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Re: 89 200TQ Oil Guage

Small, Jason wrote:
> Date: Sun, 17 Jan 1999 20:09:32 -0600
> From: ""P-O Selander (EUS)"" <EUSPOS@am1.ericsson.se>
> Subject: 89 200TQ Oil Guage
> Driving down a Boulder street one rainy evening, my oil can picture
> appeared on the multi-function display.  I was not terribly concerned as
> this happens from time to time, especially within the first few minutes
> of startup as with Pat Korach and maybe Scott Miller.  However, I always
> glance at the gage to confirm that I have no reason for concern.  This
> time, instead of my pressure reading normal to high, it was low and
> dropping lower.  Of course I immediately pulled over and shut down the
> engine.  Looking under the engine revealed a gushing wound from some
> heretofore unnoticed shrouding in the front right area.  Lo and behold,
> I do have an external oil cooler.  Bentley does not outright say the NF
> engine does not have an oil to air cooler, but in the diagrams, this
> cooler is shown on the MC engine and not on the NF engine.  Apparently,
> the cooler had burst from inside the finned area and needed replacement.
> Now I am inclined to allow an extended warm-up time and I am even more
> gentle with the throttle during the first five minutes of driving when
> the oil pressure gage is above 5 bar.  Pat Korach, have you learned more
> about the root causes of your oil pressure warnings?
> Jason Small
> Boulder, CO
> 1989 100Q


I haven't fixed my oil guage problem yet (Too Rainy out).  I was
e-mailed that the it is grounding problem.  It has not been a priority
because the car is not my primary mode of transportation.  I did drive
it yesterday and the problem of pegging the oil gauge needle did not
arise.  But as to what P-O said the same goes for me.  Oil goes up to 5
bars for about 4 or 5 minutes when cold then drops to about 2 bars on
idle.  I would consider this normal.  I found that when I reved the
engine up the quage did not move past 5 bars when cold.  Maybe the
bypass valve is opening.  Will try to fix the problem this weekend if no

Pat Korach
Kirkland, WA