low oil pressure at idle

[pasquale pilato]

Good morning group,
A few weeks ago, we had a very nice warm day, and I
went driving in the 1990 100q (about 130k).  The oil
temp went above the first hash mark (100c I think) for
the first time in months.  I stopped to talk to a
friend mowing her yard and at idle the oil pressure
light came on.  With a little revs, about 1800rpm I
have almost 2 bar, but at idle not much.  I use mobil
1 15-50 all year round.  When I got home the first
thing I did was check the oil level.  Car does not
burn one drop, and in the 1000 or so miles since mny
last change oil looks clean.  One more piece to this
is that I am a little high on the dip stick.  About
1/8 inch above the fill mark on the dip stick.
Something else, I've been thinking that my ISV is on
its last leg because sometimes when I put the clutch
in to stop at a light or whatever, revs fall and car
stalls.  Sometimes the car idles very low, like
700rpm, when the car decides to idle around 1000-1200
rpm I have a little more than 1 bar of pressure.

This has me worried because short of putting axle
grease in the engine I don't think I can use it
durring the summer, being that this is my only ride, I
would like to.  Well any help is always appreciated,
thanks.

Pasquale

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