What if I wanted to work on my regs?

[redacted]

OTOH, I've got a SP MK10 bought in the US that has the 26mm yoke nut! Go figure

I just checked over a dozen yoke nuts from Mk2/5/10/20s and all were 1" or a bit less. Smallest was 25.1mm.

 

[LeadTurn_SD]

So, if you buy both the 1" and the 26mm, you should be pretty well "covered" for 99% of the 1st stages out there

This is actually what I did because I was not sure which size I would need for "future" regs I might get on ebay

Best wishes.

 

[HenrikBP]

I have a couple of SP regs where the 1" socket from Scubatools is too small. My home made 1" socket fits them all. Just one point of reference.

Henrik

 

[Couv]

I just checked over a dozen yoke nuts from Mk2/5/10/20s and all were 1" or a bit less. Smallest was 25.1mm.

By checking them, I'm guessing you mean with a micrometer. If so, are you also rotating the fitting and checking a different set of flats? Are you finding any variance in dimensions on the same yoke retainer?

I gotta get a life.........

c

 

[Slamfire]

Is there much of a learning curve when you do your own regs? How long did take it to service a 1st and 2nd stage in the beginning? How much shorter did it get after you became proficient?

Also, I have 2 MK10+ with 2 G250 Graphites. I've been able to find manuals for G250V's and G250HP's. Are any of these manuals usable for my graphites? Or do I have to get graphite specific manuals? If so, were could I get them?

 

[Zung]

Yes there's a bit of a learning curve, and you'll need plenty of time to start with, so this is not a professionally profitable operation. A good place to start is this manual.

Here's approximately my own project plan:

• Poke around this board: 1 month
• Read Oxy's book: 1 week
• Shop around for tools & parts: 1 month
• Start on a G250: 1/2 day
• Start on a MK10: 2 days

Don't let this turn you off: it gets a lot better with practice, and think of all the benefits you get: saving on service, peace of mind on safety, ability to buy a large quantity of used regs for cheap, service them good and let them sit in a closet forever.

Good luck.

Edit: G250, Graphite and Vintage are all the same. If you have the service manual (not the schematic), I'd be interested to have a copy.

 

[Slamfire]

It looks like I'm missing a manual for the G250V. I only have schematics for G250V. I do have the repair guide and the troubleshooting guide for the G250HP. I could still use those 2 guides with my Graphites, right? I tried attaching my pdf's on this post, but the documents are bigger than the SB attachment size limit. PM me your email so that I can send them over to you.

 

[Zung]

No thanks, I have the HP one; it's not very useful because the true G250 is a bit different, actually easier to work on.

 

[jd950]

Thank you all for all the information and links. This was really helpful. I read through some of the materials linked to in responses and servicing regs does not look too difficult. I think my mechanical skills are sufficient for this.

The books and tools look pretty "doable" from a cost standpoint except that I saw reference to ultrasonic cleaner. I don't have an ultrasonic cleaner and probably don't want one. I assume they are not cheap. I think I will order one or both books to start and read through those.

I might see if I can pick up a "beater" reg or two to work on before I try to do anything on my regs.

Thanks again for the help and references.

 

[Zung]

The ultrasonic cleaner I bought was on sale for 30$ in a local supermarket; just look around, it's really nice to have.