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M35 250t Turbo Removal Query

STAG250

By STAG250,
in Four Door Family & Wagoneers

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STAG250 Community Regular

STAG250

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My turbo is broke it appears (makes a funny noise and no boost pressure apparent) and I've had car only a short while. I forgot to change air filter when I bought and it turns out to be filthy. Whether this is the cause or not I am told by a turbo reconditioner that it is a possible cause.

Nissan here in Rotorua (NZ) don't have any experience of this model and are suggesting an engine out in order to remove situation which will prove drastic to my finances.

Has anyone here got any idea of an easier way of removing the turbo for inspection purposes?

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ssshonky Grand Master

ssshonky

Posted
Posted (edited)

it should be possible to remove it without taking it out of the car.

the high pitched whistle.. have you had it re-cornfirmed by someone that it IS the turbo ?

some cheap intercoolers give you that " china whistle "

just saw the comment about no boost pressure.. could be split hose?

Edited by ssshonky
STAG250 Community Regular

STAG250

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remove the pipe inlet and have a look with a mirror if necessary, removval of the rear dump will do thesame.

problem is access to bolts at front on turbo is proving impossible in order to remove it

no high pitched whistle but an impotent sounding arrrr type sound and no pressure

problem developed over weekend I was up Mt Ruapehu and it was sounding rough on mountain road when I backed off the accelerator

got back to Rotorua and it packed up on Sunday

also the car refused to start at end of day up on the mountain and I had to roll all the way back down to Ohakune

17 km's downhill all the way

I'm wondering if trouble with turbos convinced Nissan to go NA back in '04

groonsnout Contributor

groonsnout

Posted
Posted
problem is access to bolts at front on turbo is proving impossible in order to remove it

no high pitched whistle but an impotent sounding arrrr type sound and no pressure

problem developed over weekend I was up Mt Ruapehu and it was sounding rough on mountain road when I backed off the accelerator

got back to Rotorua and it packed up on Sunday

also the car refused to start at end of day up on the mountain and I had to roll all the way back down to Ohakune

17 km's downhill all the way

I'm wondering if trouble with turbos convinced Nissan to go NA back in '04

Hmmn.. I'm still unconvinced it's a turbo failure, pretty unusual in a new car like this - Like suggested before, first thing would be to pull inlet & exhaust off it and have a good look at it, spin it if you can. Does it blow any smoke under boost or when cold? I'm sure you can remove it with the engine in car. Even in my 300zx TT which if anyone has ever owned one, you can't even SEE the turbos under the engine bay, are possible to remove with the engine in place. Fair enough it's easier sometimes to drag the engine to give yourself more room, but maybe source a service manual for the M35 and read the Nissan procedure.

Anyone know what sort of snail these V6 engines use?

stasis Mentor

stasis

Posted
Posted

Does your car blow any smole at all after it warms up? Black smoke you will need only a tune up. If white smoke then the turbo is buggered. Wgen you step on it does it give a black puff of smokes at the back of the car?

If your car is stock standard it is very unlikely for the turbo to be shagged. Also check the manifols whether there are any signs og oil seeping on the manifols itselfs.

If all else fails get it into a worskshop that is familiar with nissan engine.

STAG250 Community Regular

STAG250

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No smoke at all that I can see

The air filter was filthy and may have been OEM

I'm told by turbo experts here that this is a possible cause of turbo failure

That little Jap girl's voice in my car seems to pick up on an emptying fuel tank (and so does the screen) so why not cry out for more air?

So far I have paid $NZ 600 to have a $30 air filter replaced that I could do myself. Better than forking out 5 grand unnecessarily though.

It drove me back to Auckland alright yesterday and the gas consumption is improved (9.6 km's/l, 500 km's on less than 3/4 of a tank) but that may be down to my just having to lay off the thrills.

I will seek out some experts here this week and maybe Nissan Japan and keep you posted.

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