Sherwood scuba, SR 2

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

Joining is quick and easy. Log in or Register now!

Different kind of transmitter. @lexvil is talking about the ambient pressure transmitter in the 1st stage.

Maybe grease on the contact points of the 3 pin link transmitter would take care of the noise if that is indeed the culprit.
oops....thanks for the clarification!
 
I took the first stage apart, found a slight raised edge on the piston side of the transmitter, polished it down slightly, did a relube of all the moving parts and finally got in the pool with it yesterday
72537B00-EEEF-40A2-A821-5F60854336FE.jpeg

no brand loyalty here, AL outlaw b/c, D420 D mask and SR 2 1st and second, SP GoSport fins :wink: I have ordered some Sherwood Triton pro fins to try out, I’ve had regular tritons and the are really good all around fins but the stiffer PRO model is available so …

good news, didn’t hear any noise from the first, taking the shotgun approach I can’t isolate the issue.
CF4916E1-A8C2-4BB1-8B04-AD221F1815FE.jpeg


I still don’t know why my phone pics always post sideways.
 
Ok, it’s not in my nature to leave well enough alone so…

the performance of these SR Regs is as good as anything out there and better than most but…
I like my Regs to run hot enough that I can get them to “over” flow when I want it, these won’t do it they are so very well behaved,I’ve ordered some parts so it time to experiment.
the fine tuning adjustment for spring pressure is accessible through the control knob
4542E299-E847-46CC-942F-FFBBA1E3EE61.jpeg

the adjuster is pretty conventional micro adjuster, my new parts still use the Allen for adjustment.
inside it pretty conventional in design
59906C00-5D69-4293-8C43-E96B1EB4CE09.jpeg

the air is delivered via two holes
B46E9313-770F-4510-BE12-183BAD77DE66.jpeg

this is the diverted/interuptor all the way in
E3ADCF20-45AD-4CAC-BCAC-075CBB144D8F.jpeg

All the way out
AFAF533F-C86B-40E3-9CEF-A85F27ABC053.jpeg

you can see it adds turbulence even when open for the second hole, it also stands off a little which I feel also creates some turbulence
9FFDC1EC-2939-4201-876C-3B015D85629E.jpeg

so my first attempt at making it lose a little of its tight control
CD456E5C-527F-4859-A0BB-AA6DE7199BD2.jpeg

I removed a little bit from the divertor, I’m getting a touch of the push I like but have to wait until next week to dive it.
the other interesting thing about these is the orifice end adjustment, no in-line adjuster needed
3791FD14-42D4-4855-8269-3562E38793F8.jpeg

the sleeve here cones through the lock nut and provides easy adjustment with no special tools
4D8D632C-9249-4989-90A2-12AF9BD27474.jpeg

you can just make out the adjuster notches in this pic, all you need is a small pick or screw driver to turn it, the adjustment tweaks orifice/seat engagement without affecting lever height.
 

Attachments

  • C486AA7F-04F6-4D5B-ADEF-EAA28A473A34.jpeg
    C486AA7F-04F6-4D5B-ADEF-EAA28A473A34.jpeg
    90 KB · Views: 40
  • 581AEC7A-EC05-4B4E-BE60-ACDE2845AEC6.jpeg
    581AEC7A-EC05-4B4E-BE60-ACDE2845AEC6.jpeg
    82.5 KB · Views: 41
  • F750DB9D-5B7B-4E57-A0DE-561A376C83B5.jpeg
    F750DB9D-5B7B-4E57-A0DE-561A376C83B5.jpeg
    72.5 KB · Views: 37
Some pics of the other end, how someone thought of a way for an adjustment for orifice/seat that doesn’t change lever height is pretty astonishing;
Adjuster all of the way out
5372AFCA-18FB-4269-AEAA-90D06325D196.jpeg

all the way in
9344B2E2-1AFC-4D52-8F32-58549B89A152.jpeg

it works against this sleeve, in or out the lever stays the same
9344B2E2-1AFC-4D52-8F32-58549B89A152.jpeg
CF444C0C-7047-4ECF-9E90-CB218BE4BE4D.jpeg
7EFF1495-DF64-4AC5-B7B6-600784DF8383.jpeg
 

Attachments

  • EA3CBE11-434F-4AA8-94C1-FEE4EF87077F.jpeg
    EA3CBE11-434F-4AA8-94C1-FEE4EF87077F.jpeg
    83.3 KB · Views: 49
The one drawback of the Atomic floating seat was for me that it took more iterative steps to adjust (since I sold my inline adjuster), -compared a standard orifice, where I can approximate the position very closely by blowing through it while unpressurized. This new Sherwood technology seems to make adjusting a floating seat very easy! Having a stockpile of Scubapro 2nd stage seats make me reluctant to switch now though...
 
Update, switched to the MK 21 for one day, previous day used the SR2 and D420 on the SRfirst stage, this is the tuned 420 with factory seat, the SR may actually be a better breather, I used an SR1 second in place of the 420 and it too is amazing, today all SR 2.
Blasphemy ...
 
The one drawback of the Atomic floating seat was for me that it took more iterative steps to adjust (since I sold my inline adjuster), -compared a standard orifice, where I can approximate the position very closely by blowing through it while unpressurized. This new Sherwood technology seems to make adjusting a floating seat very easy! Having a stockpile of Scubapro 2nd stage seats make me reluctant to switch now though...
George, no...
 
https://www.shearwater.com/products/swift/

Back
Top Bottom