Groovy 
Well done!
Well done!
G250? Worth servicing?
- Thread starter buddhasummer
- Start date
Please register or login
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
- Ability to post and comment on topics and discussions.
- A Free photo gallery to share your dive photos with the world.
- You can make this box go away
OP
- Messages
- 17,617
- Reaction score
- 9,880
- Location
- Somewhere between here and there
- # of dives
- 2500 - 4999
Feeling more confident after my first attempts. Just rebuilt two more G250s, took no time at all and both crack at .9-1". Used old levers, longer orifice, S-Wing poppet and G250V main and exhaust diaphragms. I can here a slight lever rattle when pressurized. Still not convinced about the taller G250V diaphragms but on land both seem fine although will only stop at almost min when initiating a free flow from max. My other two stop about midway. Might swap in the original diaphragms just for comparison.
Last edited:
902 is the size. It is the same i.d. as a -010 but the c.s. is just a bit thinner.
902 = 0.064 c.s. 0.239 i.d.
010 = 0.070 c.s. 0.239 i.d.
Last edited:
Well this has been an epic 32 page read, glad it was a positive learning experience, I learned a lot too
Just wondering what size is the 902 Orifice o-ring mentioned earlier?
Orifice is a 902 the equivalent is 2-010
SP number 01-050-132
O-ring spec
Size n° 2-010
SH 70
Material EP
ID 6.06
Width 1.78
SH 70
Material EP
ID 6.06
Width 1.78
Aha... that's great thanks Couv and Tbar!
Aaargh... not out of the woods yet.
Pulling down the other G250 Graphite, and the small C clip holding the VIVA control knob snapped... rust pits in 'stainless'!
Appears to be a Low-Clearance Side-Mount External Retaining Ring vs standard external C clip or E clip as far as I can see... pretty tight spot.
The groove measures 6.8mm (0.268") dia x 0.8mm (0.0315") is it a standard imperial size?
9/32" is 0.281" so a bit loose but a 7mm ID C clip would also be a bit loose and too thick... IMO crazy SP design to have a tiny C clip potentially able to be sucked directly into your lungs if it fails!
Any clues gratefully received...
Pulling down the other G250 Graphite, and the small C clip holding the VIVA control knob snapped... rust pits in 'stainless'!
Appears to be a Low-Clearance Side-Mount External Retaining Ring vs standard external C clip or E clip as far as I can see... pretty tight spot.
The groove measures 6.8mm (0.268") dia x 0.8mm (0.0315") is it a standard imperial size?
9/32" is 0.281" so a bit loose but a 7mm ID C clip would also be a bit loose and too thick... IMO crazy SP design to have a tiny C clip potentially able to be sucked directly into your lungs if it fails!
Any clues gratefully received...
OP
- Messages
- 17,617
- Reaction score
- 9,880
- Location
- Somewhere between here and there
- # of dives
- 2500 - 4999
VDH includes those clips in its service kits. I don't think Bryan has them for individual sale though, I could be wrong.
I'll see if I can order a bunch through my supplier, if I can, happy to send you a couple. I'll know within 24 hours. I'll message you.
I'll see if I can order a bunch through my supplier, if I can, happy to send you a couple. I'll know within 24 hours. I'll message you.
That's great thanks... always good to have a couple of spares, I think it is a VERY good idea to replace these clips... the heavy rust pitting suggests the originals were 304 not 316 stainless
Similar threads
