Scubapro G500 not serviceable?

[lexvil]

Thanks, Captain Hindsight. I don't know what we would do without you.

If you had asked beforehand…

 

[lexvil]

Seriously, I appreciate your valuable input on this. Thank you.

Is this the balance chamber, or what's left of it??
View attachment 778088

I don’t think so but I can’t find a a parts list or schematic to confirm or deny.

 

[axxel57]

Seriously, I appreciate your valuable input on this. Thank you.

Is this the balance chamber, or what's left of it??
View attachment 778088

No, it's a damaged SPG spool.....

 

[MiltonC]

Thanks, axxel57.

I took off the knob plug and it looked like some parts were missing.

 

[rhwestfall]

 

[rhwestfall]

earlier version:

 

[rhwestfall]

Thanks, axxel57.

I took off the knob plug and it looked like some parts were missing.View attachment 778090

I'm a little unfamiliar with the g500 specifically, but it seems similar to a few others I've worked on (I have and maintain the early generations of the G250HP and the S555/S600). Missing parts? I don't think so.. that is the end of the micro-adjust that the adjuster device connects to...

 

[MiltonC]

I believe you are right.
I don't see any scratches or cracks in these parts:

 

[MiltonC]

The only thing that looks "off" is this little piece of yellow material next to an o-ring and folded over the top of it. It looks like a very thin washer but I don't see anything like it it in the diagram. I'm not sure it isn't some kind of dried up sealant but it appears to go around the whole o-ring.

 

[rsingler]

That is dye that Scubapro uses to mark a -138 oring, if I recall the number correctly.
That poppet is a very old version, and while I have a few, the seat is hardened, and I would put it in only for someone wanting an original "vintage" reg. It wouldn't tune well at all.
You'll need a new $20 S-wing poppet on top of service kit and labor.
Those parts look to be in very good condition. Happy to help if you want.