>Hello, I seem to have a problem with my oil pressure.
>My shop manual says that while driving at speeds over
>30MPH oil pressure should be between 65-75psi I am
>running at about 45psi. Is this going to hurt my
>engine? and why am I low (is this a gage problem?) at
>idle I get about 15psi (which I assume is normal)
It should not hurt the engine. Though it is indicating one or more of
several things: sear in the pump, wear in the bearings, oil pressure
regulator worn or improperly adjusted.
Try adjusting the oil pressure regulator to see if you can boost the
pressure a bit. The instructions are in the workshop manual.
>Q#2 what does "the" vaccuume line that runs from the
>carbs to the distributor do???
Your distributor has two advances, a mechanical (activated by centrifugal
force acting on weights and springs) and a vacume advance. The hose
connects the vacume advance unit to an opening behind the butterfly of a
carb.
Your engine creates a vacume and a hose to the distributor sucks the air
from one side of a diaphragm moving the plate the points sit on. A crack
in the hose or a plug can defeat the vacume advance. A crack in the
diaphragm can as well.
A Mity - Vac is useful for testing this circuit.
TeriAnn Wakeman Marigold Ltd.
Santa Cruz, California Web design, site updating, testing
webmaster@overlander.net search engine optimization, graphics
and more
http://www.overlander.net/Marigold/index.html
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