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 ca18det help? lol

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traphikcod4
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PostSubject: ca18det help? lol   Tue Jul 19, 2011 6:40 pm

ok were to start...
so i fixed my starting problem on my ca18det, yah me...

well after driving for a day or so i start to notice little bit of smoke out the exhaust...
now the smoke is white...
well the car runs better with the o2 sensor unplugged (havent replaced it )
ok so heres the problem...
white smoke comes out on idle and taking mainly... very very very rarely while driving
after i got it i did a royal purple oil change with k&n filter (15w40) was told thats the best for ca's (from what i was reading)
well i was reading more and ppl said it could have been the oil bc it was smoking wayyyy more after the oil change...
so i did mobil1 5w50 i believe i got (dont quote me on that)
well now the smoke is even worse...
also on the back bumper there is i wanna say oil all over, and inside the exhaust is oil...

now here is what i have done/checked
popped off all my piping and shit from throttle to intercool to turbo, no oil
checked filter to maf and no oil in there either
i am not getting any blow by? if that matters really
its boosting fine
at first i thought it was rings and/or bearings
i just did compression bc i know everyone would tell me to check that
here is my readings
(did this while engine was hot, and throttle was open for each one, and i did a wet and dry test as well)

cyl 1 2 3 4
dry 130 125 127 135
wet 135 130 130 145

i have not done a leak down test yet bc i dont have the stuff to do it...
there are so far only 4 things i can think of...
oil was bad type of oil so try other shit....
the lifters on my exhaust side are bad or stuck open....
or i just need a tune really really bad
last could be head gasket but oil was not milky nor bubbley but idk

now some info on the motor,
ca18det
gt28 turbo at 14lbs
fuel pressure regulator
walbro 255
full 3 inch exhaust no cat
was supposablly rebuilt roughtly 2xxx miles ago
head is new and clean,
tomei cams (dont know what size)
arp head studs
and idk im forget other stuff

so everyone who has any imput it will be great...
idk what else much i can do...

thanks

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93sapphirecoupe
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 7:30 pm

nevermind
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traphikcod4
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 8:01 pm

????
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X1nom3D
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 9:40 pm

Correct me if I'm wrong, but I thought white smoke would be coolant burning, which would be the head gasket. If it were the piston rings, it would burn bluish. Any other color would be bad air/fuel mixture?

What does the exhaust smell like?
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93sapphirecoupe
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 9:44 pm

i typed in to check your pipes for oil. i missed that the first time i skimmed through reading it. so i edited it and said nevermind.

anyways it could still be a turbo issue blowing out the exhaust only. check your breather system too
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Flicktitty
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 9:45 pm

i agree white = coolant. whats the coolant/oil look like? whats the dipstick smell like/feel like?

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X1nom3D
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 9:52 pm

Try removing the turbo and check for oil leaks. Blown turbo sometimes boost fine but leak oil that will cause smoke... but I still don't know why its white.
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traphikcod4
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 10:02 pm

Well the reason i checked all for my rings is because the oil in the exhaust andi thought it was blue smoke at first

But now it just seems white...
the oil seemed fine when i did the 2nd oil change

I also agree that white equals coolant/water

The exhaust doesn't smell sweet or anything like coolant

Idk... im kinda in a jumble
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traphikcod4
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 10:02 pm

Me eiter. The turbo was "brand new" less than 2 months says the kid
he showed me the old one
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Flicktitty
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 10:15 pm

what oil feed/drain is on the turbo too big or too small of oil lines will kill them.

usually turbos when they are blown will smoke on decell tho.

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traphikcod4
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 10:18 pm

Yea idk, it blows smokes on idle and acceleration ...
Think i should just replace th head gasket just to be safe? Then buy aftermarket oil andcoolant lines for th turbo?
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93sapphirecoupe
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 10:23 pm

i know white generally = coolant however when my turbo blew it was white. if there is enough oil and it isnt burning (blue smoke is burning oil) then it will be white. dont just replace a head gasket. its prob something else. the drain could be plugged or it sounds like to me maybe a PCV problem
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 11:33 pm

Well what explains the oil in my exhaust and spitting all over my bumper?
And could it be the smoke is so bad in my exhaust it gets hot and burns?

What oil would you guys recommend?
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93sapphirecoupe
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PostSubject: Re: ca18det help? lol   Tue Jul 19, 2011 11:34 pm

a blown turbo or blocked pcv like ive been saying. the oil isnt your problem
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PostSubject: Re: ca18det help? lol   Wed Jul 20, 2011 12:14 am

Yea, I think your turbo is definitely spitting out oil. Anything wet on the exhaust will eventually burn and turn into smoke once it runs hot enough. Doesn't necessarily mean its coming from the engine.
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traphikcod4
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PostSubject: Re: ca18det help? lol   Wed Jul 20, 2011 9:13 am

Well i guess ill either search for a new/rebuilt/used turbo...
If not just rebuild mine
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93sapphirecoupe
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PostSubject: Re: ca18det help? lol   Wed Jul 20, 2011 11:21 am

93sapphirecoupe wrote:
check your breather system too

93sapphirecoupe wrote:
check your breather system too

93sapphirecoupe wrote:
check your breather system too

93sapphirecoupe wrote:
check your breather system too

93sapphirecoupe wrote:
check your breather system too

93sapphirecoupe wrote:
check your breather system too

OK?
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traphikcod4
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PostSubject: Re: ca18det help? lol   Wed Jul 20, 2011 1:21 pm

I will i will i will i will i will i will i will
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93sapphirecoupe
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PostSubject: Re: ca18det help? lol   Wed Jul 20, 2011 1:24 pm

lol. sorry it just seemed that you had been ignoring that. if you have to much crank case pressure the oil wont drain out of the turbo drain efficiently which could cause that problem. i had a similar issue one time.
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s13.240sx
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PostSubject: Re: ca18det help? lol   Wed Jul 20, 2011 2:43 pm

I believe there should also be a oil restrictor inline on that turbo. too much pressure will cause it to spit oil out oil. If it doesn't have one it is a really cheap part to buy.
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PostSubject: Re: ca18det help? lol   Wed Jul 20, 2011 5:44 pm

Yea i had to put a restrictor on my buddies...
so he has like a hard line running as the oil line...
And like one of those chrome braided lines for the coolant...
think i should purchase some real ones?

And what are you all asking for when you say breather system...
i am gonna replace my pcv tomorrow since that's a cheap and easy thing to do...
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93sapphirecoupe
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PostSubject: Re: ca18det help? lol   Wed Jul 20, 2011 9:53 pm

run it to a catch can. i was just saying make sure its not blocked or clogged anywhere.
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PostSubject: Re: ca18det help? lol   Wed Jul 20, 2011 11:09 pm

Ok,
i don't have a bung (lol)anywhere near my air filter for a place for the other side of the catch can
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93sapphirecoupe
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PostSubject: Re: ca18det help? lol   Thu Jul 21, 2011 4:03 am

cant you make one? or eliminate your maf like me and you wont have to worry about that stupid ass shit lol. you could run it open and see if the smoke goes away maybe? just for now
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PostSubject: Re: ca18det help? lol   Thu Jul 21, 2011 9:45 am

Run it open? As in unplug? Or take the whole airfilter side off hha?
And idk if i can make one? Im not getting any blow by anyways
so if in not running a restrictor could that mean to much oil to the turbo and its coming from the exhaust side?
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