Carter, try it with a FRAM PH16 on a Spit and I'll bet when you remove it, the
filter will be empty!
Joe
Carter Shore wrote:
>
> Here's a question:
> In order for the oil to drain out of the filter, it
> must be replaced by an equal volume of air (since oil
> is largely incompressible).
> So where does the air come from? The pressure side of
> the filter from the pump is filled with oil, the gears
> in the pump block the path, and the inlet is submerged
> below the surface of the oil in the sump. The outlet
> side of the filter is also filled with oil, which runs
> over around and through the oil galleys, and out to
> the bearings. The bearings are fitted with clearances
> of only a few thousandths of an inch.
>
> Seems to me that gap between the the bearings and
> journals provide the only path by which air could
> enter the system. Given the viscosity of oil, it's
> affinity for sticking to metal surfaces, and the
> tortuous path that it must traverse, I wonder how much
> of an issue this is.
>
> I've removed filters from motors that have sat for
> years, full of (ugly dirty) oil.
>
> IMWTK
>
> Carter
///
/// spitfires@autox.team.net mailing list
/// To unsubscribe send a plain text message to majordomo@autox.team.net
/// with nothing in it but
///
/// unsubscribe spitfires
///
///
|