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</o:shapelayout></xml><![endif]--></head><body lang=NL link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span style='mso-fareast-language:EN-US'>All,<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-fareast-language:EN-US'>It is normal that a brushed oil filled motor runs not well in air. The brushes will float on the oil due to the higher RPM.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-fareast-language:EN-US'>Emile<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b>Van:</b> Personal_Submersibles <personal_submersibles-bounces@psubs.org> <b>Namens </b>James Frankland via Personal_Submersibles<br><b>Verzonden:</b> maandag 19 juli 2021 13:22<br><b>Aan:</b> Personal Submersibles General Discussion <personal_submersibles@psubs.org><br><b>Onderwerp:</b> [PSUBS-MAILIST] Motor Issue<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi All<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Does anyone have any ideas on this?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Following the dive i did last week, i had a motor issue. The motor did not actually stop or fail, but during the dives it just didnt feel right.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>The positive wire going into the rotating penetrator would get hot after about 10 seconds of motor power. I could also hear a kind of electrical noise from within somewhere.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>So, the next day i took the motor apart. The oil (Silicone oil) was VERY black.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I was expecting to see something had been rubbing, but i couldnt see anything. It all looked fine. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I put it all back together and it runs fine in air. However, there does seem to be a louder motor running noise than the others.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I am unsure what the issue is. My feeling is that its carbon in the oil, making it conducting and hence slightly shorting out, causing the heat on the cable.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>The other motor cable did not get hot, nor did the oil go black.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Again, another video here. <a href="https://www.youtube.com/watch?v=v_VxVfhM9t8&t=2s">https://www.youtube.com/watch?v=v_VxVfhM9t8&t=2s</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Would appreciate any input. Im not sure what to do. Buy a new motor? Air compensate it?<o:p></o:p></p></div><div><p class=MsoNormal><br>Many thanks<br>James<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div></div></body></html>