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Post by diverdon on Feb 29, 2016 11:35:18 GMT -8
I found a nice Tekna regulator that looks to be in fairly good condition. I'd like to get this one in dive shape so I'd like to get the advice of any here who are familiar or who dive this brand of regulator. I know parts are scarce and have read where the previous owner of Tekna may have "disposed" of any parts left in inventory when they closed their doors. That would be a pity if it were true. I read they stutter some in shallower depths but really come into their own once deeper than 20 or 30 feet. Does anyone have first hand knowledge of this? As far as parts are concerned I may need a lp seat as well as an exhaust diaphragm as the one in it looks kinda crispy. Also, does anyone have a diagram for these? I've also read somewhere that the first stage is very similar to a SP MK5 or 10. Is this true? Thanks in advance! DD
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Post by diverdon on Feb 29, 2016 12:17:34 GMT -8
I checked VDH and they have an 18pg pdf with an exploded view and trouble shooting guide. I downloaded that so I have something to go by. Reading the basic trouble shooting reminded me of something I read about a single grain of sand giving someone grief with theirs. I believe it was on Scubaboards but can'd be sure. Gotta wait for the westies to wake up and comment DD Czech out the sand. This was my first indication there may be trouble...
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Post by regulator68bj on Feb 29, 2016 14:09:50 GMT -8
Hi DD E-mail me and will forward from various sources who have in the past serviced the "Tekna" 2100 unit.
litremeter@talktalk.net
john 68
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Post by diverdon on Feb 29, 2016 14:23:29 GMT -8
You got it John.
DD
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Post by SeaRat on Feb 29, 2016 14:38:20 GMT -8
DD, I have never used one, but being a pilot valve I imagine getting sand into the pilot mechanism could cause problems.
This looks like a neat project, and I cannot wait for you to get it into the water and report back!
John
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Post by cnotthoff on Feb 29, 2016 22:39:47 GMT -8
Very cool 2nd stage. I've never seen one chromed like that. They have a servo valve that in most versions is opened by a tilt valve. During the last days of Tekna, they converted to a rather complicated downstream valve. Any sand near the main valve diaphragm (no not the diaphragm) will make it leak. There are a few tricks with this reg.
Good Dives,
Charlie
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Post by scubadiverbob on Mar 1, 2016 15:06:44 GMT -8
They are nice to look at ... I'll never dive with one again !!!! When they fail, and they will at depth, you'll wish you had a DA or RAM ..... ask yoursellf, why did tekna go out of business so fast, when they made such cool little knives?
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Post by scubadiverbob on Mar 1, 2016 15:15:00 GMT -8
Be very, very, careful when taking the second stages apart and putting back together. They are made with cheap, light weight, plastic and are notorious for cracking and cross threading ....
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Post by diverdon on Mar 1, 2016 15:53:40 GMT -8
Be very, very, careful when taking the second stages apart and putting back together. They are made with cheap, light weight, plastic and are notorious for cracking and cross threading .... I read that the earlier version, like this one, has more brass, and that the later models incorporated more plastic and are considered cheaper. This I read on the Internet so it has to be true I'll take the second stage apart when I have time and the schematics in front of me. Hopefully a little cleaning is all they need and that the diaphragms are in decent shape. I'll be sure to take pics of what I find. DD
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Post by nikeajax on Mar 2, 2016 8:44:16 GMT -8
This I read on the Internet so it has to be true DD Just like big-foot--right? I have one of the newer plastic ones: I'd like to make a sleeve out of stainless steel to epoxy in where the old plastic sleeve has fractured. Jaybird
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Post by nikeajax on Mar 2, 2016 8:46:27 GMT -8
Wait, not a plastic big-foot, but a plastic Tekna!!!!! JB
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Post by diverdon on Mar 2, 2016 9:31:24 GMT -8
Wait, not a plastic big-foot, but a plastic Tekna!!!!! JB Yeah, I'd like to see you just try that. "Come here big fella. Don't be afraid. I just wanna..." OUCH!!!! LOL You really are out there little buddy I did have it apart last night but it was getting late and I didn't have my camera handy. I suspect there is a little sand in between the pilot lever and the valve body. It sure is an interesting design. The inhalation diaphragm looks to be in great shape and is very pliable as well as the rubber seal ring. I have a good feeling about this regulator. I find most of the regs from the midwest this way DD
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Post by nikeajax on Mar 2, 2016 9:40:31 GMT -8
Oh, hey, when are ya gunna post some images of that HW-B, and Airflow? Don't make me grovel, cuz ya know I will... JB
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Post by Deleted on Mar 2, 2016 11:18:41 GMT -8
I have had one since the mid 80's.......bought it because the plastic mouthpiece was lighter than any single hose on the market at that time...and I could no longer get parts (mushroom and duckbill valves) locally for my Royal AM so I bought it........it does stutter in shallow water if one takes deep breaths......short shallow breaths reduces the tendency.......however, I never could over breath it in heavy current or at depth..I consider it one of the best single hose regs ever made.........that being said.....it is like the early M16 rifles......you have to keep it clean, no sand particles or it will free flow...only had that problem once and I used it for over 20 years as my only reg......the main diaphragm housing must be tightened down correctly after cleaning or it will not breath correctly.........the LP hose is stiff and will pull it out of your mouth if one is not paying attention...........mine finally cracked in 2003 but that was remedied with a touch of glue......that is how I discovered that the diaphragm housing must be screwed all the way against the body.
After I learned that the manufacturer destroyed all his spares, I bought a spare off ebait, just in case I needed parts.........but then I found this site and (gag) the other site and could restore my Ram...........haven't used my Tekna 2100B in several years.
oldmossback
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Post by nikeajax on Mar 2, 2016 11:51:38 GMT -8
DD, nice tie BTW; I love paisley I just got a few old ties from the 1950's this weekend... Michael, I was hoping you'd chime in on this one, as you're the only person I know that has one as well as something positive to say about them: vive la différence!Jaybird
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