Nihon USD Sea Frontier 71

[buddhasummer]

Trying to get this reg on auction, I'm pretty sure it was a Japan only model. If I win I'll disassemble and take photos if anyone's interested. Don't need another reg but am curious how it compares to the KM Superflow 305-175.

 

[buddhasummer]

I won it, paid around $60, more than I wanted to. When I get this week I'll disassemble and post photos of both stages.

 

[CarcharodonCarcharias]

Are you using eBay Jpn to pick them up or there are other auction/secondary market sites? Just curious. Looks like there are some interesting stuff over on your side of the world.

 

[buddhasummer]

I avoid eBay whenever possible, usually way over priced with astronomical international shipping.

I use Yahoo Auction, it's all in Japanese and you have to be a resident, proof required, to join. It's a treasure trove of cheap, old, unusual dive gear. Mostly SP, I'd say maybe 70%.

 

[Scoooba-Bum]

Grats on winning the auction! Have you dissected them yet? Can't wait to see how it compares to other USD regs. These Japanese aqua-lung regs look rather interesting and would like to get one myself if it does share similar parts to conshelf models.

 

[buddhasummer]

Cheers. I should get it tomorrow so will dissect, compare and post photos.

 

[buddhasummer]

I'm gonna guess it uses mostly same internal parts as a conshelf but in a different package.

 

[CarcharodonCarcharias]

I avoid eBay whenever possible, usually way over priced with astronomical international shipping.

I use Yahoo Auction, it's all in Japanese and you have to be a resident, proof required, to join. It's a treasure trove of cheap, old, unusual dive gear. Mostly SP, I'd say maybe 70%.

Good stuff.

Looks like an interesting reg.

 

[buddhasummer]

Just got it. Wow, it's new in box. They never said that in the description. The LP ports are on a swivel. Hooked it up to a tank and it actually works. IP is rock solid at 135. It has 4x 3/8 LP ports and 2x 7/16 HP ports. It's a piston reg. Can't get it completely apart as I don't have sockets for Yoke and swivel retainer. I'm going to see if I can source a manual and parts but will assume it'll not be an easy task.

The second stage adjustment knob I cannot remove the pin, it's a serrated piece of cylindrical pipe, it looks like it's not supposed to be removed but that would seem strange. I looked at it with a loupe and there is no hex or screw head, I'm a bit lost on how to get it out. The diaphragm is different from a Conshelf, feels more plasticy.

Anyway, I'll keep playing with it and try to get this adjustment knob pin out.

 

[buddhasummer]

The adjustment knob pin looks like this: how does one remove such a pin? It's diameter is ver small, other than an O ring pick I have nothing small enough to fit in the hole. Cheers.