Oil pressure light

[Martin B]

Does anyone know at what oil pressure the low oil pressure warning light comes on? (ZZR 1100/1200 engine)

I think my oil pressure gauge sender is playing up as it reads really low at idle but the low pressure light doesn't come on. The light does come on before starting the engine and goes out when the engine runs so I think that is OK, it is just that I don't believe the gauge readings.

Thanks

Martin

[jpivey]

Don't know what psi the light comes on, sounds like you need a new vdo 10 bar pressure sender all I will say is do a google search and save yourself about £65!!!

[splitpin]

Some OP idiot type warning lights come on at negligible or even zero pressure.

What pressure is it reading at idle (and @ what revs if you know)?

What matters most of all is what pressure you've got at 4000rpm hot; if at that you're seeing 50 plus, even better 60, there's likely nothing at all to worry about. Often the problem of a very low reading at hot idle is because the tickover is set to a heavy flywheel car like idle speed i.e. too low for a negligible flywheel bike motor; as a rule of thumb, I'd say plus about 50% for what you might set the idle speed of the motor in your road car.

[Martin B]

ZZR1200 manual states that the oil pressure should be between 28 and 43 psi at 4000 rpm when hot (90 degrees C).

I really believe it is a sensor fault as when the gauge reads 2 psi (900 - 1000 rpm idle) the low pressure light doesn't come on!It isn't too bad when the revs are up a bit, but still seems a bit low.

I just wondered if anyone knew at what pressure the warning light should come on.

[SportsLibre]

I think that is common, mine used to be the same.

[jp-speed-triple]

tape it up.

Guages...over rated cockpit jewellery. Just drive it till it breaks. it'll break anyway, so why stress your self out?

other more valid opinions are available

[Martin B]

Does that mean you don't bother with a steering wheel either because you are going to crash anyway??

I think an oil pressure gauge is vital on a race engine, it can give an early idication that something is wrong (provided you look at it of course) and can give you a chance to have something to rebuild intead of a catastrophic blow up where nothing is salvageable.

[Count Johnny]

Martin B said:

Does that mean you don't bother with a steering wheel either because you are going to crash anyway??

You've seen JP drive, then?

[dunc_sx]

SportsLibre said:

I think that is common, mine used to be the same.

Same here.

Dunc.

[jp-speed-triple]

Martin B said:

Does that mean you don't bother with a steering wheel either because you are going to crash anyway??

I think an oil pressure gauge is vital on a race engine, it can give an early idication that something is wrong (provided you look at it of course) and can give you a chance to have something to rebuild intead of a catastrophic blow up where nothing is salvageable.

thats right. I was being serious.

[Martin B]

Here's what I have found out today!

The oil pressure sender which was on my car was an AST one (didn't know that before I ordered one), I fitted a VDO version and the oil pressure now reads backwards, 122 psi when ignition is turned on, 92 psi at idle and 70 odd when I raise the revs a bit.

Oil pressure switch is 0.1 bar

I had better get a new AST pressure sender now!

[ScottHughes]

You would have thought that the switch should be set so the light would come on if the oil pressure dropped below a minimum level while racing..? about 35 PSI say approx 2.2 Bar. If it gets to 0.1 bar or 1.4PSI then you have a real problem.