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blue smoke

Posted: Thu Jun 12, 2014 11:32 am
by peanut.901
hi everyone my pajero is puffing abit of blue smoke but not all the time only in low revs? what could this be? afew people have told me it could be the turbo seals or rings??

Re: blue smoke

Posted: Thu Jun 12, 2014 12:02 pm
by derk
it means its getting old and tired mate what's the oil consumption like

Re: blue smoke

Posted: Thu Jun 12, 2014 12:19 pm
by churchill
After I blocked my egr off on mine it smokes at idle. What engine is it?

Re: blue smoke

Posted: Thu Jun 12, 2014 12:57 pm
by peanut.901
still goes well uses abit of oil and its a 2.5 turbo non intercooled

Re: blue smoke

Posted: Thu Jun 12, 2014 3:17 pm
by churchill
Ok, mines a 3.2. Check turbo shaft play, dunno how to check rings on a diesel.

Re: blue smoke

Posted: Thu Jun 12, 2014 3:51 pm
by peanut.901
yeah there is a fair bit of play

Re: blue smoke

Posted: Thu Jun 12, 2014 5:57 pm
by rogerramjet
Is there any easy way to check the turbo shaft play? I assume the turbo would need to be removed.

Re: blue smoke

Posted: Thu Jun 12, 2014 6:09 pm
by peanut.901
i just removed air intake pipe and moved the shaft has a bit of play

Re: blue smoke

Posted: Thu Jun 12, 2014 6:56 pm
by churchill
Might be time for a rebuild on the turbo. Check that the compressor wheel hasn't been rubbing on the housing otherwise it's worth changing it out. It would be good to see if the rings are ok so you don't waste time rebuilding the turbo for a dud engine...

Re: blue smoke

Posted: Thu Jun 12, 2014 7:40 pm
by peanut.901
was thinking just replace turbo. motor still start mint everymorning still has good power so hopefully not rings

Re: blue smoke

Posted: Thu Jun 12, 2014 9:07 pm
by Weemsy
Any oil in the intake after the turbo?
Slight up/down movement in an older turbo is pretty normal.
Like someone said, is the compressor wheel marking the housing?
Any in/out movement in the turbo shaft?

Re: blue smoke

Posted: Thu Jun 12, 2014 9:29 pm
by peanut.901
yes there is abit of oil in intake but theres it abit of blow by and no marks

Re: blue smoke

Posted: Thu Jun 12, 2014 10:55 pm
by zed
One thing to try is removing the pcv hose from the air intake. It is connected at one end to usually the rocker cover, and on toymotas the other end is on the turbo. Mitsis I think go into the air intake pipework pre turbo. Usually on older diesels it is this vent pipe which can cause a bit of oil burn and blue smoke...especially on the 2.8/3.1 isuzu motors.
Anyway just take the air intake end off and poke it into a say 600ml plastic bottle. Poke some holes in the top for pressure release and see if you are collecting oil. Also make sure you block off the place you took it from (very important!). When you take the hose off you may notice some oil in there...if it's quite a bit that could be your answer.
I normally block off egr in all the vehicles I work on (pre carbon sensor ones) and put the pcv into a catch can. Increases longevity and stops the motor breathing its own farts lol :-D

My 2c ;-)

Re: blue smoke

Posted: Fri Jun 13, 2014 12:20 am
by fish
mine is the same, hardly any oil in the breather but quite a bit after the turbo, pretty sure the seal is gone, :? if like to rebuild, anyone got any experience? is it straight forward?

Re: blue smoke

Posted: Fri Jun 13, 2014 12:21 am
by fish
mine is the same, hardly any oil in the breather but quite a bit after the turbo, pretty sure the seal is gone, :? id like to rebuild, anyone got any experience? is it straight forward? mines 2.8tdi

Re: blue smoke

Posted: Fri Jun 13, 2014 7:41 am
by The WEHI
fish wrote:mine is the same, hardly any oil in the breather but quite a bit after the turbo, pretty sure the seal is gone, :? id like to rebuild, anyone got any experience? is it straight forward? mines 2.8tdi


10 seconds on google

http://www.stage-infinity.com/2007/09/2 ... o-rebuild/

Re: blue smoke

Posted: Fri Jun 13, 2014 10:21 am
by fish
looks ok, now to find a kit.....

Re: blue smoke

Posted: Fri Jun 20, 2014 3:59 pm
by fish
did my glow plugs today and while i was there i pulled the pipe off the turbo and found the thing full of oil, i mean heaps :shock: the compresor fins were wet with oil, im pretty sure its not blow by but ill test it with a bottle, thinking about getting a new turbo or cartridge rather than rebuilding,

Re: blue smoke

Posted: Fri Jun 20, 2014 8:52 pm
by zed
fish wrote:did my glow plugs today and while i was there i pulled the pipe off the turbo and found the thing full of oil, i mean heaps :shock: the compresor fins were wet with oil, im pretty sure its not blow by but ill test it with a bottle, thinking about getting a new turbo or cartridge rather than rebuilding,


If you opt for a new turbo be carefull with the chino ones...put one on my old diesel paj and only lasted 18months! Rebuilt genuine def a better option imho...

Re: blue smoke

Posted: Fri Jun 20, 2014 10:20 pm
by fish
but theyre soo cheap! mitzi quoted me 1200, ebay ones 300,
hmmmm

Re: blue smoke

Posted: Sat Jun 21, 2014 12:06 am
by zed
Have you looked into getting yours reconned? If in greater welly region there's an excellent mitsi turbo guy. ..dave from total turbo

Edit: sorry fish see you are in qt...

Re: blue smoke

Posted: Sat Jun 21, 2014 12:17 am
by fish
thanks anyway, i just found a rebuild kit on ebay for 40 dollars, im gonna do it! 8)

















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Re: blue smoke

Posted: Sat Jun 21, 2014 12:19 am
by zed
Do it do it lol ;-)

Well...far to early (late?) For sanity...haha

Re: blue smoke

Posted: Sat Jun 21, 2014 12:22 am
by fish
:lol: im gonna go with late.
thanks for all the advice

Re: blue smoke

Posted: Sun Jun 22, 2014 8:53 pm
by peanut.901
i turned the fuel pressure down unsure how far up it was but i have turned it down and no more blue smoke? anyone know why ?

Re: blue smoke

Posted: Sun Jun 22, 2014 8:56 pm
by peanut.901
i havent driven the pajero since turning the pressure down so unsure how gutless it will be

Re: blue smoke

Posted: Sun Jun 22, 2014 9:36 pm
by fish
how did you do that?

Re: blue smoke

Posted: Sun Jun 22, 2014 10:22 pm
by peanut.901
on the back of the pump

Re: blue smoke

Posted: Mon Jun 30, 2014 3:25 pm
by fish
Well the kit arived last night so today I started pulling it off and bugger me if it didn't piss rain. All month we have been crying out for some weather in Queenstown and the one day I get uder the hood the hevens open. Any way I got half way and decided to reasemble and wait for my day off to do it properly. Its a vigger job than I had anticipated