feb 2006 Location: Auckland Posts: 346	Re: IDA-64 / IDA-72 Home Build (AKA "Assembly") Quote: (Originally Posted by Packhorse) I have been a working too. My IDA 71 is all but ready to dive as a CMF O2 Rebreather. Just need a hydro on my tank and some O2 plus a few minor finishing points to the pneumatics. I have changed my exhale pipe to the lung from food grade plastic to copper pipe with a fitting for O2 addition. It took a bit of silver soldering so I had to buy some solder and flux. Let me know if you need to use it. Good news, we have to catch up for a beer, er review and compare notes. I am dying to see your unit in action.....yes, if you have a bit of food grade pipe looking lost and lonely, please direct it my way....have you done neg and pos tests yet?
(Offline)

4th April 2008, 06:53	#8 (permalink)
Packhorse Custom Title Allowed! Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Jan 2008 Location: Auckland New Zealand Posts: 106	Re: IDA-64 / IDA-72 Home Build (AKA "Assembly") I have some short pices of pipe but I need to get some more fittings from the same place so if you need a longer piece I can pick it up for you. But I think you may decide on something else so you can inject O2 into the pipe. Pos and neg tests are all good. __________________ There are no stupid questions, but there are a LOT of inquisitive idiots.
(Offline)

4th April 2008, 07:02	#9 (permalink)
osiris RBW Member Current Rebreather/s: Inspiration Classic MK 15.X Other Rebreather/s: Sport Kiss Join Date: Feb 2006 Location: Auckland Posts: 346	Re: IDA-64 / IDA-72 Home Build (AKA "Assembly") Quote: (Originally Posted by Packhorse) I have some short pices of pipe but I need to get some more fittings from the same place so if you need a longer piece I can pick it up for you. But I think you may decide on something else so you can inject O2 into the pipe. Pos and neg tests are all good. There's no doubt I'll need the pipe, just a question whether I'll put it inside or outside of the CL. A small delrin block will provide the O2 injection, don't have an issue there. I have to have a think about the dynamics of the internal vs external exhalation plumbing. Anyone know why the Russians put the exhale loop inside the bag? Was it Convenience or was it science? p.s. please yes, bnext tiem you go can you get me a metre of it? Also, what do they have in the way of stainless pipe clamps? Is there a site I can look at?
(Offline)

4th April 2008, 07:32	#10 (permalink)
Packhorse Custom Title Allowed! Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Jan 2008 Location: Auckland New Zealand Posts: 106	Re: IDA-64 / IDA-72 Home Build (AKA "Assembly") I can still get 2 full breaths of air into the lung. I never checked before I rerouted the hoses but I would guess it would have been 2.5-3 lung fulls. With the lung removed from the case I can get 4 lung fulls of breath into it. I assume the '64 lung is a similar size. __________________ There are no stupid questions, but there are a LOT of inquisitive idiots.
(Offline)

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