can oil vapor blow a turbo ?

SON240sx Automotive
1

well as you know i had some issues before about a no boost situation, i found the problem to be a broken turbo shaft in the rear turbo. I have replaced the rear turbo and the car runs fine now untill… I went today and had a cat installed on the car , the guy at the shop told me to take it out on the highway to heat up the cat. so i take it out on the highway and go for a rip. after about ten mins on the highway i decided to se how fast it could go, so i let it go and at about 240ish i loose all boost , so i slow down and pull over , i checked the piping to se if anything fell off and it was ok , i tried to drive it and i had no boost again (same as before) so i tow the car back to the shop and pull the intakes off and start the car , the front turbo spinns ok but the rear wont spin.

So i take a look at the pieces i took off the rear turbo and notice theres alot of oil comming from the intake of the turbo. above normal i think.

So my question is , can too much oil vapor cause a turbo to break? if so wold an oil catch can help me ? i dont want to be replacing turbos every month or so

thanks

farmer

2

check the return line for clogs, and height incase it isn’t draining

and make sure your feed line is flowing, but also has restrictors in place

3

what do you mean by “rear” do you mean the turbine side? If so…something is very wrong…as the turbine compressor shaft is solid…i would check the nut holding on the compressor

4

ADAM - he runs a twin turbo setup - so he is refering to the rear turbo…not the rear of a turbo.

Too much oil can destoy a turbo as it can force the seals to fail (but that is the oil feed, not vapor). I think if that happened though you would have been dumping and burning a lot of oil. I didn’t see or spell any signs of burning oil.

5

at higher rpms… there is the possiblity that oil will come up the vavlve cover back into the intake from that blow-by hole…

happened to a friend of mine. in this case however he dind’t connect oit to the intake, and had the breather on it (300 dollar fine if police see it)

but yeah
I have a cheap form of a catch can that I can show you how to make/use)

6

i took the rear turbo off and took apart the turbo, the exhaust wheel is gone and the oil is mixed with coolant but the oil side has no coolant. I checked the lines for kinks and i even cranked over the car to make sure there is oil being pumped into the turbo, and there appears to be plenty. so im thinking that my issue is that im not getting enought cooling from the rad and the car is runnig too hot, thus burning up the turbo. im thinking thats the problem and that i might have got a bad turbo.

farmer

7

Do you have the oil line restrictors in still? You might be pushing to much oil presure to the turbo and blowing the seals.

8

where can you get these restrictors and how much??>

if the turbos were also stock on the motor why would you need that??

9

You wouldn’t. I would really doubt that is Farmers problem…since he is completely stock.

BTW, You can get restrictors at ATP Turbo.

10

ya I am not worrid about it since my turbo came on an Sr, but I wanted to know for farms. Someone help out this good guy and get him a cheap T28

11

The restrictors are in the lines… thought maybe he changed his lines.

12

The exhaust wheel is gone…

How much boost were you running exactly…

13

anything more than 1 bar bob don’t those turbo’s “peace out”?

something in them or of them being made of ceramic?

14

ATP sells the restrictors:

http://www.atpturbo.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=ATP-OIL-022&Category_Code=OIL

15

Yeah man, 14psi is the max those will do, before the ceramic wheels take a shit.

I mean Justin doesn’t beat his but he hit’s a bar on occasion. It must be an oil line, or a lemon turbo, or maybe your boost controller is hooked up wrong and you aren’t getting proper readings (or the boost controller is hookedup wrong) on how much boost you’re pushing.

This might have been worth adressing when you killed the first two snails… I hope it get’s sorted soon.