[Healeys] Magnetic sump nut

[Michael Salter]

I agree with Richard with respect to engine drain plugs although I always
install them myself.
The same is not the case with gearboxes. Because of the abuse meted out to
the unsyncronized 1st and reverse gears in Healey boxes chips of hardened
steel frequently circulate within the gearbox oil and invariably eventually
find their way into the laygear needle roller bearings upon which they
wreak havoc. The overdrive units originally featured magnets at the drain
plug but even if these are in place, as they frequently aren't,  they don't
seem to gather up all those chips quickly enough.
Installing a rare earth magnet on the gearbox drain plug is a very
worthwhile exercise.

On Sat., Jan. 11, 2025, 6:13 a.m. Simon Lachlan via Healeys, <
healeys at autox.team.net> wrote:

> MAGNETIC DRAIN PLUG - OIL SUMP
> <
> https://www.ahead4healeys.co.uk/MAGNETIC-DRAIN-PLUG---OIL-SUMP-id5724.aspx
> >
>
>  Hi,
> I have just ordered one of these rather on the "why not, can't do any harm"
> basis. My question is rather along the lines of "is this thing designed to
> solve a problem that doesn't exist?" ie doesn't the oil filter catch all
> the
> little bits while the big bits sink into the primordial ooze at the bottom
> of the sump? I, for example, having a PBR servo and a modern starter have
> room for a vast spin-on oil filter down there which could catch most
> things.....
>
> And my hope is that it has a regular size AF bolt head rather than the
> oddity on the factory fitted one? Does anybody have any input on that?
>
> Have these things been around forever and I've just never come across them
> or are they quite new?
>
> Simon
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