[TR] oil pressure 101

[dorpaul]

I've been told, I think, that oil pressure is not like coolant pressure, tire
pressure or the traditional use of 'pressure'.  It's concerned with volumn (of
oil) and the pressure of it.  It's somehow produced in the oil pump (and
measured there?) and, I guess, pure oil (as opposed to air and oil) are pumped
from the oii pump, up the galleries and to the rocker arm area..  Here the air
escapes thru the oil breather hole, and then oil breather pipe? or the more
modern pcv valve.

Perhaps my naive-ness doesn't need to be stated to this group, but, where does
oil pressure get measured and how? since the areas are vented?  If the valve
cover area is where the venting takes place, then why is it called crankcase
venting?

And somebody has talked about removing the breather tube?  Why wouldn't that
blow out all the seals or something?

Just the basics please...
Paul  60 TR3

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