It loses the vacuume, never had an issue.
MK17 environmental seal rattling/leaking
- Thread starter Scuba Scotty
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If there's a big bubble under the environmental seal, the transmitter won't be trapped as closely, and might rattle up and down a bit under the cap. At least that's my presumption.
OP
Scuba Scotty
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Thanks everyone, always nice to hear from Buddhasummer, Rsingler, and Lexvil - you guys are legends. I guess this is a non-issue, which is nice to hear. I'd prefer that the environmental seal did not lose vacuum, but whatever, I just wanted to know that it's not a malfunction.
I appreciate the kind words. On the other hand, I think it IS a minor malfunction. Even the big companies don't always get it right. At least this malfunction won't kill you.
OP
Scuba Scotty
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Definitely would be better if it held vacuum. Mine seems to lose vacuum overnight, not in a few months like you mentioned. There's a plastic washer between the end cap and the heatsink fins that the cap screws into. Should I ditch the plastic washer? Maybe that will give the cap better contact with the environmental seal?
Rob and Simon are legend, I’m just a troll 
a random thought on this, I don’t have a 17 to try it on but I’m wondering if a shim from a mk25 could go between the clear seal and the cap to put a little more squeeze on that silicone environmental seal?? Perhaps a touch of cristolube to stop binding as it’s tightened.
a random thought on this, I don’t have a 17 to try it on but I’m wondering if a shim from a mk25 could go between the clear seal and the cap to put a little more squeeze on that silicone environmental seal?? Perhaps a touch of cristolube to stop binding as it’s tightened.
It's just a decorative trim piece. Doesn't affect environmental cap pressure on the seal. Hang onto it, because, well, I don't know...
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Sorry Lex, but you are a legend.Rob and Simon are legend, I’m just a troll
a random thought on this, I don’t have a 17 to try it on but I’m wondering if a shim from a mk25 could go between the clear seal and the cap to put a little more squeeze on that silicone environmental seal?? Perhaps a touch of cristolube to stop binding as it’s tightened.
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