Why does my sr keep doing this?

[callmeweezy724]

ok i have a s13 blacktop w/ some after market goodies like megan turbo mani, megan turbo outlet, blitz downpipe, megan test pipe, to a n1 evo 2.5 one piece catback, fmic, greddy rs,greddy ras, nismo thermo, dual flex-a-lite fans, stage 2 or 3 clutch, fidanza flywheel, b&m short shifter, greddy profec b spec II ebc, boost and oil gauges. Im still running the stock t25, injectors, and maf. I think my turbo might be no good because when i let my car idle i dont get any smoking, I can drive the car and it wont smoke as long as i dont boost. As soon as i drive the car and let it spool i get smoke coming out the back. Some times if i really get on her the oil dip stick pops up and i get oil all over my valve cover and hood. I clean it and push the dip stick back down and it start right up. Would a blown turbo cause this to happen? I kno a blow turbo or turbo seals causes it to smoke like crazy..Im trying to figure out y my dip stick keeps popping up. I was thinking maybe one of the oil turbo lines were backed up or something. And yes i am an idiot, I will let i didnt put the turbo locking tabs back on when i changed my turbo to the new manifold, now my turbo mani gasket is blown..could that be a problem? I've already orders up a new turbo, and the locking tabs and ill be installing everything shortly. Hopefully this fix's my problem. Any of you guys have any input or ideas what could be happening?

P.S. sorry for the long post..

[IanS]

A blown turbo will cause smoking at idle.

The problems your talking about are most commonly caused by excessive blowby. It is likely that your piston rings are worn and combustion pressure is escaping into the crankcase. It is also possible that your PCV valve, and crankcase vent system are hooked up incorrectly or blocked.

How is your valve cover vent hooked up? Do you have an oil catch can?

[exhsturbine]

FBI took the words right from my mouth haha

[callmeweezy724]

A blown turbo will cause smoking at idle.

The problems your talking about are most commonly caused by excessive blowby. It is likely that your piston rings are worn and combustion pressure is escaping into the crankcase. It is also possible that your PCV valve, and crankcase vent system are hooked up incorrectly or blocked.

How is your valve cover vent hooked up? Do you have an oil catch can?

oh god dont tell me that!!! It's a fresh swap It wasnt always doing this.. When i first got it started it wasnt smoking out the exhaust. When i took it down the block and came back the turbo was smoking a little bit. Then i found out i was running on 3 cylinders becuse i had a bad fuel injector so I orderd 4 new ones in the rail and installed those. At first i had the oil catch can hooked up incorrectly i had the side that is suppose to attach to a vaccum source after the maf instead of b4 the maf(near the intake). Then i corrected that hoping it would stop. It jus recently start doin this..I was thinking since it was only doin this when the turbo spools the turbo was no good, because after it spools and i sit at idle it smokes out the back, but if i just start the car and let it idle then it doesnt smoke... i hope its not bad rings like you said..

[callmeweezy724]

there is a possibility i have the catch can hooked up incorrectly or it sucks bc it only has one nipple for the oil source..and the air source is some wack *** vaccum line. I think im jus going to get rid of it and change my turbo and see what happens...

[exhsturbine]

i think it was 240life, a member here on nico. who did some major damage by having it hooked up incorrectly. i think its on the thread "so it begins" so you might want to check it that. if its good, do a compression test. sorta sound like this is your problem though. however if you have been driving like that for a while, hope for the best.....

can you give a description of how your breathers, catch can and pcv, is set up?

[IanS]

can you give a description of how your breathers, catch can and pcv, is set up?

Draw us a picture.

[callmeweezy724]

right now i am at work when i get off ill take some pictures of my set up and post them up..I havent been driving the car daily..i take it down the block every now and then..i havent driven driven it bc i kno its still not 100% I dont hear any knocking or anything, The only bad thing that is wrong with the motor is this..This wasnt happening until I took my car to a shop to get the computer scanned. I drove my car home and noticed the smoke..I open my valve cover and theres oil all in my spark plug holes. Then i found out they didnt tighten the middle screws on the valvecover so the spark plug tube seals werent sealing bc the screws were loose. So i took the plugs out cleaned everything up tighten the cover..but its still smoking...
Modified by callmeweezy724 at 10:08 AM 8/29/2008

[Kalypso]

how did you figure out the ingintor chip/no power problem!?

congratulations on starting it

[callmeweezy724]

thanks man. I appreciate u remembering who i was..it actually wasnt my ignitor. xpicer came down to my house to help me out...i had the wiring all correct but there was a short some where. So he rewired the harness over for me..i drove down to his house and picked it up. Since i had fried my ecu i had to wait for my new one to come in. I did my timing over and plugged it up and she started right up... but now im stuck with this problem im hoping its not my rings..I dont have a car right now and that would jus suck..

P.S.S..heres some pics of my coupe i posted in the main 240sx section: zerothread?id=356935

[callmeweezy724]

I also have my stock oil pressure sender and gauge oil pressure sender attached but the stock one isnt hooked up to any thing. Should i jus eliminate it and jus use my gauge pressure sender?

[exhsturbine]

"nah i have mine running from the valve cover T to the can...then i had the side that suppose to go into the intake in the wrong spot at first. I had it goin into the intake piping after the maf(meaning closer to the turbo and not the air filter, im stupid i kno..) But now i have it plugged bc i have a sucky can catch that has like a less than a quarter inch hose for the intake supply and wont fit into the intake supply bc the hose is too small. So i have to get a new catch can. I think im jus going to eliminate it for now until i get the right one like broadfield said in the above post."

i found that you posted this in another thread. the part that scares me most is........ " I had it goin into the intake piping after the maf(meaning closer to the turbo and not the air filter, im stupid i kno..) But now i have it plugged bc i have a sucky can catch"

if i read it correctly i hope you meant that you have the intake pipe plugged. and not the catch can. if the can is plugged....... you need to take care of it like, now. put a filter on the end of it. let it vent to atmosphere. something. also, would you please give us a description of your ventilation system? thanks

[IanS]

if i read it correctly i hope you meant that you have the intake pipe plugged. and not the catch can. if the can is plugged....... you need to take care of it like, now. put a filter on the end of it. let it vent to atmosphere. something. also, would you please give us a description of your ventilation system? thanks

No doubt, open that ish up. The valve cover T should NOT be plugged.

[Sphinxmunkey]

mhm... Engines have PCV systems to ventilate the blowby off of the cylinders, every engine has blowby its just a matter of how much. If you have the ventilation plugged it will blow the dipstick out and blow oil past the seals in the turbo with enough pressure, and cause it to smoke (more rpm, more pressure, more blowby)

Sounds like your problem is a plugged pcv system, get a breather on there...

Or trade me for my 97 Jeep in the "other cars fs" haha

Good luck

[callmeweezy724]

mhm... Engines have PCV systems to ventilate the blowby off of the cylinders, every engine has blowby its just a matter of how much. If you have the ventilation plugged it will blow the dipstick out and blow oil past the seals in the turbo with enough pressure, and cause it to smoke (more rpm, more pressure, more blowby)

Sounds like your problem is a plugged pcv system, get a breather on there...

Or trade me for my 97 Jeep in the "other cars fs" haha

Good luck

yea thats exactly whats happening..the higher i rev the dip stick pops up, in that case ill jus eliminate the can until i get a better one to install...As for the trading thas outta the question..

[Kalypso]

Nico saves the day, I hope its just the can.

[callmeweezy724]

Nico saves the day, I hope its just the can.

you and me both..When i fix everything ill update and let you guys kno. thanks for all of the help so far!

[IanS]

Get yourself a new PCV valve while you are at it.

[callmeweezy724]

I installed one before i first installed the motor..all new gaskets. hoses, w/p, belts, nismo t-stat, wix oil filter, plus moore.