<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> <div class="moz-cite-prefix">I used Amsoil synthetic gear lube in mine. Decades ago. I have not had any problem.<br> Dave<br> <br> <br> On 12/14/2019 7:46 PM, Chris Tromley wrote:<br> </div> <blockquote type="cite" cite="mid:CAC36KhEag6stBHkFXGRq_n513mU2wMwRwj-nNruMwnhXu=7=og@mail.gmail.com"> <meta http-equiv="content-type" content="text/html; charset=utf-8"> <div dir="ltr"> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif">If the leak is from the axle seals, it's probably too late and you're looking at replacingÂ all the seals - whichÂ would mean youÂ could continue using synthetic.Â If the leak is at the plug, maybe there's no problem (until there is, in which case it's too late and you're looking at new seals).</div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br> </div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif">So if the seals aren't leaking yet a flush is a good idea.Â If it was me I wouldn't assume ATF has no synthetic additives or other odd stuff.Â I'd use a light weight non-synthetic motor oil and jack up the rear wheels while you spin it up to splash the oil around.Â (Motor oil doesn't have the high pressure additives a loaded transmission needs.)</div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br> </div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Motor oil isÂ builtÂ from the same stuff as hypoid lube, so you know they'll mix well and give a good flush.Â ATF has a lot going on in there, and it's anyone's guess how it'll mix with gear lube.</div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br> </div> <div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Chris</div> </div> <br> <div class="gmail_quote"> <div dir="ltr" class="gmail_attr">On Sat, Dec 14, 2019 at 4:48 PM Chris Zach <<a href="mailto:cz@alembic.crystel.com" moz-do-not-send="true">cz@alembic.crystel.com</a>> wrote:<br> </div> <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">That's a problem then. I may just have to order oil from the internet <br> and do another swap-out. What's good to flush a transmission again, atf?<br> <br> C<br> <br> On 12/14/2019 11:14 AM, Chris Tromley wrote:<br> > As for synthetic oil, my understanding is that seal materials were <br> > updated around 1980 to be compatible with synthetics.Â That means <br> > original seals in our tractors are probably not.Â The failure mode is <br> > seal swelling, which can deform the seal enough to cause a leak.Â Any <br> > seal replaced in the last couple of decades should be no problem.<br> > <br> > Chris<br> > <br> > On Fri, Dec 13, 2019 at 5:45 PM Chris Zach <<a href="mailto:cz@alembic.crystel.com" target="_blank" moz-do-not-send="true">cz@alembic.crystel.com</a> <br> > <mailto:<a href="mailto:cz@alembic.crystel.com" target="_blank" moz-do-not-send="true">cz@alembic.crystel.com</a>>> wrote:<br> > <br> >Â Â Â While drilling out the steering cotter pin, I noticed that my E20<br> >Â Â Â transmission had leaked all over the driveway. Nice little puddle,<br> >Â Â Â turns<br> >Â Â Â out the drain plug was not on tightly enough. I cranked it down harder<br> >Â Â Â but should I put teflon tape around the threads or something?<br> > <br> >Â Â Â I hate synthetic oil.<br> > <br> >Â Â Â _______________________________________________<br> >Â Â Â Elec-trak mailing list<br> >Â Â Â <a href="mailto:Elec-trak@cosmos.phy.tufts.edu" target="_blank" moz-do-not-send="true">Elec-trak@cosmos.phy.tufts.edu</a> <mailto:<a href="mailto:Elec-trak@cosmos.phy.tufts.edu" target="_blank" moz-do-not-send="true">Elec-trak@cosmos.phy.tufts.edu</a>><br> >Â Â Â <a href="https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak" rel="noreferrer" target="_blank" moz-do-not-send="true">https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak</a><br> > <br> > <br> > <br> > _______________________________________________<br> > Elec-trak mailing list<br> > <a href="mailto:Elec-trak@cosmos.phy.tufts.edu" target="_blank" moz-do-not-send="true">Elec-trak@cosmos.phy.tufts.edu</a><br> > <a href="https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak" rel="noreferrer" target="_blank" moz-do-not-send="true">https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak</a><br> > <br> <br> _______________________________________________<br> Elec-trak mailing list<br> <a href="mailto:Elec-trak@cosmos.phy.tufts.edu" target="_blank" moz-do-not-send="true">Elec-trak@cosmos.phy.tufts.edu</a><br> <a href="https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak" rel="noreferrer" target="_blank" moz-do-not-send="true">https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak</a><br> </blockquote> </div> <br> <fieldset class="mimeAttachmentHeader"></fieldset> <br> <pre wrap="">_______________________________________________ Elec-trak mailing list <a class="moz-txt-link-abbreviated" href="mailto:Elec-trak@cosmos.phy.tufts.edu">Elec-trak@cosmos.phy.tufts.edu</a> <a class="moz-txt-link-freetext" href="https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak">https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak</a> </pre> </blockquote> <p><br> </p> </body> </html>