JJ-BOV advice

louisrankin · June 22nd, 2012, 10:11 AM

Hi,

I just purchased a second hand JJ-BOV that I intend to use on my Meg.

The BOV breaths very well in CC mode but when I switch to open circuit I find the exhale breathe has a lot of resistance, is this normal?

Is this a symptom of over tightening the exhale bung or because the exhale diaphragm is small?

Thanks

Louis

Remco · June 22nd, 2012, 11:16 AM

www.ccrexplorers.com/showthread.php?t=13223

check this out...

Grtsz remco

louisrankin · June 22nd, 2012, 12:07 PM

Remco,

The link does not work for me can you let me know what section to look in

Thanks

Louis

louisrankin · June 22nd, 2012, 12:28 PM

Thanks Remco I have found it.

http://www.ccrexplorers.com/showthread.php?t=13223

The link function is not working it adds http://www.ccrexplorers.com/!13223! to the front of the link site admin bug for you to fix

I am using a MacBook Pro running firefox I have tested it with any other browser yet

Iain3 · June 22nd, 2012, 01:04 PM

Quote: (Originally Posted by louisrankin)

Hi,

I just purchased a second hand JJ-BOV that I intend to use on my Meg.

The BOV breaths very well in CC mode but when I switch to open circuit I find the exhale breathe has a lot of resistance, is this normal?

Is this a symptom of over tightening the exhale bung or because the exhale diaphragm is small?

Thanks

Louis

I doubt you were overtightening the cover over the exhale valve. The new ones don't let you tighten it too much, on the old ones where you can (like mine) it exhales fine but just breathes very very wet.

Remco · June 22nd, 2012, 05:00 PM

sorry,

no http:// and the link works. Edit : ( Worked once ..? .. i dont know...)

Grtsz Remco

i am still waiting for the BOV to be "CE" ....

alexasigno · July 2nd, 2012, 12:15 PM

Does anyone know when the CE released BOV is out there'll be an upgrade kit?

Tiptopperoo · July 2nd, 2012, 01:01 PM

I've been waiting on my BOV since January. Jan is pretty horrible when it comes to providing any useful details about when it may be available. I was told April, then after hearing nothing for 6 weeks and expecting it to be well on the way, he tells me he is having trouble finding parts and hasn't sent me out one yet... YAWN this is getting frustrating!

Lenny · August 18th, 2012, 07:44 PM

has anyone got a golem gear shrimp on ther JJ if so how is it and wich kit did you get

divingtactics · August 23rd, 2012, 07:20 AM

I have ordered the left fed Dolphin version and I'll let you know how it is if Jakub ever decides to ship it. Two weeks and counting, still not shipped.

Part number is: GG_ShrimpBOV_Dolph_OCLeft

Also ordered the Diva Hud Holder and will have a sleeve made to allow it to fit the Shearwater HUD - part number is: GG_HUDH_rD

The Shrimp is a beautifully built piece of kit, I know a couple of the guys have it on their JJ's.

I have the JJ BOV as well, but not 100% happy with the way it exhausts in open circuit mode on hard inhalations. I've done the Nick B mod and tuned it up, but still not 100% happy, so ordered the Shrimp.

June 22nd, 2012, 10:11 AM	#1
louisrankin New Member Join Date: May 2012 Location: Brisbane Posts: 12 Thanks: 1 Thanked 1 Time in 1 Post	JJ-BOV advice Hi, I just purchased a second hand JJ-BOV that I intend to use on my Meg. The BOV breaths very well in CC mode but when I switch to open circuit I find the exhale breathe has a lot of resistance, is this normal? Is this a symptom of over tightening the exhale bung or because the exhale diaphragm is small? Thanks Louis
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June 22nd, 2012, 11:16 AM	#2 (permalink)
Remco New Member Join Date: Apr 2012 Location: Netherlands Posts: 161 Thanks: 0 Thanked 0 Times in 0 Posts	www.ccrexplorers.com/showthread.php?t=13223 check this out... Grtsz remco
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June 22nd, 2012, 12:07 PM	#3 (permalink)
louisrankin New Member Join Date: May 2012 Location: Brisbane Posts: 12 Thanks: 1 Thanked 1 Time in 1 Post	JJ-BOV advice Remco, The link does not work for me can you let me know what section to look in Thanks Louis
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June 22nd, 2012, 12:28 PM	#4 (permalink)
louisrankin New Member Join Date: May 2012 Location: Brisbane Posts: 12 Thanks: 1 Thanked 1 Time in 1 Post	Thanks Remco I have found it. http://www.ccrexplorers.com/showthread.php?t=13223 The link function is not working it adds http://www.ccrexplorers.com/!13223! to the front of the link site admin bug for you to fix I am using a MacBook Pro running firefox I have tested it with any other browser yet
(Offline)

June 22nd, 2012, 01:04 PM	#5 (permalink)
Iain3 Big Member Join Date: Mar 2012 Location: Sydney Posts: 258 Thanks: 17 Thanked 27 Times in 15 Posts	Quote: (Originally Posted by louisrankin) Hi, I just purchased a second hand JJ-BOV that I intend to use on my Meg. The BOV breaths very well in CC mode but when I switch to open circuit I find the exhale breathe has a lot of resistance, is this normal? Is this a symptom of over tightening the exhale bung or because the exhale diaphragm is small? Thanks Louis I doubt you were overtightening the cover over the exhale valve. The new ones don't let you tighten it too much, on the old ones where you can (like mine) it exhales fine but just breathes very very wet.
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June 22nd, 2012, 05:00 PM	#6 (permalink)
Remco New Member Join Date: Apr 2012 Location: Netherlands Posts: 161 Thanks: 0 Thanked 0 Times in 0 Posts	sorry, no http:// and the link works. Edit : ( Worked once ..? .. i dont know...) Grtsz Remco i am still waiting for the BOV to be "CE" ....
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July 2nd, 2012, 12:15 PM	#7 (permalink)
alexasigno New Member Join Date: Apr 2012 Location: Sydney Posts: 69 Thanks: 3 Thanked 14 Times in 10 Posts	Does anyone know when the CE released BOV is out there'll be an upgrade kit?
(Online)

July 2nd, 2012, 01:01 PM	#8 (permalink)
Tiptopperoo CCRx Supporter Join Date: Mar 2012 Location: Melbourne Posts: 101 Thanks: 23 Thanked 10 Times in 7 Posts	I've been waiting on my BOV since January. Jan is pretty horrible when it comes to providing any useful details about when it may be available. I was told April, then after hearing nothing for 6 weeks and expecting it to be well on the way, he tells me he is having trouble finding parts and hasn't sent me out one yet... YAWN this is getting frustrating!
(Online)

August 18th, 2012, 07:44 PM	#9 (permalink)
Lenny New Member Join Date: Mar 2012 Location: UK Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts	golem gear has anyone got a golem gear shrimp on ther JJ if so how is it and wich kit did you get
(Offline)

August 23rd, 2012, 07:20 AM	#10 (permalink)
divingtactics Serious Swagelok Addict Join Date: Mar 2012 Location: Melbourne Australia Posts: 162 Thanks: 17 Thanked 18 Times in 17 Posts	I have ordered the left fed Dolphin version and I'll let you know how it is if Jakub ever decides to ship it. Two weeks and counting, still not shipped. Part number is: GG_ShrimpBOV_Dolph_OCLeft Also ordered the Diva Hud Holder and will have a sleeve made to allow it to fit the Shearwater HUD - part number is: GG_HUDH_rD The Shrimp is a beautifully built piece of kit, I know a couple of the guys have it on their JJ's. I have the JJ BOV as well, but not 100% happy with the way it exhausts in open circuit mode on hard inhalations. I've done the Nick B mod and tuned it up, but still not 100% happy, so ordered the Shrimp.
(Offline)