my new 4agte blowing lots of white smoke

[Nic19]

hey guys my car with a freshly built 4agte seems to be blowing lots of white/blue smoke when its cold, once up to temp its fine. the engine has only done 1000kms and i wanna know if its normal or not? and what would be causing the problem.
cheers
nic

[Dfectd_Drftr]

Check your oil condition and water condition. White smoke is usually water burning, therefore a blown head gasket or the like. With the blue smoke, this is usually burning oil so if the engine is new I would firstly be checking my turbo and lines. Check all your fitting are round the right way aswell Ive seen that done before. Most new motors will make some unruly smoke but not too much to worry even the least experienced person.

[resol]

if the motor has been rebuilt (properly assuming) and already done the magic 1000kms then it shouldnt be blowing smoke. infact it shouldnt be blowing smoke after the 1st start up really.

seems like it might be burning oil while cold, until it heats up and reaches correct tolerance.... could be turbo, could be rings?

check the basics, check water levels, if they drop find out why (if theres a oil or its burning water etc.). check oil, make sure its good colour/consistancy, and see how much if any its burning each day.

how new is the turbo? car runs, makes boost fine?


-dan

[dAYTONA]

Has it been blowing smoke for the 1000km's? or just started?

Did you overheat it at any stage after the rebuild?

If the turbo oil seal would be stuffed, it would smoke after the engine heats up, and the oil becomes thinner, not before. Unless after you turn the car off, the thin hot oil goes though the seal, into your exhaust, and then burn next time you start it.

Who did the rebuild? Might be a good idea to ask them.

Were the valve stem seals replaced?

How long does it blow the smoke for?

[Dazzla86]

does it look like this???

http://s703.photobucket.com/albums/ww39/dazzla86/?action=view&current=sprinterinitialtune.flv

[AE86 Spoontah]

I'd check your turbo first. Pull the dump pipe off and check for oil as i had the same problem with mine and ended up being a blown turbo. It was exactly like Dazzla's blowing smoke

[Nic19]

thanks for the help guys. i brought the turbo set-up off beau. think its only a few months old. the valve stems were replaced and everything is fresh.

it blows smoke for the first probably 5 minutes. i dont think its the turbo because like you said it only does it when its cold.

the temp has never been above half or even near it.

its really pissing me off now cos i have spent all this money and its blowing smoke on me!!

during the first 500kms i took it fairly easy, loading the engine up hills and never reving it out. the last 500kms i have slowly been increasing the load but still never reving it out. never let it idle for long periods and no freeway driving.

also could this be caused by having it too rich? cos my fuel pressure it high and i think its running a lil rich??

cheers
nic

[Jdm070]

Just throwing it out there: possible the oil feed/return lines aren't the right sizes, causing the turbo to burn oil.

[Nic19]

unsure of the feed size but the return is 19mm that reducers near the bottom to fit over the stock oil cooler return fitting. just interested in why it would cause it to burn oil?

[AE86 Spoontah]

Your turbo feed only needs a dash 3 or 4 size hose. Your drain needs to be about dash 10 or maybe 12 with no restrictions or reducers. If it can't drain back quick enough or it's getting too much it'll just sit in there and burn away

[FAST EDDIE]

id say probly turbo if the smoke goes away when warm

[Nic19]

thank god you guys think its turbo. i dont wanna pull the engine apart again!!
so what should i do about it eddie?
also ae86 spoontah what if the drain is bigger? will it assist in drainage? i think the supply looks around dash 6

[FAST EDDIE]

what size is dash6? normal size is 5/8in get turbo rebuilt, it could be a whole heap of issues but because u say it goes away when it warms up generaly rules out most engine issues, unless u have a thermostat on the oil cooler?

[Nic19]

dont have an oil cooler at the moment. yeh it goes away when the temp guage hits the first mark on the dash guage.

[FAST EDDIE]

what turbo

[Nic19]

kkr280

[FAST EDDIE]

sorry dood but ived been there and thats most probably ur problem they are complete failure turbos

[reecegze]

Your turbo drain is either to small or you've got to much oil going into the core. I had this problem , but i fix this bying going thinner oil and restricting the oil feed. Whats your turbo drain line like ? Also kkr turbo are crap man. Speak to beau i think it still has warranty

[Nic19]

well i changed the shitty mineral run in oil tonight, seemed to still blow lots of smoke on first start up but when i was coming home tonight it blew a little bit and then that was it. hoping that it was just the oil being too thick or too crappy. yeh i will prob go to a t28bb once i have sorted out the suspension and driveline. just brought his set-up as it was a good manifold set-up and all ready to bolt on.

the oil drain line wont be the problem as its fairly big and only reducers at the bottom where it goes into the top of the sump.

fingers crossed its ok wen i start it up tomorrow.

[reecegze]

Sorry to rebirth this thread, but did you end up fixing this problem ? Also wanting to know what size inlet to the sump ur using.



well i changed the shitty mineral run in oil tonight, seemed to still blow lots of smoke on first start up but when i was coming home tonight it blew a little bit and then that was it. hoping that it was just the oil being too thick or too crappy. yeh i will prob go to a t28bb once i have sorted out the suspension and driveline. just brought his set-up as it was a good manifold set-up and all ready to bolt on.

the oil drain line wont be the problem as its fairly big and only reducers at the bottom where it goes into the top of the sump.

fingers crossed its ok wen i start it up tomorrow.

[Nic19]

Yeh fixed it. Changed the oil return into the sump to a 3/4 fitting as it had a banjo fitting that I think caused the problem. Although it is burning some smoke again but I'm pretty sure it's the turbo itself now.

[reecegze]

Yer thought it would be the size of the oil drain fittings , Iam changing to a 3/4 also as my 11mm Id drain is to small , causing smoke under heavy load stopping.

[reecegze]

I hate the 4agte for its custom setup , My car was pouring out smoke again last week , put a new gt28rs on it thinking it was the turbo. Run the car to idle temps and let it sit. Its starts to burn oil again WTF ? Not the turbo , oil return size , oil feed , oil level or oil thickness. Thinking its either piston rings or valve stem seals now as its happening on idle and driving.

Does your car still blow the smoke ?

[Nic19]

it blows a little bit every now and then but the guy from otomoto said i need to measure the amount of oil going through the turbo and check if its too much cos he said the kkr turbos r prone to over oiling them.
if i put a gt28rs or 2871r on it will i need an oil restrictor??

[reecegze]

yer u will to restrict it to .35mm ive got around 1mm on my disco potato now and i need it restricted more. Ive kinda sorted out my problem.. I cleaned out my catch can , breather and made a smaller banjo to turbo oil inlet. I am running a unknown size braided hose maybe 3/8 to my turbo that is ruffly 2mm inside diameter "Way to big" now with the smallest drill bit i had 1mm ive reduced the amount of smoke out the back. (This whole time thinking second hand t28's are crap for blowing rear seals.) Reason i went to a gt28rs to get a garanteed new turbo condition

I am thinking my valve stem seals are giving way as it happens only when sitting on idle for abit.. Comp tested cylinders for piston rings and all came back good. Also i found alot of shit around the t/b so i needa clean this out to see if it helps, my mission to elimate smoke.

[s14seriesII]

yes valve stem seals, if it starts smoking at idle.. or backed off on a long down hill..

shouldnt need to go any smaller than 1.2mm oil restrictor for any kind of turbo

[Nic19]

Well mine smokes when it's sitting there idling mainly wen it's idling high like1500rpm. But my head wAs completely rebuilt??? I was told by kkr that I'm probably getting too much oil through my turbo aswell.

[reecegze]

Yes it's most probly the seals but it's weird how a rebult motor is doing the same thing , and it's very common on the 4age
turbo setup, what oil pressure does a sr20 have when warmed up? Theres a possibilty the 4a pump creates to much pressure hence needing a smaller restrictor to reduce pressure in the core

[Nic19]

Yeh well I think most people run their turbo line from the oil pressure sender which is prob the place with the most oil pressure isn't it? Where did u get ur restricter from? Did any come with the turbo?

[reecegze]

I've got banjos still I made the banjo bolt by drilling a bolt out using 1mm drill bit I am fitting it 2day let u no how it goes

[Nic19]

Ok sweet as. I was told that Garrett supply restrictors with their turbos.

[reecegze]

Mine didnt come with one.. Got update for you.. No more smoke on idle or revving. I fitted the 1mm restrictor to the turbo and upgraded the lines for my pcv setup and its sweet now.. If you have a catch can i would suggest to port out the holes on the inlet/outlets. Mine were to small 1/4 inside diameter. The amount of pressure coming out of the rocker cover was to much for the sizes on the chinese oil catch can.

[Nic19]

ok sweet as man, good work. glad to hear its fixed. now to fix mine lol

[reecegze]

Do you run a catch can setup?

[Nic19]

Not at the moment. There is just a lil filter on the rocker cover. I'm goin to get one asap tho.