Scubapro G250V

[MARK74]

Hello colleagues and happy holidays. Last week I got three pieces that I was missing in my collection for a great price, MK18-X650 and the regulator that I like the most and that has cost me the most to get, the G250V. The seller assures me that he had just serviced all three. I started with the G250V, all the pieces were embedded, after going through the ultrasound machine I can disassemble everything except the tube, the nut shows signs of having been forced with an incorrect tool, I have tried ultrasound, hot-cold, white vinegar -water at 50% and at the end wd-40 and 24 hours of rest and nothing, there is no way. In the end I gave up for fear of damaging the box, since I noticed a little looseness due to the force applied by the previous crank. In the end I cleaned it, changed the kit and tuned it, but the nut does not come off and I like to be able to disassemble it by I complete all my regulators. ANY MORE IDEAS WITH THE DAMN NUT? Thanks and regards

 

[Nemrod]

WD40 is a poor penetrating oil. You might consider something more like Kano Kroil.

 

[MARK74]

Thanks friend, I will follow your advice, after the service everything is fine, my fear is a failure of o-ring 23, with its corresponding leak, never in all the years that I have been servicing regulators have I seen a nut so seized, it is welded . And the worst thing is to force too much and break the casing. Thanks and regards

 

[MARK74]

WD40 is a poor penetrating oil. You might consider something more like Kano Kroil.

Nemrod, how do you think a strong descaler can affect the plastics in the box?

 

[Nemrod]

Nemrod, how do you think a strong descaler can affect the plastics in the box?

Products like CLR are not recommended for brass. A super penetrant is probably the best bet and let the penetrant work for a few days. Then, use two thin nuts to double nut the section that goes into the LP hose and use them to hold against torque on the d$5#2!m scubapro nut. You will probably need to slide the scubapro tool on first. Try to shock the frozen nut but whacking it (the scubapro tool that is) with a small hammer lightly, a sharp rap.

 

[MARK74]

Thank you very much friend, I will follow your advice, have a merry Christmas. Greetings

 

[happy-diver]

The longest I've had brass soaking in Phosphoric before soaking free without mechanical interference is five days

Threaded stuff same-next day