Message text written by "Westerdale, Bob"
>
>Has anyone ever tried to tap into an oil galley to monitor oil pressure? It
>might be interesting to monitor both the pressure at the filter housing and
>pressure at the 'end o' the line'.
>A large pressure difference between the two might indicate excessive bearing
>clearance, while less difference would indicate less wear in the
>bearings.... Each lubricated journal is in effect a 'leak', as far as the
>pressurized oil line is concerned. After the oil has passed a leak, its
>pressure is reduced by an amount related to the amount of oil which bled off
>through the clearance between journal and bearing. Large clearance=lots of
>oil bleed down=larger pressure drop. Of course this becomes harder to
>assess if they used a lot of flow restrictors in the line....
>Your thoughts? <
Well, I certainly think it is more accurate to measure the pressure as close as
possible
to the end point, or as close as possible to the most delicate/sensitive item.
But
for these cars we really only have what S. T. gave us. In this case, we have
to rely on the info they gave us. If the oil pressure is too low, then
something needs
to be done to correct it. Otherewise, we hope that the pressure reading is an
accurate
indicator that the parts are getting the proper lubrication.... Not always the
case....
-Tony
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