> I just recently purchased a beautiful 73
> 240z. It drives wonderfully but the oil
> pressure gauge has me confused. The car
> idles at 500rpm and in stop and go traffic
> when I sit for awhile the oil pressure gauge
> drops to 0 as soon as I move and the rpm get
> to 1000+ it returns to normal levels. Is
> this a gauge thing or should I be alarmed?
Tod,
Relax.
You've just discovered the notoriously bad oil pressure sending unit that afflicts early Z's.
It does exactly as you describe.
If it really bugs you--you can get a new Nissan oil pressure sending unit that will give you the correct reading(but the thing is about $56!)
Don't get the ten dollar aftermarket jobs from your local parts superstore--it will be worse than the unit you have now!
I went that route--and ended spending the $56 anyway buying the real Nissan job.
John
> 240z. It drives wonderfully but the oil
> pressure gauge has me confused. The car
> idles at 500rpm and in stop and go traffic
> when I sit for awhile the oil pressure gauge
> drops to 0 as soon as I move and the rpm get
> to 1000+ it returns to normal levels. Is
> this a gauge thing or should I be alarmed?
Tod,
Relax.
You've just discovered the notoriously bad oil pressure sending unit that afflicts early Z's.
It does exactly as you describe.
If it really bugs you--you can get a new Nissan oil pressure sending unit that will give you the correct reading(but the thing is about $56!)
Don't get the ten dollar aftermarket jobs from your local parts superstore--it will be worse than the unit you have now!
I went that route--and ended spending the $56 anyway buying the real Nissan job.
John
