Rebuilt Ka24de low oil pressure problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

turbokouki · 02-12-2011, 05:06 AM

So i just got my car back from being rebuilt, and at idle the oil pressure is around 12psi, but with throttle it only goes up to around 15psi. Isnt it normally supposed to be around 50 in wot? It is still in the break in period so I am using cheap oil, i think its 10w-40 if i remember correctly. Any ideas to why it reads so low?

Tantwoforty · 02-12-2011, 05:16 AM

i always use the better oil in the beginning..
seems safer to me idk lol
viscosity is fine though

jacobs13 · 02-12-2011, 10:59 AM

Why would you use cheap oil? This is why everyones cars get so fucked up because people cheap out. Oil isnt very exspensive and it is 100% worth it to fork out the money for better oil. Yes 15 is way too low. Dont drive the car or youll get to pay for a new rebuild. Im not trying to shit on you btw I just dont wanna see someone waste their money on a motor for something little. Who rebuilt the motor?

nissanfreak317 · 02-12-2011, 11:04 AM

Need moar info.
Mechanical or electrical gauge?
A shop took your car and rebuilt the motor and gave it back to you with issues?
You rebuilt the motor?

turbokouki · 02-12-2011, 11:21 AM

i had andrew from 9k racing do it for me, the first time we got it in it had no oil pressure, so had to be pulled again and redone, and we figured it needs a oil change soon for the break in period, then use good quality oil. its on a mechanical gauge

Tantwoforty · 02-13-2011, 04:18 AM

He gave it to you with problems?
you took it knowing it has problems?
or they didn't take care of them before you had to come here?
...you let him pull it again after selling you a bad motor?
That sounds odd.

theres only a few reasons to have low oil pressure, and by design the ka oil pump has a pretty good life span on it to say the least.
So check your gauge.. if 2 motors have been low oil pressure consecutively that should be reason to check a gauge i would think..

where is the sensor being installed?
try a thicker oil and see if you see any change..
im not saying a oil pump cant go bad, although ive seen them seize more often than actually function and produce lower pressure..
but finding 2 from the same dude is kind of odd..

always use good oil on new engines. thats when its in its most vulnerable state.. the way it breaks in will define how long its life will be and why it will most likely fail and change it often. its worth the cost.

i hope you get it all worked out soon and dont blow it up and end up spending lots more money :/
also, you shouldn't floor it during break in period.. thats why there is such a thing.

02-12-2011, 05:06 AM	#1
turbokouki BANNED Join Date: Jan 2011 Location: southern california Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	Rebuilt Ka24de low oil pressure problem So i just got my car back from being rebuilt, and at idle the oil pressure is around 12psi, but with throttle it only goes up to around 15psi. Isnt it normally supposed to be around 50 in wot? It is still in the break in period so I am using cheap oil, i think its 10w-40 if i remember correctly. Any ideas to why it reads so low?

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02-12-2011, 05:16 AM	#2
Tantwoforty Nissanaholic! Join Date: May 2009 Location: Riverside ca Age: 31 Posts: 1,890 Trader Rating: (20) Feedback Score: 20 reviews	i always use the better oil in the beginning.. seems safer to me idk lol viscosity is fine though

02-12-2011, 10:59 AM	#3
jacobs13 Zilvia FREAK! Join Date: May 2009 Location: Long Beach Age: 29 Posts: 1,061 Trader Rating: (27) Feedback Score: 27 reviews	Why would you use cheap oil? This is why everyones cars get so fucked up because people cheap out. Oil isnt very exspensive and it is 100% worth it to fork out the money for better oil. Yes 15 is way too low. Dont drive the car or youll get to pay for a new rebuild. Im not trying to shit on you btw I just dont wanna see someone waste their money on a motor for something little. Who rebuilt the motor?

02-12-2011, 11:04 AM	#4
nissanfreak317 Zilvia Junkie Join Date: Apr 2008 Location: Souderton, PA Age: 35 Posts: 597 Trader Rating: (18) Feedback Score: 18 reviews	Need moar info. Mechanical or electrical gauge? A shop took your car and rebuilt the motor and gave it back to you with issues? You rebuilt the motor?

02-12-2011, 11:21 AM	#5
turbokouki BANNED Join Date: Jan 2011 Location: southern california Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	i had andrew from 9k racing do it for me, the first time we got it in it had no oil pressure, so had to be pulled again and redone, and we figured it needs a oil change soon for the break in period, then use good quality oil. its on a mechanical gauge

02-13-2011, 04:18 AM	#6
Tantwoforty Nissanaholic! Join Date: May 2009 Location: Riverside ca Age: 31 Posts: 1,890 Trader Rating: (20) Feedback Score: 20 reviews	He gave it to you with problems? you took it knowing it has problems? or they didn't take care of them before you had to come here? ...you let him pull it again after selling you a bad motor? That sounds odd. theres only a few reasons to have low oil pressure, and by design the ka oil pump has a pretty good life span on it to say the least. So check your gauge.. if 2 motors have been low oil pressure consecutively that should be reason to check a gauge i would think.. where is the sensor being installed? try a thicker oil and see if you see any change.. im not saying a oil pump cant go bad, although ive seen them seize more often than actually function and produce lower pressure.. but finding 2 from the same dude is kind of odd.. always use good oil on new engines. thats when its in its most vulnerable state.. the way it breaks in will define how long its life will be and why it will most likely fail and change it often. its worth the cost. i hope you get it all worked out soon and dont blow it up and end up spending lots more money :/ also, you shouldn't floor it during break in period.. thats why there is such a thing.