Nemrod Snark III LP diaphragm?

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Fibonacci

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I just don't log dives
I'm now turning my attention to the Nemrod Snark LP diaphragm...
Scuba Museum has recreated the exhaust valve in food grade silicone rubber:
Scuba Museum Nemrod Exhaust Valve

The original LP diaphragms were moulded from neoprene rubber, and are often found totally disintegrated on older 'Peacock' Snarks.

I was able to get a NOS example to 3D model with a view to getting a run produced in food grade silicone rubber, which should improve WOB as well as having a greatly extended service life.
The original diaphragm has a series of undercuts where the #202 plate fits, these should be able to be reproduced using a removable stripper plate on compression moulding. I have also reproduced the 'anti-stiction' stipples that were originally put in the OEM tool by hand!
Will need to talk to suppliers...
Snark III LP Diaphragm and plate.jpg
 
Hey thanks Graeme,
Please keep me in the loop. Mine was serviced before the previous owner put it up for consignment. It was evident as I always take new ( to me ) regs apart for a good cleaning, inspection, parts replacement if necessary and reassemble and test. This one was free of oxidation and new ‘phragm installed. It is nice to know that I can get these, especially the ‘phragms..much thanks…

Scott G. Bonser
 
Dies anyone have a Snark 3 schematic. Would like to have one or better yet the repair manual
Hi Mike, see attached PDF which covers both aspects for the Snark III Silver
 

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