<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>One problem with air compensation or using really thin oil is it is not</div><div id="AppleMailSignature">good for the bearings. The thinner the oil the shorter their life.</div><div id="AppleMailSignature">If the motor is designed for the heat produced with air compensation</div><div id="AppleMailSignature"> (large windings large motor) then you could get away with it. </div><div id="AppleMailSignature">The Minn kota are obviously designed for this.</div><div id="AppleMailSignature">But if you are taking a golf cart motor that is normally exposed to some air</div><div id="AppleMailSignature">cooling ( like Brian is doing,) & creating an oven around it, then you may run in</div><div id="AppleMailSignature">to some problems.</div><div id="AppleMailSignature">As I have said before, if you grind a piece of steel till it is red hot it will take</div><div id="AppleMailSignature">several minutes to cool but if you plunge it in water it cools immediately,</div><div id="AppleMailSignature">hence the huge advantage of oil compensation for cooling.</div><div id="AppleMailSignature">Extreme heat can demagnetise the magnets & continual overheating will</div><div id="AppleMailSignature">shorten the life of the windings.</div><div id="AppleMailSignature">Brian was talking about measuring the heat inside his motor, so I guess he can</div><div id="AppleMailSignature">plan for either option if the motor gets too hot.</div><div id="AppleMailSignature">Alan</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature"><br>Sent from my iPad</div><div><br>On 30/03/2017, at 5:10 AM, emile via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="Generator" content="Microsoft Word 12 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">Totally agree with you. <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">With clever positioning of the connections and 2<sup>nd</sup> stage, any (condensated) water will be expelled when ascending.<o:p></o:p></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D">BR, Emile<o:p></o:p></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Van:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Personal_Submersibles [<a href="mailto:personal_submersibles-bounces@psubs.org">mailto:personal_submersibles-bounces@psubs.org</a>] <b>Namens </b>james cottrell via Personal_Submersibles<br><b>Verzonden:</b> woensdag 29 maart 2017 15:01<br><b>Aan:</b> Personal Submersibles General Discussion<br><b>Onderwerp:</b> Re: [PSUBS-MAILIST] WD - 40<o:p></o:p></span></p></div></div><p class="MsoNormal"><o:p> </o:p></p><div><div id="yui_3_16_0_1_1490790963881_4935"><p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black">I have to say, I no longer think that WD40 is the best for compensating things underwater. Over time it causes plastics and rubber to harden and become brittle.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_4935"><p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black">Silicone oil is better but the other problem with oil compensation in general is that the smallest drop/leak makes a very visible oil slick around your sub (not good). Most guys are using trolling motors and they're not really tight enough to hold thin oil without leaks.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_4935"><p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black">Back in the 90s I was using air compensation- and it actually worked really well. As far as I know, Karl Stanley has also been using air compensation for a long time without problems.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_4935"><p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black">It's a clean system that's not hard to set up and a small bottle of air lasts for many dives.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_4935"><p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black"><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_4935"><p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black">Greg C<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_4935"><p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black"><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5027"><p class="MsoNormal" style="background:white"><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black"><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5033"><div id="yui_3_16_0_1_1490790963881_5032"><div id="yui_3_16_0_1_1490790963881_5031"><div id="yui_3_16_0_1_1490790963881_5030"><div class="MsoNormal" align="center" style="text-align:center;background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><hr size="1" width="100%" align="center"></span></div><p class="MsoNormal" style="background:white"><b id="yui_3_16_0_1_1490790963881_5066"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">From:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> "<a href="mailto:MerlinSub@t-online.de%20via%20Personal_Submersibles">MerlinSub@t-online.de via Personal_Submersibles</a>" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br><b id="yui_3_16_0_1_1490790963881_5064">To:</b> Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br><b id="yui_3_16_0_1_1490790963881_5062">Sent:</b> Tuesday, March 28, 2017 12:55 PM<br><b>Subject:</b> Re: [PSUBS-MAILIST] WD - 40</span><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5571"><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p> </o:p></span></p><div id="yiv1742601455"><div id="yui_3_16_0_1_1490790963881_5573"><div id="yui_3_16_0_1_1490790963881_5572"><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">On a brushless motor it will maybe work with mineral oil. </span><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5574"><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">On motors with brushes I have bad expierence with that. </span><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5575"><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Mineral oil is a big problem in a lake if a motor is even a little untight. </span><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5576"><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> </span><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5577"><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5578"><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5825"><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">-----Original-Nachricht-----<o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">Betreff: Re: [PSUBS-MAILIST] WD - 40<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5826"><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">Datum: 2017-03-28T17:15:59+0200<o:p></o:p></span></p></div><div id="yiv1742601455yqtfd68998"><div id="yui_3_16_0_1_1490790963881_5827"><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">Von: "Brian Cox via Personal_Submersibles" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">An: "Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5828"><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5829"><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5832"><div id="yui_3_16_0_1_1490790963881_5831"><div id="yui_3_16_0_1_1490790963881_5830"><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Hi Carsten, <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5833"><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> I did a small test trying to light the WD40 on fire. It's not as flammable as I thought it would be. I think they have improved it's non-flammability with new formulation. It's still somewhat flammable however. <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">I will be using a light mineral oil in my motors.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5834"><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5835"><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Brian<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5836"><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1490790963881_5837"><p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><br><br>--- <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a> wrote:<br><br>From: "<a href="mailto:MerlinSub@t-online.de%20via%20Personal_Submersibles">MerlinSub@t-online.de via Personal_Submersibles</a>" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>To: Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>Subject: Re: [PSUBS-MAILIST] WD - 40<br>Date: Tue, 28 Mar 2017 07:22:02 +0200 (MEST)<o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Heat Vapor is may a problem with WD40. <o:p></o:p></span></p></div></div><div><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">May ensure that the compensating back is big to handle that.. </span><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">We change to silicon oil for that reason. </span><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">vbr Carsten </span><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">-----Original-Nachricht-----<o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">Betreff: [PSUBS-MAILIST] WD - 40<o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">Datum: 2017-03-28T04:56:46+0200<o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">Von: "Brian Cox via Personal_Submersibles" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">An: "PSubs" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p></div><div><div><div><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">I just ran one of my motors filled with the WD40. It seemed to be very happy. I mainly just did it to clean the carbon build up out of the motor. I was surprised how sealed the motor was, it is open at one end where it mates to the gear box. I was able to fill it up without it leaking out anywhere. That could be an issue later when I want the mineral oil to fill all the voids. I might need to actually drill some holes to get some circulation . <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> <o:p></o:p></span></p></div><div><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Brian <o:p></o:p></span></p></div></div></div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">_______________________________________________ Personal_Submersibles mailing list <span class="MsoHyperlink"><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p></div></div></div><div id="yqtfd83565"><p class="MsoNormal" style="background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black">_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></span></p></div><p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><span style="font-size:9.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p> </o:p></span></p></div></div></div></div></div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Personal_Submersibles mailing list</span><br><span><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br></div></blockquote></body></html>