R109 lever height

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Yes, my favorite regulator tool, a wooden chopstick, works great to push out the orifice. I use chopsticks that are round, not square, and have a taper at the end. The taper fits inside the orifice, so you're not even pushing directly on the edge.

I've seen the pin retainer and the narrow-slot orifice, but never that funny looking poppet. Thanks for posting.
 
I have had some that have stubbornly resisted disassembly. I suspect sometime it is because someone used a -010 rather than the -902 on the metal orifice. I have had good success with unscrewing it until you feel the threads click and then use a wooden or plastic dowel to push the orifice out. I have applied quite a bit of force with no apparent damage to the knife edge.

Yeah, using wood would have been a bit smarter :dunce:

Unfortunately, I couldn't get the poppet out without removing the orifice, so I had to get something through the orifice that would also turn to allow me to pull.

Oh, and I can't speak about the 010 or 902, but it was one of the old red-colored o-rings that are SP originals.
 
Yeah, using wood would have been a bit smarter :dunce:

Unfortunately, I couldn't get the poppet out without removing the orifice, so I had to get something through the orifice that would also turn to allow me to pull.

Oh, and I can't speak about the 010 or 902, but it was one of the old red-colored o-rings that are SP originals.

Once I lift or remove the lever, I use a small allen wrench inserted thru the orifice to push the poppet loose. The red one are 902s.
 
Once I lift or remove the lever, I use a small allen wrench inserted thru the orifice to push the poppet loose. The red one are 902s.

I tried using a small torx head screwdriver, but I didn't have anything that was thin enough to go through the orifice and still long enough to pass all the way through the air chamber.

There's a lesson for me!

Thanks!
 
I wonder if any folks that "service" regs soak them in solution first?

Then rinse and adjust and that's the service.
 
... Finally, the orifice had a much thinner groove for the screwdriver head (I had to go hunting for a thin bladed screwdriver in order to remove it)...

I have one of these oddities too. Interestingly, it came in one of my older G250 Graphite; it's the second generation of the G250's, around '87-'89 according to the SCUBAPRO Regulator Museum.
 
I recently bought a metal orifice to replace a plastic one. The one that came in was gold plated! I guess SP did a bunch of odd things over the years.
 
I just replaced a plastic 190 orifice with a generic from somewhere because using plastic is criminal and it was turning to dust from
chlorine.
 

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