White Smoke help PLEASE - Boost Forum

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White Smoke help PLEASE
Monday, January 29, 2007 1:46 PM
The car only has 2500 [/b]miles on it. It smokes real bad on start up and a little if I sit for more then five minutes. I don't think it is the head because I just built up the whole engine and put on a turbo system. Any real help would be seriously grateful.

Re: White Smoke help PLEASE
Monday, January 29, 2007 2:47 PM
piston rings or valve guides damaged for sure

Displacement= 2.2L
Valve Train= OHV
Bore & Stroke= 3.50 x 3.46
Compression Ratio= 9 to 1
Net HP @ RPM= 125 @ 5200
Maximum Torque Ft Lbs @ RPM= 135 @ 4000
Fuel System= MFI
Normal Oil Pressure: psi @ 3000 RPM= 56
Re: White Smoke help PLEASE
Monday, January 29, 2007 3:02 PM
jbody305 wrote:piston rings or valve guides damaged for sure


No...

I wrote this to you in an email just last night, why are you posting this again? Here was my answer:

My Email wrote:
Most likely there is too much oil pressure, pushing oil past the seals in the turbo and burning up in the exhaust. Eventually this leads to total seal failure and oil leaks. You should go to http://www.atpturbo.com and look for oil pressure restrictor kits, or you can buy restrictors on ebay. This will limit the oil pressure into the turbo so it doesn’t push the oil past the seals. This is a really common problem, the turbo’s aren’t designed to handle more than about 15-25psi of oil pressure, but on cold startup, your oil pressure easily reaches 80psi or more.






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Buy stuff from CarCustoms Ebay! Won't be disappointed!

Re: White Smoke help PLEASE
Monday, January 29, 2007 3:19 PM
Shifted wrote:
jbody305 wrote:piston rings or valve guides damaged for sure


No...

I wrote this to you in an email just last night, why are you posting this again? Here was my answer:

My Email wrote:
Most likely there is too much oil pressure, pushing oil past the seals in the turbo and burning up in the exhaust. Eventually this leads to total seal failure and oil leaks. You should go to http://www.atpturbo.com and look for oil pressure restrictor kits, or you can buy restrictors on ebay. This will limit the oil pressure into the turbo so it doesn’t push the oil past the seals. This is a really common problem, the turbo’s aren’t designed to handle more than about 15-25psi of oil pressure, but on cold startup, your oil pressure easily reaches 80psi or more.


a turbo system needs at least 30 psi of oil pressure to be safley operated as for 80 psi on cold start ups are you out of your mind there is a litte thing called a oil pressure relief valve which brings it down to a safe pressure

Displacement= 2.2L
Valve Train= OHV
Bore & Stroke= 3.50 x 3.46
Compression Ratio= 9 to 1
Net HP @ RPM= 125 @ 5200
Maximum Torque Ft Lbs @ RPM= 135 @ 4000
Fuel System= MFI
Normal Oil Pressure: psi @ 3000 RPM= 56
Re: White Smoke help PLEASE
Monday, January 29, 2007 3:21 PM
I recommend thee Function 7 oil inlet restrictor off of ebay. Good luck!


~Boost. Its what's for dinner!~

Re: White Smoke help PLEASE
Monday, January 29, 2007 4:37 PM
jbody305 wrote:
Shifted wrote:
jbody305 wrote:piston rings or valve guides damaged for sure


No...

I wrote this to you in an email just last night, why are you posting this again? Here was my answer:

My Email wrote:
Most likely there is too much oil pressure, pushing oil past the seals in the turbo and burning up in the exhaust. Eventually this leads to total seal failure and oil leaks. You should go to http://www.atpturbo.com and look for oil pressure restrictor kits, or you can buy restrictors on ebay. This will limit the oil pressure into the turbo so it doesn’t push the oil past the seals. This is a really common problem, the turbo’s aren’t designed to handle more than about 15-25psi of oil pressure, but on cold startup, your oil pressure easily reaches 80psi or more.


a turbo system needs at least 30 psi of oil pressure to be safley operated as for 80 psi on cold start ups are you out of your mind there is a litte thing called a oil pressure relief valve which brings it down to a safe pressure


Seem like you need to shut up and learn about our cars cause all I've seen you say is BS and dumb answer.

80psi EASY. Ho can reach 90+ when cold. White smoke can happen when it's cold outside. Safe pressure? Are you scared of blowing something with too much pressure? Show me one thing that could blow from too much pressure on a 2.3/2.4. Not a general thing, I want a precise element. Also, pressure relief valve???? You never worked on a 2.4 before.

When you go you can't see it because it mix with the air.


Gilles
2.3 Ho

Re: White Smoke help PLEASE
Monday, January 29, 2007 6:01 PM
the pressure relief valve spring is inside the oil pump smart ass and for one precise element that could blow because of high pressure is your oil gallery plugs in the side of the block ive got a 96 cavy 2.2 the relief spring was so worn out and a slight rod to bearing clearance issue it poped the plug right out the block beat that smart guy

Displacement= 2.2L
Valve Train= OHV
Bore & Stroke= 3.50 x 3.46
Compression Ratio= 9 to 1
Net HP @ RPM= 125 @ 5200
Maximum Torque Ft Lbs @ RPM= 135 @ 4000
Fuel System= MFI
Normal Oil Pressure: psi @ 3000 RPM= 56
Re: White Smoke help PLEASE
Monday, January 29, 2007 6:08 PM
man learn what you talkin about i have an oil pressure gauge hooked up to my car 04 eco and in the morning i push about 70+ psi. and i have blown 2 turbonetics t3/t4 turbos because of too much oil pressure on my old car. and turbonetics themselves said there turbo seals arent made to handle much over 20 psi oil pressure. so learn WTF you talkin about before you post.
Re: White Smoke help PLEASE
Monday, January 29, 2007 6:09 PM
Dang i feel the love in here!!!!lol
Re: White Smoke help PLEASE
Monday, January 29, 2007 6:27 PM

Re: White Smoke help PLEASE
Monday, January 29, 2007 10:08 PM
About 75 psi here idling at 1100 RPM while warming up.


-

"Youth in Asia"...I don't see anything wrong with that.

Re: White Smoke help PLEASE
Tuesday, January 30, 2007 8:17 AM
Brian Whalen wrote:About 75 psi here idling at 1100 RPM while warming up.


x2



LE61T PTE6262 Powered

Re: White Smoke help PLEASE
Tuesday, January 30, 2007 10:31 AM
Where exactly does the oil inlet restrictor go. Pictures or a great description would be really nice. Thanks
Re: White Smoke help PLEASE
Tuesday, January 30, 2007 12:00 PM
It goes where your feed line attaches to the turbo, the feed line is typically a small braided line that goes into the top of the turbo.





4cyltuner.com - Information Source For 4 Cylinder Tuners
Buy stuff from CarCustoms Ebay! Won't be disappointed!

Re: White Smoke help PLEASE
Tuesday, January 30, 2007 1:04 PM
Be sure you check the specs for your turbo before using a restrictor. If you go to small you will starve the turbo for oil and destroy the bearings or worse the whole turbo. I've got a small collection of t3 turbos in my shop from just this.

http://www.turbobygarrett.com/turbobygarrett/tech_center/faqs.html wrote:# Does my turbo require an oil restrictor?
Oil requirements depend on the turbo's bearing system type. Garrett has two types of bearing systems; traditional journal bearing; and ball bearing.

The journal bearing system in a turbo functions very similarly to the rod or crank bearings in an engine. These bearings require enough oil pressure to keep the components separated by a hydrodynamic film. If the oil pressure is too low, the metal components will come in contact causing premature wear and ultimately failure. If the oil pressure is too high, leakage may occur from the turbocharger seals. With that as background, an oil restrictor is generally not needed for a journal-bearing turbocharger except for those applications with oil-pressure-induced seal leakage. Remember to address all other potential causes of leakage first (e.g., inadequate/improper oil drain out of the turbocharger, excessive crankcase pressure, turbocharger past its useful service life, etc.) and use a restrictor as a last resort. Garrett distributors can tell you the recommended range of acceptable oil pressures for your particular turbo. Restrictor size will always depend on how much oil pressure your engine is generating-there is no single restrictor size suited for all engines.

Ball-bearing turbochargers can benefit from the addition of an oil restrictor, as most engines deliver more pressure than a ball bearing turbo requires. The benefit is seen in improved boost response due to less windage of oil in the bearing. In addition, lower oil flow further reduces the risk of oil leakage compared to journal-bearing turbochargers. Oil pressure entering a ball-bearing turbocharger needs to be between 40 psi and 45 psi at the maximum engine operating speed. For many common passenger vehicle engines, this generally translates into a restrictor with a minimum of 0.040" diameter orifice upstream of the oil inlet on the turbocharger center section. Again, it is imperative that the restrictor be sized according to the oil pressure characteristics of the engine to which the turbo is attached. Always verify that the appropriate oil pressure is reaching the turbo.

The use of an oil restrictor can (but not always) help ensure that you have the proper oil flow/pressure entering the turbocharger, as well as extract the maximum performance.

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