[Mgs] Paper or Felt Oil FIlters

[Maynard Hirsch]

IIRC, the take off for oil pressure is downstream from the filter.  Therefore,
an increase in oil pressure would be do to increased flow through the filter.

In another life, I worked for a company that sold filters.  There were
basically two types-a surface filter with pores of a specific size that would
stop particles bigger than the holes.  The other type was a depth filter,
which trapped particles as they hit the fibers.  Picture the first type a
sieve and the second type as a thick forest.  If you were to fire a rifle into
a forest, the bullet is apt to hit a tree rather than pass through the forest.
Depth filters give better flow and have a larger capacity to hold particles.

Modern screw on filters are surface types, the felt is a depth filter.

Maynard