Low Oil pressure

[leeroy_25]

I have a 93 FD3. I appear to have very low oil pressure on warm idle.. I say this.. It\'s not always like that! some times it sits just under 2kg/cm.. then others it may drop to just above 0! as soon as you touch the throttle though it goes up to 4kg/cm or more.. And when around 5000rpm yo have 6kg/cm plus. Is this normal.. The gauge does seem to jump about a bit when idling. Are the factory guages reliable? I have an oil leak on one of my turbo\'s so I imagine I may be loosing a bit of pressure through that possibly?

Also I reckon the oil has possibly thinned a bit.. possibly got a bit of petrol contamination. Very hard to say. Is it normal to get a bit of petrol in the oil or is that not possible on the rotary setup? If it is, but bad, let me know what the cause is!

Thanks
Lee

[hairyhoover]

is this on the stock sensor and gauge? if so the sensor isnt that great try taking it out and cleaning it up.

[leeroy_25]

Yes it\'s all stock..  Will take it out and clean it when I do my oil change!

[logicalChimp]

heh - that behaviour is pretty stock

[hairyhoover]

just to let you know you can do it whenever - just make sure things are cold!

[leeroy_25]

Thank you guys for putting my mind at rest!!

[Prototype]

Mine did the same when I first got it. While I was driving and suddenly noticed I had no oil pressure but then as soon as I had chance to pull over it was back up to normal pressure.

I replaced the oil pressure sender and I\'ve never had a problem since (This was 8 years ago)

[DMDRIFTING]

How much is an oil pressure sender?

Might be worth changing mine soon, as i have the same problem!

What did you do in the end Lee?

[leeroy_25]

Hey there mate.. Not done anything yet!! no time! I have a new oil pressure guage with sender I will fit eventually! I could try the sender off my spare engine and see if it\'s any better.. just been flat out!

Lee

[ashc]

mine does this, i gota quote from mazda for a new sender recently, came in at just over £120 and they said it would be on back order, might take 8wks to arrive and i would have to pay upfront, so i put that idea on hold for a bit :-(

[DMDRIFTING]

Blimey £120 thats a little too much. Be easier to purchase a Defi Oil Pressure Gauge and add it to some other gauges :chat

[ashc]

Blimey £120 thats a little too much. Be easier to purchase a Defi Oil Pressure Gauge and add it to some other gauges :chat

yes, done that, but the duff needle in the cluster annoys me!!

[Aceman]

Blimey £120 thats a little too much. Be easier to purchase a Defi Oil Pressure Gauge and add it to some other gauges :chat

Think if you look around (not ordering from Mazda UK) you can get them for around £85 but still damn expensive!!

Mine\'s not erratic, just damn slow. It\'s response rate is awful so probably just needs a good clean, if I could be bothered..

[Shiuko]

This is what I\'d do if I had the money.



http://www.maxcooper.com/rx7/how-to/spa_gauges/index.html


Unfortunately, it doesn\'t look like I\'ll be doing it any time soon.
F@cking credit crunch!!!  :2Mad

[leeroy_25]

Hey DMDrifting..

You around tomorrow? Sunday 28th? I was thinking of driving up the top of Portsdown hill around Miday if the weather is any good. Could be a good photo op! just got a new digi cam! Let me know if you are about. Could possible go for a little drive after.

Lee