Eric Sedletzky
Contributor
I have a MK 20 that was creeping really bad.
It blew right past 135 and would start to slow down around 150 and finally stop (kinda) somewhere around 160.
Just to be clear, I have never personally had this reg apart, all prior work was done by professionally trained technicians at authorized service centers.
Ok, so this reg was being used as a tire inflator, to run airbrushes and paint guns, air tools, etc.
I had dismissed it as no longer suitable for diving.
So yesterday I figured it's a nice reg, this was my first reg set dammit and I want it to be right!
I had a kit saved for it, so I tore it down and decided to lap out the knife edge with some black emory rouge on a piece of T-shirt rag. I melted some of the rouge onto the cloth with a heat gun.
I spun the knife edge into the rag and shined up the edge very nicely without really changing the shape of the knife edge like micro mesh could do. Black rouge will cut and remove micro scratches but will also buff to a high shine.
I put the service kit in and low and behold, the reg locks up a very solid 132 and stays!
Wonderfull! I'm so happy!!
It blew right past 135 and would start to slow down around 150 and finally stop (kinda) somewhere around 160.
Just to be clear, I have never personally had this reg apart, all prior work was done by professionally trained technicians at authorized service centers.
Ok, so this reg was being used as a tire inflator, to run airbrushes and paint guns, air tools, etc.
I had dismissed it as no longer suitable for diving.
So yesterday I figured it's a nice reg, this was my first reg set dammit and I want it to be right!
I had a kit saved for it, so I tore it down and decided to lap out the knife edge with some black emory rouge on a piece of T-shirt rag. I melted some of the rouge onto the cloth with a heat gun.
I spun the knife edge into the rag and shined up the edge very nicely without really changing the shape of the knife edge like micro mesh could do. Black rouge will cut and remove micro scratches but will also buff to a high shine.
I put the service kit in and low and behold, the reg locks up a very solid 132 and stays!
Wonderfull! I'm so happy!!
