oil pressure odities - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

Adam Kindness · 8th September 2008, 04:11 PM

During the last trackday, and driving home yesterday I noticed some bizzare oil pressure readings in the skyline.

Cold Idle is about 6bar+
Warm idle is normally about 2bar
Steady driving is about 4bar depending on rpm obviously

The gauge hast started to not act like a second rev counter, sometimes seeing just over 2bar at 4000rpm (norm 4bar) and just over 1bar on warm idle.

Switch the car off, restart and it goes from 1bar to 2bar idle.

Same oil as before (Valvoline synth 10w60), but this has seemed to have been occuring since the last oil change. (oil, oil filter and flush of cooler)

I have a feeling that the gauge (standard 18yr old dash one) is just playing up, but cant help being a bit nervous about it. Other thoughts i have are maybe when the thermo sandwitch plate opens to feed the cooler, its dropping pressure. Never noticed before though.

Anyone got thoughts on my issues? (oh, its a Nismo Oil Pump)

M SKinner · 8th September 2008, 04:34 PM

Sounds like the sender to me. Apparantly its really common. Mine used to do it but suddenly sorted itself out

Andy_ran · 8th September 2008, 04:58 PM

I had exactly the same problem with mine about 1 year ago. Panic sets in!! It was the sender on mine so i upgraded to a Defi pressure gauage.

That works perfectly. The dash one still plays up to this day!

pupsi · 8th September 2008, 05:34 PM

As said before the original gauge or sender are really not up to scratch, hence why a lot of people fit after market gauges, namely the Defi range.

alex2005 · 8th September 2008, 05:50 PM

Mine does exactly the same. I shit myself the first time as I have just rebuilt my engine.

Next time it does it open the bonnet and tap the sender with a spanner, thats what I done with mine and up shoots the needle.

SamuraiSam · 8th September 2008, 08:03 PM

Encountered this problem on my friends R32; replaced the pressure sending unit to no avail, replaced the actual gauge unit inside the top din in the center console/dashboard & problem solved.

Adam Kindness · 8th September 2008, 09:35 PM

a decent gauge is on the list.... cheers

miragev · 9th September 2008, 12:19 PM

yes mate my 32gtr oil pressure gauage is the same very erattic to say the least.... i'm sure they all are ...i fitted a greddy direct feed problem sorted ..

8th September 2008, 04:11 PM	#1 (permalink)
Adam Kindness GTR Register Member Join Date: Jun 2002 Location: Aberdeen Posts: 2,210	oil pressure odities During the last trackday, and driving home yesterday I noticed some bizzare oil pressure readings in the skyline. Cold Idle is about 6bar+ Warm idle is normally about 2bar Steady driving is about 4bar depending on rpm obviously The gauge hast started to not act like a second rev counter, sometimes seeing just over 2bar at 4000rpm (norm 4bar) and just over 1bar on warm idle. Switch the car off, restart and it goes from 1bar to 2bar idle. Same oil as before (Valvoline synth 10w60), but this has seemed to have been occuring since the last oil change. (oil, oil filter and flush of cooler) I have a feeling that the gauge (standard 18yr old dash one) is just playing up, but cant help being a bit nervous about it. Other thoughts i have are maybe when the thermo sandwitch plate opens to feed the cooler, its dropping pressure. Never noticed before though. Anyone got thoughts on my issues? (oh, its a Nismo Oil Pump)

8th September 2008, 04:34 PM	#2 (permalink)
M SKinner GTROC Member Join Date: Feb 2007 Location: Croydon, Surrey Posts: 601	Sounds like the sender to me. Apparantly its really common. Mine used to do it but suddenly sorted itself out __________________ Matt Skinner R32 GTS-4, R32 GT-R project

8th September 2008, 05:50 PM	#5 (permalink)
alex2005 GTROC Member Join Date: Jun 2007 Location: In the Garage Posts: 622	Mine does exactly the same. I shit myself the first time as I have just rebuilt my engine. Next time it does it open the bonnet and tap the sender with a spanner, thats what I done with mine and up shoots the needle. __________________ not just a car, a responsibility! My rebuild thread http://www.gtr.co.uk/forum/96129-r32-gtr-engine-bay-makeover-rebuild.html

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8th September 2008, 04:58 PM	#3 (permalink)
Andy_ran GTR Register Member Join Date: Jun 2005 Location: Kent Posts: 271	I had exactly the same problem with mine about 1 year ago. Panic sets in!! It was the sender on mine so i upgraded to a Defi pressure gauage. That works perfectly. The dash one still plays up to this day!

8th September 2008, 05:34 PM	#4 (permalink)
pupsi GTROC Member Join Date: Aug 2006 Location: West London Posts: 1,912	As said before the original gauge or sender are really not up to scratch, hence why a lot of people fit after market gauges, namely the Defi range.

8th September 2008, 08:03 PM	#6 (permalink)
SamuraiSam GTR Register Member Join Date: Oct 2007 Posts: 390	Encountered this problem on my friends R32; replaced the pressure sending unit to no avail, replaced the actual gauge unit inside the top din in the center console/dashboard & problem solved.

8th September 2008, 09:35 PM	#7 (permalink)
Adam Kindness GTR Register Member Join Date: Jun 2002 Location: Aberdeen Posts: 2,210	a decent gauge is on the list.... cheers

9th September 2008, 12:19 PM	#8 (permalink)
miragev GTR Register Member Join Date: Apr 2007 Location: greece Posts: 638	yes mate my 32gtr oil pressure gauage is the same very erattic to say the least.... i'm sure they all are ...i fitted a greddy direct feed problem sorted ..