alot of white smoke from PCV valve, turbo TD42 in GQ

[love ke70]

Hey guys, i know its not toyota, but i know where the boffins reside, and the nissan is only the work truck/tow hack for the race corolla, over the past week or so ive noticed some smoke coming from under my ute when i pull up, finally got the time to pop the bonnet and have a look today, to find it pouring out of the vent on the other side of my oil catch can. To eliminate variables i pulled the hose off from the PCV and its doing the exact same thing.

Its a continual stream, no pulsations, of white smoke, which doesnt really get damp when you hold your hand in front of it, ive got a little video here of what it is doing, exhaust smoke is black when you blip the throttle and clear when you hold it, no colouring at all, just like normal.
power feels good, running 15 PSI max boost, still making and holding this fine, EGT's may have been a little higher than usual, but nothing signifigant.

I'm going to drop the oil later and see if theres anything in the oil, but i thought i would ask you guys as ive never experienced anything like this, where do i go from here?



cheers, andy

[convertableTA23]

just a quick question, did you build that manifold, or was it on it when you bought the pootrol, just look familiar to me that's all....

if you bought it, did you buy it off a guy in ipswich????

As for the white smoke, what is it using, oil or water or neither???? That will tell you where the problem is, white out the exhaust is usually coolant, but i have never seen true white out the breather, it usually has a blueish colour and is usually compression getting into the crank case from a number of causes....

[love ke70]

manifold is a laminova intercooler from scott mcguiness down in SA, i put it on my self
the pic ^ is a vid, which shows its pretty well white.
looks like a turbo seal is shagged, unbolted turbo drain and problem went away, just have to confirm tomorrow cause i forgot to block where the drain goes into the sump.
hoping its just the turbo anyway


cheers, andy

[convertableTA23]

No worries, a bloke i know built his own manifold that looks similar, apparently he didn't like the factory one. That is odd that taking the turbo drain off fixed the problem, usually if the turbo was shagged you would get oily exhaust/inlet etc. Could just be the smoke exiting from the drain point in the side of the sumpnow though. I did see how white it was too, bit different than what is normally seen....

[love ke70]

get the feeling the exhaust gas is going into the turbo drain, or something similar
kicking myself i didnt think to block the drain, its a bugger to get off.
the factory manifold is crap, and the new integrated one there with the cooler made a massive difference
have had mildly oily intake for a while, basically since some clever bloke at a party duck taped up the stainless snorkel and the turbo didnt know wtf to do when i started it with the massive vacuum from the engine.

[convertableTA23]

Funny f**kers..... some people have no idea what damage they can potentially cause. A bloke i went to uni with had his 3 month old car covered in shaving cream at a party, result was a complete respray and a unhappy insurance company.

Sounds like it might be the turbo then, oil vapour can be a white colour some times, and if exhaust gas is being forced into the sump, that could be what it is. At work we send turbos into mike vine, but have also heard good things about motsons if you are in the brissy area.

[love ke70]

yeah, motsons tuned it originally, then i played with it, did the pump, the cooler and resized the rear housing of the turbo, if it is the turbo probably gonna go a new one over spending the dollars on rebuilding an old safari dinosaur, hopefully it will still sound as good. Always happy when you go to 4wd camp sites and the owner says its best sounding turbo diesel he has ever heard and the missus mistakes prime movers for me coming home hahaha

[convertableTA23]

Nice, i guess as long as the flange is a t3/t4 type on your manifold a new turbo would be quite cheap. Sounds like you have done a bit to the old oiler, i'm trying to resist doing anything major to the 1hz, hoping to buy a write of 1hdfte 100 and do a swap, but it is a little slow draging it's big arse around on 33s with a rooftop and lots of other shit.

Just showed my wife your sig too, she's a teacher, but unfortunatly she recons she couldn't use that in a primary school environment....

On your turbo setup, i just finished doing one at work on a 120k 92 ute and he was thinking about a water/air intercooler, how much was yours and how big of a pain was it to fit if you don't mind me asking.

[love ke70]

fitting is easy really, just unbolt old manifold, bolt new one on, run hoses, mount pump, i added a swirl tank to one line to make getting the air out easy and filling the system
some pics here of mounting heat exchanger and the cooler,
http://s29.photobucket.com/albums/c2...and2/laminova/
with that heat exchanger i had to grind all the back of the plastic grill away til its just a skeleton of itself and then bend it around the fans, but its on, so thats all i care about, a slightly smaller exchanger would have sat inside the bottom rail, but makes life hard to mount a pump
i think they are doing the 4 core intercooler integrated into the TD42 manifold for 1800 these days
Advanced (HB) Intercoolers - Generic Intercoolers
they also supplied me the massive heat exchanger with 2 spal fans for 850
then obviously had to do airbox and pipe work etc, and obviously go the cheap option and use barb fittings and heater hose, not all braided etc
its had a shit load of work done to it, but it had to, weighs in a 3.1 with my work gear on the back, poor thing.
1hdfte really is the dream isnt it, definitely worth the wait and doing the swap over modifying an inferior product really...
cheers about the sig, my old mans a secondary teacher, he'd just tell me most of them wouldnt understand anyway haha

cheers, andy

[convertableTA23]

Cheers, he was looking into the pwr cooler, but this is another option.

My father-in-law has a 100 that he used to tow his big kedron van, you know your 80 is slow when on a recent trip away he rounded me up going up the toowoomba range, van and all, and i didn't even have my winch in and i was on my little (33) touring tyres, so yeah, 1hdfte is the dream.

Finally read your name too, and i'm an Andrew too, how bout that

[love ke70]

laminova will shit all over PWR

back on topic, i had more of a look tonight, pulled drain off again, and this time blocked where it would usually run into the sump, and the blow by is back, so, its not the turbo

which means?
im thinking next step is compression test, but open to ideas...


cheers, andy

[convertableTA23]

Hmmmm..........

Got a diesel compression tester? I can pinch the work set if you are in the ipswichish area.......

Will have a quick chat to my old man/boss tomorrow, he has forgoten more about diesels than i ever hope to know, he cut his teeth on kenworth trucks in the 70's.

Yeah, it looks a bit better than the pwr setup, but the tight ass doesn't want to spend that much at the moment, will prob just run as is for now

[love ke70]

nah, i dont, was gonna pay a guy to do it, the same guy who did it last time.

its a shit of a job with that manifold but can be done with the mani on, you wanna do it for me?
im in yatala, so only halfa to ipwichish...

cheers, andy

[convertableTA23]

Yeah, i'm the wrong side of ipswichish though. I didn't even think of the manifold, it looks like it could be a bit of a shit. Considering it would be an after work thing for me it would be a bit of a bitch.

Couldn't charge you that much for a comp test either, so probs not worth the time/effort/fuel for you. Let me know if you want me to though, send me a pm and i'll send you my address.

[love ke70]

ill find out tomorrow how much it will cost

cheers for the help so far