leigh_boy Posted October 6, 2016 Posted October 6, 2016 long story short, oil pressure was low, i changed the sensor.. no good so i booked it in at abbey for this monday coming. How ever my dad today took the car and got the oil galley gaskets changed for me as a thank you for something else ( i had bought the parts) I got home from work and found this out. i thought awesome. Got in the car started it.. 120psi on the gauge.. thought was a bit high . let it sit and as it warmed up it sits just below 30 all warmed up. went for a little drive 2K rpm was showing 60 PSI .. 3.5K rpm was showing 120 psi whats happened has something got blocked up and causing the high pressure? if so where do i go looking as i think all the oil lines are internal...? or has the pod in the car failed and over reading? Il be calling abbey in the morning but im to worried to drive it now. Quote
ZMANALEX Posted October 6, 2016 Posted October 6, 2016 Best to get an external oil pressure gauge hooked up to get a true oil pressure reading. Replacement of faulty galley gaskets will significantly increase the oil pressure. What oil brand and viscosity are you running and also what oil filter ? Should be safe to drive to Abbey, but talk to them first. Quote
leigh_boy Posted October 6, 2016 Author Posted October 6, 2016 Best to get an external oil pressure gauge hooked up to get a true oil pressure reading. Replacement of faulty galley gaskets will significantly increase the oil pressure. What oil brand and viscosity are you running and also what oil filter ? Should be safe to drive to Abbey, but talk to them first. how can it cause it to be high? * just so i can understand ( its just a paper gasket. nissans 5/30 im trying to find a gauge to test my self... are the pods known to over read and go faulty? thanks Quote
ZMANALEX Posted October 6, 2016 Posted October 6, 2016 (edited) The galley gaskets are internal gaskets and if faulty the oil pressure will suffer. Replacing the gaskets rectifies this issue. Is that not the reason why you replaced the galley gaskets ? The oil pressure gauge may be faulty, however more chance that it is the oil pressure sender switch. Get the oil pressure checked with a stand alone gauge. And remember that you do not have a problem until you have a problem. PS: Nissans "own" 5W30 is low quality oil. Edited October 6, 2016 by ZMANALEX Quote
leigh_boy Posted October 6, 2016 Author Posted October 6, 2016 The galley gaskets are internal gaskets and if faulty the oil pressure will suffer. Replacing the gaskets rectifies this issue. Is that not the reason why you replaced the galley gaskets ? The oil pressure gauge may be faulty, however more chance that it is the oil pressure sender switch. Get the oil pressure checked with a stand alone gauge. And remember that you do not have a problem until you have a problem. PS: Nissans "own" 5W30 is low quality oil. ah sorry i got confused.. i thought u was saying the new gasket could be faulty..( tired) we have just checked with the old sender unit and it reads the same as the new one so im happy it not the sender . I hope its the pod.. but i cant see any one online to have had the same issue. Quote
ZMANALEX Posted October 6, 2016 Posted October 6, 2016 Others with HRs have had similar pressure indifferences after replacing the gaskets. Quote
leigh_boy Posted October 6, 2016 Author Posted October 6, 2016 Others with HRs have had similar pressure indifferences after replacing the gaskets. oh really.. any idea on what the "fixes" were? ps i really appreciate the replys. Quote
Richf Posted October 7, 2016 Posted October 7, 2016 Is 120 psi an issue ? I thought thats where they go to anyhow on a good engine 1 Quote
jimboy2 Posted October 7, 2016 Posted October 7, 2016 All I can remember is normal is 60mph in 6th should read 60psi (I think that's right) Quote
leigh_boy Posted October 7, 2016 Author Posted October 7, 2016 it does but as soon as you go to 3000 rpm it sky rockets Quote
leigh_boy Posted October 7, 2016 Author Posted October 7, 2016 Ok been for a 50 mile drive and things have changed,.. do these numbers seem right? idle 28 psi 2.5 k rpm 60 ( or just over) 3k RPM 80psi 4k 90 5k 100 6k 110 7.5 115 Quote
Dave6188 Posted October 8, 2016 Posted October 8, 2016 Pretty much the same as mine after oil gallery gaskets were done so I reckon you have nothing to worry about. Seems normal to me. Quote
davey_83 Posted October 8, 2016 Posted October 8, 2016 Seems like a good variation between engine rpm, nowt to worry about. Quote
Xelotath Posted October 8, 2016 Posted October 8, 2016 Those pressures are about the same as mine after the gaskets were changed. Cold start is 110-120, once warm idle is just under 30, 2k revs is 60, and 3k around 80 Quote
Mark@Abbey m/s Posted October 8, 2016 Posted October 8, 2016 (edited) Oil Pressure HR motor from Nissan Workshop Manual. So even with good oil passage gaskets they only expect 14psi at idle with 80deg C oil pressure And 43psi @ 2000rpm Lee car is showing double this. Edited October 8, 2016 by Mark@Abbey m/s Quote
ZEUS Posted October 8, 2016 Posted October 8, 2016 Take it to Abbey and let them take a look at it for piece of mind. Quote
ATTAK Z Posted October 8, 2016 Posted October 8, 2016 Take it to Abbey and let them take a look at it for piece of mind. has to be done I'm afraid ... peace soz Quote
Roscoe Posted October 8, 2016 Posted October 8, 2016 Your pressures are fine. Sent from my iPhone using Tapatalk Quote
leigh_boy Posted October 9, 2016 Author Posted October 9, 2016 I posted on the 350z Facebook page, loads of people shower their pressures all looking the same as mine so I'm happy with them Quote
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