<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1479854165009_2573" dir="ltr"><span id="yui_3_16_0_1_1479854165009_2607">Brian.<br id="yui_3_16_0_1_1479854165009_2600">No you set the regulator to 4psi or thereabouts, so there is<br id="yui_3_16_0_1_1479854165009_2601">an overpressure inside the thruster, above ambient. This regulator<br id="yui_3_16_0_1_1479854165009_2602">always keeps you at 4psi above ambient on the way down & on the way up<br id="yui_3_16_0_1_1479854165009_2603">when the small volume of air in the tube expands, it forces open the relief valve.<br id="yui_3_16_0_1_1479854165009_2604">I am not sure how much pressure above the 4psi it takes to open the relief valve<br id="yui_3_16_0_1_1479854165009_2605">on the unit Cliff has, but this could be adjusted by replacing a spring.<br id="yui_3_16_0_1_1479854165009_2606">Alan</span></div><div class="qtdSeparateBR" id="yui_3_16_0_1_1479854165009_2543"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_1_1479854165009_2619" style="display: block;">  <div id="yui_3_16_0_1_1479854165009_2618" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_1_1479854165009_2617" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_1_1479854165009_2616" dir="ltr"> <font id="yui_3_16_0_1_1479854165009_2615" face="Arial" size="2"> <hr size="1"> <b><span style="font-weight: bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, November 23, 2016 11:23 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] compensating oil<br> </font> </div> <div class="y_msg_container"><br><div id="yiv1354229221"><div><div style="font-family: Arial, sans-serif; font-size: 10pt;"><div>Alan,          That is an interesting way to do it.  Then you would end up with a slight vacuum after a heating cycle, which could introduce sea water if you had any leaks, or not , if you had a tight system then it would stay in equal Librium .  </div><div> </div><div>Hank how do you attach your hose to the inner tube? and how do you seal the tube?</div><div> </div><div>Brian<br clear="none"><br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: Alan James via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br clear="none">Subject: Re: [PSUBS-MAILIST] compensating oil<br clear="none">Date: Tue, 22 Nov 2016 18:21:36 +0000 (UTC)<br clear="none"><br clear="none"></div><div class="yiv1354229221yqt0380477702" id="yiv1354229221yqt28897"><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><div><span>Brian,</span></div><div dir="ltr"><span>you should be able to find an information sheet on the compensating</span></div><div dir="ltr"><span>oil that you choose. They give expansion statistics based on various</span></div><div dir="ltr"><span>temperatures. Cliff is using a relieving regulator set at a low psi, to</span></div><div dir="ltr"><span>either pressurize the oil, or air if you want to just air compensate.</span></div><div dir="ltr"><span>In this case if you partially fill your line with oil then any expansion</span></div><div dir="ltr"><span>can force air out the relieving port of the regulator.</span></div><div dir="ltr"><span>Alan</span></div><div><br clear="none"><br clear="none"></div><div style="display: block;">  <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"> <font face="Arial" size="2"> </font><hr size="1"> <b><span style="font-weight: bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none"> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br clear="none"> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, November 23, 2016 6:06 AM<br clear="none"> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] compensating oil<br clear="none">  </div> <div><br clear="none"><div><div><div style="font-family: Arial, sans-serif; font-size: 10pt;"><div>Hank,   How much expansion volume have you observed after running your motors?   </div><div> </div><div>Brian<br clear="none"><br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br clear="none">Subject: Re: [PSUBS-MAILIST] compensating oil<br clear="none">Date: Tue, 22 Nov 2016 16:47:26 +0000 (UTC)<br clear="none"><br clear="none"></div><div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><div><span>Brian,</span></div><div dir="ltr"><span>  Just make a flat spot on you housing that you can bolt a rubber membrane too.  A piece of inner tube works.  </span></div><div dir="ltr"><span>Hank</span></div> <div><br clear="none"><br clear="none"></div><div style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font face="Arial" size="2"> On Tuesday, November 22, 2016 9:36 AM, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br clear="none"></font></div>  <br clear="none"><br clear="none"> <div><div><div><div style="font-family: Arial, sans-serif; font-size: 10pt;"><div>I was planning on running a line from my motor pod ( filled with oil) up to a small scuba tank.  I would have a small volume of air before the scuba tank as a place for the oil to go when it expands with the heat generated.  So in other words the whole system would be close so no oil can escape into the water.  I imagine there will be some pressure build up as the air compresses into the scuba tank but not too much.  Does anyone have a similar system ?</div><div> </div><div> </div><div>Brian</div><div> </div><div><div><br clear="none"><br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">To: "Personal Submersibles General Discussion" <personal_submersibles@psubs.org><br clear="none">Subject: Re: [PSUBS-MAILIST] compensating oil<br clear="none">Date: Mon, 21 Nov 2016 08:35:29 -0800<br clear="none"><br clear="none"></div><div style="font-family: Arial, sans-serif; font-size: 10pt;"><div>Looks like the Shell product is the Diala S2 ZX - A , is the only one available in the US.    unfortunately it is only available in 55 gal drums.  it has a viscosity of 9 at 40C   not sure what kind of units that would be.  </div><div> </div><div> </div><div>Brian<br clear="none"><br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: "Sean T. Stevenson via Personal_Submersibles" <personal_submersibles@psubs.org><br clear="none">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br clear="none">Subject: Re: [PSUBS-MAILIST] compensating oil<br clear="none">Date: Sun, 20 Nov 2016 17:07:21 -0700<br clear="none"><br clear="none"></div><div dir="ltr">For compensating electrically energized equipment, you want to look at the Shell Diala, or ExxonMobil Voltesso oils.</div></div></div></div>
<div><div dir="ltr">Sean<br clear="none">

<br clear="none"><br clear="none"></div><div>On November 20, 2016 4:34:44 PM MST, Alan James via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<blockquote style="margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;">
<div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><div><span>Brian,</span></div><div dir="ltr"><span>couldn't find my receipt, but Googled & this Californian company</span></div><div dir="ltr"><span>sells it at $94- for 5 gallons.</span></div><div dir="ltr"><span><a href="https://www.mil-specproducts.com/products/SHELL-MORLINA-OIL-S2-BL-10" target="_blank" rel="nofollow" shape="rect">SHELL MORLINA OIL S2 BL 10 - Buy Online Now! SHELL MORLINA OIL S2 ...</a></span></div><div dir="ltr"><span>Alan</span></div><div><br clear="none"></div><div> <a style="color: rgb(0, 0, 0); text-decoration: none;" href="https://www.mil-specproducts.com/products/SHELL-MORLINA-OIL-S2-BL-10" target="_blank" rel="nofollow" shape="rect"> </a><a style="color: rgb(0, 0, 0); text-decoration: none;" href="https://www.mil-specproducts.com/products/SHELL-MORLINA-OIL-S2-BL-10" target="_blank" rel="nofollow" shape="rect">    </a><table style="max-width: 400px;" border="0" cellspacing="0" cellpadding="0"><tbody><tr><td width="400" rowspan="1" colspan="1">       <table width="100%" style="background: rgb(255, 255, 255); border-width: 1px 1px 3px; border-style: solid; border-color: rgb(224, 228, 233) rgb(224, 228, 233) rgb(0, 0, 0); max-width: 400px;" border="0" cellspacing="0" cellpadding="0"><tbody><tr><td style="padding: 16px 0px 16px 12px; vertical-align: top;" rowspan="1" colspan="1">  </td><td style="padding: 16px 12px; width: 99%; vertical-align: middle;" rowspan="1" colspan="1"> <h2>SHELL MORLINA OIL S2 BL 10 - Buy Online Now! SHELL MORLINA OIL S2 ...</h2>  <div style="color: rgb(153, 153, 153); line-height: 15px; font-size: 11px;">SHELL MORLINA OIL S2 BL 10 is Sold in Small and Large Volumes at Mil-SpecProducts.com. Shell Morlina S2 BL oils ...</div> </td><td rowspan="1" colspan="1"></td></tr></tbody></table> </td></tr></tbody></table> </div><div><br clear="none"></div><div><br clear="none"><br clear="none"></div><div style="display: block;">  <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-size: 16px;"> <div dir="ltr"> <font face="Arial" size="2"> </font></div></div></div></div></div></blockquote></div><div></div><hr size="1"><font face="Arial" size="2"> <b><span style="font-weight: bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none"> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br clear="none"> <b><span style="font-weight: bold;">Sent:</span></b> Monday, November 21, 2016 12:14 PM<br clear="none"> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] compensating oil<br clear="none"> </font>  <div><br clear="none"><div><div><div style="font-family: Arial, sans-serif; font-size: 10pt;"><div>Alan,    How much is that stuff?    Are you using it for motors as well?</div><div> </div><div>Brian</div><div><div><br clear="none">--- personal_submersibles@psubs.org wrote:<br clear="none"><br clear="none">From: Alan James via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br clear="none">Subject: Re: [PSUBS-MAILIST] compensating oil<br clear="none">Date: Sun, 20 Nov 2016 04:55:34 +0000 (UTC)<br clear="none"><br clear="none"></div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><div><span>Brian,</span></div><div><span>I have
been using this..</span></div><div dir="ltr"><span><a href="http://www.dayanoilco.com/upload/product/1451803631.pdf" target="_blank" rel="nofollow" shape="rect">http://www.dayanoilco.com/upload/product/1451803631.pdf</a></span></div><div dir="ltr"><span>Shell morlina S2 BL 10</span></div><div dir="ltr"><span>I consulted with a technician who suggested this for my application.</span></div><div dir="ltr"><span>It's a 10cst oil. If you go too low in viscosity you shorten the life</span></div><div dir="ltr"><span>of your bearings.</span></div><div dir="ltr"><span>Alan</span></div><div><br clear="none"><br clear="none"></div><div style="display: block;">  <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"> <font face="Arial" size="2"> </font><hr size="1"> <b><span style="font-weight: bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none"> <b><span style="font-weight: bold;">To:</span></b> PSubs <personal_submersibles@psubs.org> <br clear="none"> <b><span style="font-weight: bold;">Sent:</span></b> Sunday, November 20, 2016 8:49 AM<br clear="none"> <b><span style="font-weight: bold;">Subject:</span></b> [PSUBS-MAILIST] compensating oil<br clear="none">  </div> <div><br clear="none"><div><div style="font-family: Arial, sans-serif; font-size: 10pt;"><div>Hi All,</div><div>               I know this subject has been thoroughly discussed but what would be a good oil to put in my motor pod?  Is there something about transmission fluid that would be bad?  What about hydraulic fluid?  or a light oil like a 0 - 20
weight?</div><div> </div><div>Thanks,</div><div> </div><div> </div><div>Brian</div><div> </div></div>
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