@#$&% oil buzzer................9mm pointed at dash......

[roclist@accessconsulting.ca (Jason Adams)]

Been smacking the dash for years....

Finally put in a oil pressure gauge, seems to be a little low but the buzzer
still goes off even though the sensor isn't hooked up... I'm too lazy to
find the faulty wires :) if it dies, it dies...

btw pressure is ~1.9 +/- 0.1 bar at 2000 rpm with oil temp @ 68° +/- 2° C
and 10W30 oil... as per bentley.

When I go to 20W50, This should improve pressure, but am I only masking the
problem?

Jason Adams
Fahrvergnugen Forever!


----- Original Message -----
From: "Jonas K." <jkarlsso@metabolex.com>
To: "Ryan Ruggles" <ryanruggles@uniserve.com>; "scirocco list"
<scirocco-l@scirocco.org>
Sent: Tuesday, May 21, 2002 11:23 AM
Subject: Re: @#$&% oil buzzer................9mm pointed at dash......


> On 5/21/02 9:57 AM, "Ryan Ruggles" <ryanruggles@uniserve.com> wrote:
>
> > I've got a bad oil buzzer circuit in my dash.  I know it's a dash
problem
> > because even when I disconnect the sensors in the engine bay it stays
on.
>
> Did you follow the procedure in the bentley? The switch on the oil filter
> flange is closed-to-ground at pressures above 1.8 bar. If pressure drops
> below this, then it is open. If this circuit is open at above 2000 RPM,
then
> the oil buzzer will go off. Once the buzzing starts it will stay on for
> quite a while, even if RPM's drop below 2000.
>
> Try _grounding_ the wire from that sensor. If it still starts to buzz when
> you rev above 2000 RPM, then there is a problem with the wiring, perhaps
the
> wire is bad, or the control unit could be fried. If the buzzing is gone,
> then the switch is bad, or you don't have oil pressure. This switch is a
> common failure.
>
> > When I smack the dash it turns off for a while.  It is intermittent and
it
> > pisses me off.
>
> Weird, dunno what to say about that. But quit smacking the dash, odds are
> you'll break something else in short order.
>
> If the problem really is in the control unit, then I'd think twice about
> simply disabling the buzzer. Even if you have a gauge, you won't notice a
> sudden drop in oil pressure until it's too late. If you care about the
> motor, fix it right.
>
> HTH,
> Jonas
>
>
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