The New Atomic TFX
- Thread starter rsingler
- Start date
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Pending RSingler's approval/improvements, sure... you may have to remind me though (for some reason I always have way too many irons in the fire!). My biggest concern is with the 3 pin spanner... the pins are stainless rod, but they are set into a printed handle. I worry that a corroded/not well maintained cap will take more torque than the printed plastic can handle. I have a couple alternatives in mind, but it requires more tooling and time to make.
And yes, I know I have a problem, lol!
OP
@Pressurehead is right. The angle of the tips is wrong for a good engagement. The spread is barely enough.
The cap is titanium set into the case plastic with a collared o-ring seal. Since the titanium isn't subject to verdigris, the only way it will jam is previous overtorque or sand. I think @James79 's tool will be fine, or the pictured face spanner.
I got my face spanner pin wrench.
Do I need another special special tool to actually adjust the cracking pressure? For some reason I was thinking I just need a slotted screwdriver after I get the cap off.
Do I need another special special tool to actually adjust the cracking pressure? For some reason I was thinking I just need a slotted screwdriver after I get the cap off.
OP
I would go for @James79 's tool. Yes, a 6mm slotted screwdriver works just fine. But the plastic is soft, and if your adjuster gets stiff over time, and some of the D400's did, the off-center application of force will scratch the plastic and score the slot. You can see the scuffs I've put in mine already, just messing around...
Geo7
Contributor
OP
I don't know yet. I haven't had time to get to housing disassembly and eval. I've only pulled the poppet out once, and haven't yet evaluated the floating seat. If I had to guess, it might be a way to improve alignment of the poppet during movement. But, I don't know.
Geo7
Contributor
Perhaps they found alignment was causing the D400 to be hard to tune, in addition to spring-winding*?
*(For those unfamiliar with these regs: A lot of it was covered here: How to restore a Scubapro D300, D350 & D400: Theory and Practice)
*(For those unfamiliar with these regs: A lot of it was covered here: How to restore a Scubapro D300, D350 & D400: Theory and Practice)
Thanks. I'm hoping James' tool is ready soon - and that I have my TFX even sooner.
I'm fairly handy. I'll get by with a screwdriver for an initial setup. I expect this to be my last single tank reg and last me the rest of my dive life. It's going to get beauty marks. I'm not going to sweat it too much if my adjuster looks like yours. It can't even be seen, normally. No blood, no foul.
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