<div dir="ltr"><div class="gmail-kvgmc6g5 gmail-cxmmr5t8 gmail-oygrvhab gmail-hcukyx3x gmail-c1et5uql gmail-ii04i59q" style="margin:0px;white-space:pre-wrap;font-family:"Segoe UI Historic","Segoe UI",Helvetica,Arial,sans-serif;color:rgb(5,5,5);font-size:15px"><div dir="auto" style="font-family:inherit">Hi guys, </div><div dir="auto" style="font-family:inherit"><br></div><div dir="auto" style="font-family:inherit">Does anybody know what would be the approximate appropriate mesh size of the screens used to filter engine oil feeding out of the oil tanks or frames on old British bikes (e.g., mesh size of 20, 40, 60, etc.)? </div></div><div class="gmail-cxmmr5t8 gmail-oygrvhab gmail-hcukyx3x gmail-c1et5uql gmail-o9v6fnle gmail-ii04i59q" style="margin:0.5em 0px 0px;white-space:pre-wrap;font-family:"Segoe UI Historic","Segoe UI",Helvetica,Arial,sans-serif;color:rgb(5,5,5);font-size:15px"><div dir="auto" style="font-family:inherit">I am looking at these options from McMaster-Carr: </div><div dir="auto" style="font-family:inherit"><span style="font-family:inherit"><a class="gmail-oajrlxb2 gmail-g5ia77u1 gmail-qu0x051f esr5mh6w e9989ue4 gmail-r7d6kgcz gmail-rq0escxv gmail-nhd2j8a9 gmail-nc684nl6 gmail-p7hjln8o gmail-kvgmc6g5 gmail-cxmmr5t8 gmail-oygrvhab gmail-hcukyx3x gmail-jb3vyjys gmail-rz4wbd8a gmail-qt6c0cv9 gmail-a8nywdso gmail-i1ao9s8h esuyzwwr gmail-f1sip0of gmail-lzcic4wl gmail-gpro0wi8 gmail-py34i1dx" href="https://www.mcmaster.com/filter-screens/low-pressure-bronze-y-strainers-8/?fbclid=IwAR3zzH6D3awtNoVHjkpnQ2vcwzMnH_M7fIyf4jpnLguZLAw9Kfy1FBZzfLw" rel="nofollow noopener" role="link" tabindex="0" target="_blank" style="text-decoration-line:none;outline:none;list-style:none;border-width:0px;border-style:initial;border-color:initial;padding:0px;margin:0px;background-color:transparent;text-align:inherit;display:inline;box-sizing:border-box;font-family:inherit">https://www.mcmaster.com/.../low-pressure-bronze-y.../...</a></span></div></div><div class="gmail-cxmmr5t8 gmail-oygrvhab gmail-hcukyx3x gmail-c1et5uql gmail-o9v6fnle gmail-ii04i59q" style="margin:0.5em 0px 0px;white-space:pre-wrap;font-family:"Segoe UI Historic","Segoe UI",Helvetica,Arial,sans-serif;color:rgb(5,5,5);font-size:15px"><div dir="auto" style="font-family:inherit">I have added a paper filter on the return-side, so mostly I really want to filter the debris that may come out of the frame until the paper filter has had a chance to entirely clean the reservoir. </div></div><div class="gmail-cxmmr5t8 gmail-oygrvhab gmail-hcukyx3x gmail-c1et5uql gmail-o9v6fnle gmail-ii04i59q" style="margin:0.5em 0px 0px;white-space:pre-wrap;font-family:"Segoe UI Historic","Segoe UI",Helvetica,Arial,sans-serif;color:rgb(5,5,5);font-size:15px"><div dir="auto" style="font-family:inherit">Too large of a mesh and it will not stop the debris, of course, but too small and it would restrict/block the gravity flow of the oil.</div><div dir="auto" style="font-family:inherit"><br></div><div style="font-family:inherit">Thank you very much!</div></div><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Best,<div>doug</div></div></div></div>