<div dir="ltr"><div class="gmail_default" style="color:#3333ff">There are also magnetic jackets that go around the exterior of engine canister (spin-on) oil filters though you would not be able to determine what if anything <i>additional </i>was collected by the magnet.</div><div class="gmail_default" style="color:#3333ff">In any case I generally cut apart my oil filters and examine the filter media for shiny bits of bearing surfaces.</div><div class="gmail_default" style="color:#3333ff"><br></div><div class="gmail_default" style="color:#3333ff">Best--Michael Oritt</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Mon, Jan 13, 2025 at 1:12 PM Richard Mayor <<a href="mailto:boyracer466@gmail.com">boyracer466@gmail.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">Yes, they have been around forever.  Race cars almost always use a magnetic plug because if there is any steel flowing around in the oil we want to see it. A magnetic plug will usually catch some of that and it can be readily observed when the plug is removed for an oil change.<br>
<br>
Is it necessary?  No.   Is it nice to have?  The better question is:  Do you care?<br>
<br>
Sent from my iPad<br>
<br>
> On Jan 11, 2025, at 3:12 AM, Simon Lachlan via Healeys <<a href="mailto:healeys@autox.team.net" target="_blank">healeys@autox.team.net</a>> wrote:<br>
> <br>
> MAGNETIC DRAIN PLUG - OIL SUMP<br>
> <<a href="https://www.ahead4healeys.co.uk/MAGNETIC-DRAIN-PLUG---OIL-SUMP-id5724.aspx" rel="noreferrer" target="_blank">https://www.ahead4healeys.co.uk/MAGNETIC-DRAIN-PLUG---OIL-SUMP-id5724.aspx</a>><br>
> <br>
> Hi,<br>
> I have just ordered one of these rather on the "why not, can't do any harm"<br>
> basis. My question is rather along the lines of "is this thing designed to<br>
> solve a problem that doesn't exist?" ie doesn't the oil filter catch all the<br>
> little bits while the big bits sink into the primordial ooze at the bottom<br>
> of the sump? I, for example, having a PBR servo and a modern starter have<br>
> room for a vast spin-on oil filter down there which could catch most<br>
> things.....<br>
> <br>
> And my hope is that it has a regular size AF bolt head rather than the<br>
> oddity on the factory fitted one? Does anybody have any input on that?<br>
> <br>
> Have these things been around forever and I've just never come across them<br>
> or are they quite new?<br>
> <br>
> Simon<br>
> <winmail.dat><br>
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</blockquote></div>