Hello im new to this site and a new z owner..ive only had it for about a week it is 1990 twin turbo 4 seater. on start up its fine after a min maybe a bit les it will start to blow white smoke but only out the passenger side exhaust kit does not shake or idle rough or anything like that the car runs perfect apart from the smoke. from what i have read it sounds to me like its running lean but i wouldnt have a clue im not very mechanical i have taken it to the zhop in glen iris melbourne he had it in there diagnostic machine looking thing and i could see the passenger side was running lean the driver side was perfect changing from lean to rich about x2 a second. he did something under the bonnet and said it should fix itself up after 100km's but its been over 100 the smoke is not as bad as it was but still visable and not constant. from what i have been told by the last owner the zshop will tell you one thing when its another in order to get you car into their workshop for longer periods of time. any ideas would be greatly appreciated im hopeing its something realitivly simple such as an o2 sensor or something like that. thanks again
i spoke to the last owner he said he had the oil restrictors remove so the turbos get more oil and said a little bit of smoke was normal as i have no idea i dont know if this is true or not. this is a list he gave me of things that had been done when i bought the car timimng belt at 80,000k, front mount intercooler, pod filters, high flowed turbo to gt2860rs disco spec, 2 new actuators, 1 new ciu, balanced tail shaft, coil pack 5 n 6 replaced, 4 new shocks, new upper control arms, new lower control arm bushes, all idr bushes, hitech ecu, 2.5 inch front pipes, 2 honey corn cats wheel alignment, steering alignment, xetreme sports clutch, extreme lightened flywheel, 1 new o2 sensor. i will scan and post the reciepts from the zshpo to show what they have also done have no idea if any of this will help but i figure the more information there is available the easier it may be to help diagnose.
ok so will i have to go buy more restrictors for them i have got almost no clue when it comes to mechanicals i know a little but not enough
i looked under the car there is a H pipe in there if thats what you meant by balance pipe. as for the restrictors how do you put them in where do i get them from can it be done a t home i would i need a shop to do it
Since when is white smoke a sign of oil burning, and even if an 02 was dead the smoke from over fuelling would not be white. White smoke usually means coolant, not a good sign at all.
ok so assumeing it is coolant...what exactly do you mean by that i know what coolant is..but do you mean its getting into somewhere it shouldnt or something else ? im new to all of this
should i try the pcv valves first ive looked around and found that these are a cause aswell and they would be the cheap option to start on
Mate the H pipe would ba what i called a balnce pipe so all clear there.If it was coolant related you would be topping up the coolant level ?.Mine was blowing white smoke out of one pipe when i bought it and was told it was turbo's but ended up being no h pipe so i had one fitted and it solved my problem but as you said you have one so thats not it.Are all your fuel injector / coil pack connectors clean and tensioned correctly ?.I would exspect if it's a turbo seal it would be worse under excalleration ? ( but i'm no expert ).
well i havnt had to top up coolant...pretty sure its not the turbos they are only 7 months old and were checked a month ago they were fine then no shaft play or anything like that so i have been told. as for injector/coil packs i have no idea but i will have a look at them tomorrow...are they supose to be at a certain tension ? i dont think it is the turbo seal either as its really only blowing the smoke down low under heavy acceleration its basically gone or i just cant see it out the back window. im going to replace the pcv valves ive read that if they arnt functioning you will smoke aswell not sure if there is any truth to it or not but i will find out.
i was around my brother place earlier he says he sure its oil he can smell to me it smells like oil aswell but neither of us are experts
Oil is blue smoke. When I had no o2's you could see fuel vapour all over the ground out the exhausts.
Sometimes people find it hard to differentiate between white and blue smoke. Your turbos may have been checked and are ok, but with no oil restrictors they will push oil past the seals. Get the restrictors fitted or the turbo's will be cactus. You may be able to fit them in the car, depending on how the oil feed lines a routed.
i will be getting them fitted is there a certain size i need or anything like that...where abouts can i get them from...any idea how long or what the cost will be. are they easy enough to fit yourself. sorry alot of questions but ill never know if i dont ask
This is the oil line from the block to the turbo on the passenger side, as you can see it wont be easy to remove the oil line or replace it on this side, or the drivers side, these are not stock turbos shown, and don't have the heat shields in place like stock turbos should have, which makes the job just that little bit more of a piss of. Why the previous owner would go to the trouble of removing the restrictors in the first place, without obviously knowing wtf they were doing sounds a little fishy. [/IMG] [/IMG]
yeah i can see its not going to be easy but im willing to have a go at it...if i went to a workshop would they want to pull the motor out to do this or can they do it in the car. im not sure why he took them off either. thanks to everyone who has replied so far it is greatly appreciated
