Jump to content
SAU Community

Forged Engine Using Oil

sickr33

By sickr33,
in Engines & Forced Induction

 Share

Recommended Posts

Blitz Grand Master

Blitz

Posted
Posted

i jacked the car up nice and high to day and i have noticed i have an oil leak

it appears to be the return oil line for the front turbo.

general area around is oily but not dripping!

i am pleased to have found this as i have a new set of gt2860-5 along with Tomei manifolds and dumps to go in the next 2 weeks

i hope this is the only oil consumption

That may be part of it, but I wouldn't go getting excited and fitting new turbos and manifolds until you have the root cause correctly diagnosed.

Don't half do it, have the leak down test done by a competent workshop.

SECURITY Grand Master

SECURITY

Posted
Posted

i dont think a leaking oil return would result in your breather collecting that much oil. i know you've got a case of wishful thinking but if you make the hard decisions early you can save yourself more damage being done to the motor.

dont learn the hard way.

horrace Rising Star

horrace

Posted
Posted

Just so you know, nissan spec for oil consumption is 1L every 2000kms. Anything higher then that is deemed unacceptable. However you blowing smoke, so i would be gettin a leak down test asap.

1L in 2000 km's, you serious? Maybe in a 300,000+ km engine it would be acceptable

Duncan Grand Master

Duncan

Posted
Posted

Just so you know, nissan spec for oil consumption is 1L every 2000kms. Anything higher then that is deemed unacceptable.

No, it's even worse that that!

Nissan say acceptable is 1l per 1,000klm. We fought with them for year about our 350z which did exactly that, they never fixed it.

Rolls Grand Master

Rolls

Posted
Posted

1L in 2000 km's, you serious? Maybe in a 300,000+ km engine it would be acceptable

The old LS1s all consumed almost 1L/1000kms which is why half them had to be warrantied, there is still quite a few going around that couldn't get warranty using almost that much oil though.

gtr fan Experienced

gtr fan

Posted
Posted

No, it's even worse that that!

Nissan say acceptable is 1l per 1,000klm. We fought with them for year about our 350z which did exactly that, they never fixed it.

A new car used 1L/1000KM???

Did they eventually sort it out after 1 year?

Stories like that make me never want to buy a brand new car. We did about 3 years ago and its been really good, but it was always in the back of my mind if something major went wrong car manufactures can make life very difficult.

P.S. Sorry to go off topic.

Regarding the bloke who started the thread, are you getting the leakdown test done. Surely a workshop could do this at short notice for you or even the engine builder could do it for you??

STATUS Grand Master

STATUS

Posted
Posted

Just so you know, nissan spec for oil consumption is 1L every 2000kms. Anything higher then that is deemed unacceptable. However you blowing smoke, so i would be gettin a leak down test asap.

thats a warranty cop out (all manufacturers have the same clause), i worked for nissan and depending on the attitude of the customer and its previous use we made report, then a decision was made to replace or build engine. We actually replaced a few blown nizpro engines under warranty for the special edition 200sx-R's they built 10--odd years back.

sickr33 Rising Star

sickr33

Posted
  • Author
Posted

i took the car back to south side engine center today

they did comp test (4psi of variance across all 6 cylinders)

leak-down test (6-7% leak down across all 6 cylinders)

put a camera down the spark plug holes to inspect the bores and condition of the pistons.

and all looked sweet i had a look myself!!.

conclusion i have been told to put my new turbos on

put new O2 senors in

change oil and get tuned car tuned asap as it is running too rich witch may be washing oil from the bores

so as it stands i'm very happy with the result.

Don Dada Mentor

Don Dada

Posted
Posted

Just so you know, nissan spec for oil consumption is 1L every 2000kms. Anything higher then that is deemed unacceptable. However you blowing smoke, so i would be gettin a leak down test asap.

Is this info in the owners manual???

the leak down is pretty bad?

My 100,000 old RB25DET engine that ran 200rwkw for about 2 years had 2% leak down across all 6.

I guess different testers would give different values but i would think what is more important like compression test, is the variance between individual cyls ?

marksuxass Collaborator

marksuxass

Posted
Posted

i took the car back to south side engine center today

they did comp test (4psi of variance across all 6 cylinders)

leak-down test (6-7% leak down across all 6 cylinders)

put a camera down the spark plug holes to inspect the bores and condition of the pistons.

and all looked sweet i had a look myself!!.

conclusion i have been told to put my new turbos on

put new O2 senors in

change oil and get tuned car tuned asap as it is running too rich witch may be washing oil from the bores

so as it stands i'm very happy with the result.

Hmm. We have had a petrol navara in at work which had a problem with using excessive oil. Liased with nissan's techline and told us to do a ECU relearn with a patch file they sent us. Apparently one of the banks reads a little leaner then the other, and this can cause excessive oil consumption. Did the relearn and its seemed to fix the problem.

Is this info in the owners manual???

I guess different testers would give different values but i would think what is more important like compression test, is the variance between individual cyls ?

The info is not in the owners manual. Basically had to ask one of the nissan engineerers for the specs.

DVS JEZ Grand Master

DVS JEZ

Posted
Posted

Hmm. We have had a petrol navara in at work which had a problem with using excessive oil. Liased with nissan's techline and told us to do a ECU relearn with a patch file they sent us. Apparently one of the banks reads a little leaner then the other, and this can cause excessive oil consumption. Did the relearn and its seemed to fix the problem.

did they explain why a lean mixture will cause oil consumption?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • MBS206
      R32 Gtst - Track Car

      By MBS206 · Posted

      Biggest thing is you're okay!   It sounds like between the accident, and the drive home, it was a pretty torturous trip again! On the bright side, you took the opportunity to enjoy the event more from the perspective of a spectator, than as an entrant!   Sad to see so much damage to the car. It really has taken a HUGE hit in the front end. If/when you choose to repair, hopefully the rails are straight (At least from shock tower backwards). Hopefully the extra cage coming through there has save most of the chassis rails, and HOPEFULLY saved the motor too. Best of luck when you eventually get motivated to start pulling it down to check it all out
    • MBS206
      Slight brake pedal stutter after new pads

      By MBS206 · Posted

      Sounds more like what Brad said, that it's mainly transfer. What pad bed in procedure did you use, and did you replace/machine the rotors, or just swap pads?
    • PranK
      Slight brake pedal stutter after new pads

      By PranK · Posted

      The stutter is almost entirely in the pedal. I don't feel the brakes release and reapply as you would with ABS engaging but the pedal feels that way, without the brakes releasing. It only lasts for less than a second and the pedal is fine again. It's hard to explain, sorry.  I'll get under this weekend and just double check everything is tight. Fluid is at max where I left it.
    • MBS206
      Slight brake pedal stutter after new pads

      By MBS206 · Posted

      What bedding in procedure did you use?   When you say stutter, what exactly do you mean? Like it feels like someone letting go of the brakes momentarily and regrabbing them again to get you to stop? Re-reading your post, and that is what it kind of makes me think you're explaining, like theres a little bit of a jolt, likely just as you're reaching a stop. I've only had this issue once. And if its caused by what caused mine, you will want to get the car up on stands again and check it over. Mine was a case of a caliper mounting bolt coming out and letting the caliper rotate on the other remaining bolt and gave play in a wheel as it came to a stop. But not every stop either!
    • bcozican
      R32 Gtst - Track Car

      By bcozican · Posted

      Yeop... binned it   This will be a summary will not many pics atm and cbf  Fixed the samsonas - it was totally munched Put a new precision 7675 T4 on with proper split pulse mani Got to Sydney to get to car - drove to canberra to get racecar - drive back to sydney that night Next day all day at Plasmaman putting on new clamps cleaning some things up and adding another large engine oil cooler sitting at the rear above diffuser to keep things cooler Next day - Tuesday - on Dyno - killer wikid awesome pumped out really good numbers - more mid range and on lower boost levels Wednesday - first prac - all day again getting the suspension right - had to borrow front suspension again - out do a lap come in - out do a lap - in - what i had just couldnt handle the load at the more consistent higher speeds - got a lap in at the end of the day that was pretty reasonable  Put it this way that lap wouldve had me in 4th in Pro am for the whole event - with only 700 hp and used tyres Thurs first official prac day - lap out warm up - then entered a hotlap with above setting and 80% effort took corners 1,2,3 and into 4 car felt awesome -  rear came around out of nowhere bang into the wall near front on at whatever 140 kmph Done, over, gone Just one of those how did that happen apparently as all indications show nothing out of the ordinary Got to spend the rest of the time at the event like I hadnt done before - was actually Ok mainly as I had my family and my boy is 9 and got treated like a rockstar Long trip home, lost a trailer wheel in nowhere land, X5 airbag suspension gave up half way across nullabour and rode on bumps stops (its now completely fine) had to do a 19 hr drive day on day 3 as accommodation got screwed up so just had to keep driving till found a town with some Now to reassess - hopefully the motor and other things are OK but yet to be seen too. There is no easy fix there is no i'll just order that part and get it sent - we'll have a talk to people see what can happen and what the go is but at minimum its rebuild from scratch struts forward and alot of time effort and $ should and if I return and if but maybe/ when  I have the cage tied into the front strut towers - if I didnt have that things couldnt been worse you can say its just a front end but if you know what goes into these cars... you'll know what that actually means in reality   Car was very fast. Disappointing we just didnt get to show it Effort doesnt win you races though     Apparently this is motorsport !  
×
×
  • Create New...