brett at cloud9.net
Tue Jan 22 19:59:52 PST 2008
On Jan 22, 2008, at 3:40 PM, Matthew Barrett wrote:
> For the last two months, when I have turned the key to the "on"
> position, the oil pressure gauge would jump up to 5 bar, which as
> far as
> my understanding takes me is normal.
Nope. It should not display any pressure with the engine off, ever.
If it indicates 5 bar with the ignition off, you have a wiring
problem, dash/gauge problem, or a failing sensor.
> (It burns a quart every 500 miles)
That is astonishingly high oil consumption for a 3B. Figure out where
it is going. If it's burning in the combustion chamber and leaving
deposits, you're artificially increasing the compression ratio and
'hot spots' for preignition. This is also a great way to kill off the
O2 sensor and the catalytic converters.
If you're filling it to the max line- don't. It's marked "maximum",
not "fill me to here" ;-) Half-way between min and max should be
> Now the oil pressure gauge barely moves when I turn the key
> to the "on" position. As soon as I start her up, oil pressure jumps up
> to 5 bar
That's the correct behavior.
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