Forged Engine Using Oil

[Blitz]

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.

[DAN00H]

Ryan, as others have mentioned, get a leak down test done. when you talk of blue smoke on acceleration, that to me means it is burning oil (as indicated above). if you are leaking oil from the return, your would have a puddle under the car...

[marksuxass]

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.

[SECURITY]

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]

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]

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]

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]

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??

[sickr33]

i will arrange for a full leak down test to be done before i pull the turbos off

[STATUS]

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.

[snozzle]

1L per 1000kms for a standard engine? that's ridiculous!

[Rolls]

1L per 1000kms for a standard engine? that's ridiculous!

That is the absolute maximum line where they consider it 'acceptable'

I would just drain another 500ml so they replaced the motor lol

[PIG747]

i work at a Honda dealership and they state the same thing. It's more to try and cover their arses but they do pay up sometimes

[sickr33]

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.

[The Mafia]

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.

[Don Dada]

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]

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]

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?

[marksuxass]

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

Nope, im pretty sure we have one in ATM. Ill raise the question with them