Inside the Tekna Regulator

[Fibonacci]

All gone now... fun to tinker but too hard to get parts for the iconic second stage, esp reliable LP servo seals.
I've moved on to the Poseidon Cyklon and Jetstream now for my side exhaust fix

 

[Fibonacci]

Do you still dive with the Tekna I only ask as I have just found my old red one and it is still in as new condition, it has been sealed and stored for about 40 odd years, (forgot I had it in a safe place). I live in Victoria and I will be testing it out very soon. I am still looking for the 1st stage I also put it in a very safe place. I have not seen another Red one. If I have any problems it would be great if I could contact someone Local to get advice. my email is sjpatto@bigpond.com. Cheers Steve

Without a supply of NOS parts esp the tiny LP servo tilt valve seals I doubt you can safely dive your Tekna 2100 second stage again... the seals degrade into sticky goo leaving only the support cup.

I was told 1 x 1.15mm o-rings may work to replace the tiny LP tilt valve seals but I never got to try them out.

1mm CS X 1.15mm ID (NBR) Buna-N 70 Duro Metric O-Ring [N1.00X001.15] : The O-Ring Store LLC, We make getting O-Rings easy!

The O-Ring Store LLC 1mm CS X 1.15mm ID (NBR) Buna-N 70 Duro Metric O-Ring [N1.00X001.15] - Cross Section "CS" X Inside Diameter "ID" Metric O-Rings Buna-N 70 Duro (NBR): The most commonly used elastomer for sealing products. Nitrile, also known as Buna-N or NBR, is a copolymer of Butadiene and...

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I bought mine new back in the day and used to love how it breathed so effortlessly at depth... took it to 52m on the President Coolidge.
After parts dried up mine, like yours, ended up stored for decades in a forgotten corner of the garage!

 

[2stroketony]

Do you still dive with the Tekna I only ask as I have just found my old red one and it is still in as new condition, it has been sealed and stored for about 40 odd years, (forgot I had it in a safe place). I live in Victoria and I will be testing it out very soon. I am still looking for the 1st stage I also put it in a very safe place. I have not seen another Red one. If I have any problems it would be great if I could contact someone Local to get advice. my email is sjpatto@bigpond.com. Cheers Steve

Patto51
There are a few of us that maintain our 2100s.
I can supply you with all the parts you need to include brand new pilot levers with gasket, main valves and I rings.
Tony