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Post by nikeajax on Jan 14, 2019 9:03:05 GMT -8
Phil, I'm glad you're doing this as A: you're enjoying it B: you're working on one of the "why bother" regs. I have a Dacor Dart that is easily the doggiest reg I've tried: it's the kind of reg that Jack LaLanne would use to strengthen his lungs! JB
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Post by vance on Jan 14, 2019 10:17:30 GMT -8
Phil, I'm glad you're doing this as A: you're enjoying it B: you're working on one of the "why bother" regs. I have a Dacor Dart that is easily the doggiest reg I've tried: it's the kind of reg that Jack LaLanne would use to strengthen his lungs! JB Yeah, the R-3 is a dog. I'm doing this restoration because I can, and I always feel compelled to fix an "injured engine". It's interesting, too. Doesn't every regulator deserve to be loved?
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Post by Deleted on Jan 14, 2019 10:48:51 GMT -8
I have a Dacor Dart that is easily the doggiest reg I've tried: it's the kind of reg that Jack LaLanne would use to strengthen his lungs! JB I have a Daco Dart. Cover looks cool, like the R series dbl hoser ex. cover. Leaks air like crazy and Im hoping to get inside to see why before Spring. Might actually try to dive it just for the punishment ;-)
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Post by nikeajax on Jan 14, 2019 10:52:26 GMT -8
As soon as Dacor changed their nozzle to a real second stage directing the flow down the air horn that, that helped a whole lot. But, when they went from the Dart... to their Olympic-series it was a quantum-leap in breathing characteristics. JB
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Post by Deleted on Jan 14, 2019 10:56:42 GMT -8
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Post by nikeajax on Jan 14, 2019 10:57:07 GMT -8
I have a Daco Dart. Cover looks cool, like the R series dbl hoser ex. cover. Leaks air like crazy and Im hoping to get inside to see why before Spring. Might actually try to dive it just for the punishment ;-) Howard, if you haven't had it out yet, please pool test it: they perform like the Healthways tilt-valve Scuba Star do with old diaphragms. Unfortunately, unlike the HW's, a new diaphragm isn't going to help... AT ALL!JB
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Post by nikeajax on Jan 14, 2019 10:57:57 GMT -8
Those are realllllly nice to look at, but...
JB
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Post by Deleted on Jan 14, 2019 10:59:23 GMT -8
Got it in a trade with a bunch of stuff and it looks interesting but kinda small"ish" like all the early dacor stuff
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Post by SeaRat on Jan 14, 2019 14:51:15 GMT -8
I have one of these Dacor Dart regulators, and have dived them in the past. As Jaybird says, it is not the best breathing regulator, but I have had it in open water without dying. Because of the double lever downstream valve, it has a peculiar way of breathing where there is a bit of hesitation between the initiation of breathing and actual air passing through the regulator. Part of that was the diaphragm, and part the linkages. The first stage is pretty good. The second stage exhalation valve is also too small. Dacor claimed it had put this regulator through chamber testing down to, I think, 1000 feet. But it did not successfully challenge either AMF Voit, USD or even Healthways regulators. Therefore, Dacor went back to the drawing board for the Olympic series, which in the lower priced version I think used the same first stage. That first stage is an unbalanced diaphragm, which performed best at lower tank pressures and was continued (although advanced to a balanced version) all the way through until Dacor was bought by Mares. John
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Post by nikeajax on Jan 14, 2019 15:20:11 GMT -8
...As Jaybird says, it is not the best breathing regulator, but I have had it in open water without dying... John Nuuuh-uh John, you so did too! So was this, before, during or after you were a PJ My point was to test it in a pool because it's performance, and lack there of, might surprise the doo-doo out of you if you're only familiar with decent breathing regs... JB
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Post by SeaRat on Jan 14, 2019 17:55:04 GMT -8
...As Jaybird says, it is not the best breathing regulator, but I have had it in open water without dying... John Nuuuh-uh John, you so did too! So was this, before, during or after you were a PJ My point was to test it in a pool because it's performance, and lack there of, might surprise the doo-doo out of you if you're only familiar with decent breathing regs... JB JB, I have had these regulators in the water recently, and also in the 1970s. Here's my collection (I looked this afternoon to see my Dacor Dart, and then remembered that I also have a Dart II regulator). I put my Dart on a tank, and it was not breathing very well, as you reported. It also has a slight HP leak, which I'm not going to fool with right now. But it does provide adequate air for most situations. Now, about the Dart II; it is a much better breathing regulator, as it has a metal insert in the mouthpiece that causes it to have a Venturi effect that the Dart did not have. The down-side of this is that it at times sort of "whistles." I have somehow put a silicone diaphragm into this regulator, and it breathes pretty well. On par with the Calypso/Conshelf of the same period. This is my Dart II, and it has a silicone diaphragm and also a venturi pathway. Dacor tried hard to make this regulator work. They also made different first stages for it, which I have drawings of in my Dacor maintenance manual. Here's that venturi path in the mouthpiece of my Dart II: This makes it breath quite well. With the silicone diaphragm (I think I cut down a Healthways or some other diaphragm and put notches into the diaphragm for the screw holes) I would dive it in the Clackamas River in high current (although the whistling was distracting). John
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Post by vance on Jan 15, 2019 18:37:38 GMT -8
I just got a box of DH Dacor parts from AntiqueDiver. The parts are most of a very nice C-3 (which is now complete and in excellent cosmetic/functional shape) and one which is now most of a less nice C-3, minus the second stage, lp seat carrier, and the lever that touches the diaphragm.
There was also most of an R-3, which is missing the second stage orifice ( I made one), HP pin, the demand lever w/o the LP seat, an HP diaphragm, HP diaphragm spring, and lever pins. This one might get experimented on for a new kind of second stage.
I used to only need a couple of parts. Now that I've got more parts, I need hella more parts! Does anyone have some spares floating around?
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Post by nikeajax on Jan 16, 2019 14:53:38 GMT -8
So what exactly are ya lookin' fer?
JB
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Post by vance on Jan 16, 2019 18:35:51 GMT -8
I just got a box of DH Dacor parts from AntiqueDiver. The parts are most of a very nice C-3 (which is now complete and in excellent cosmetic/functional shape) and one which is now most of a less nice C-3, minus the second stage, lp seat carrier, and the (upper) lever that touches the diaphragm. I got them and the C-3 is now complete.
There was also most of an R-3, which is missing the HP pin, the demand lever w/o the LP seat, an HP diaphragm*, HP diaphragm spring, and lever pin. I used to only need a couple of parts. Now that I've got more parts, I need hella more parts! Does anyone have some spares floating around? And the HP valve brass body ring. Should have said washer!*I actually need a couple of R-3 HP diaphragms. Got these, too! So now the R-3 is closer to completion.OR I need to find someone who wants these uncompleted regs, so I don't have to deal with them!
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Post by nikeajax on Jan 17, 2019 9:46:38 GMT -8
Phil, could you use some of that famous glue of yours to augment the one in the middle? It's urine (yours) if'n ya wants it! JB
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