No Boost! Blown turbo??

[tyger1]

So i was driving back home after work. I wasn't going fast, maybe around 60-70mph when i decided to pass another car. so i downshifted from 5th to 4th nothing serious right? I wasn't on it and I am only boosting around 16psi. well after i passed i heard my BOV go off then after that i was no longer boosting. i cant get past 0 psi. when i got home i checked my intercooler piping and couplers but found nothing loose or disconnected. i checked my BOV and external waste gate but all checked out. all lines were connected. I pulled off my intake pipe on the inlet side of my Holset HX40 and there was oil. so i pulled off my intercooler pipe on the outlet side and there was a significant amount of oil. I dont have the tools to do a boost leak test till tomorrow but untill then i want to see if there is anything else i should check. by the way there was a little shaft play nothing serious and the turbine side spins freely. thanks in advance for your input.

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[ekanddsm]

disconnect the turbo output and start uo the car and see if when you rev it up any oil comes flying out with force

 

[GORBS88]

This is what happend to my hx-40, the more reading i do the more i learn that they do have shaft problems, but they all start on the turbine side. Is your exhaust easy to pull back and check the wheel?

mike

 

[tyger1]

damn! wow. I am going to do a boost test today before i pull off the o2 housing. i am pretty sure there is that much oil in the turbine side because my intercooler pipe has a little puddle sitting inside. i hope it only needs a rebuild. but will a blown turbo cause a no boost problem? should it build a least a little boost?

 

[black92_tsi_awd]

If you have that much oil the seals are blown out. Is it blowing out a smoke screen? If the compressor side seal is completely blown out then it could cause the no boost problem. The air will take the path of least resistence...through the blown seal.

I blew out the compressor seal on mine and a rebuild kit fixed it right up.

 

[tyger1]

well i did a boost test and found a couple of leaks but nothing major. i am building boost now. don't know why all of a sudden. but i am smoking now. so i figure the turbo is shot. i got oil coming out of the turbine and compressor side. I am going to get it rebuilt so my baby is down for awhile.

 

[layzie12g]

If the seals are gone your car will smoke clouds when ever you pull up to a stop.

 

[tyger1]

If the seals are gone your car will smoke clouds when ever you pull up to a stop.

yup seals are gone. i already shipped out the turbo to get rebuilt and should get it back next week. i also bought a pte 60-1 as a spare.

 

[97dsmtsi]

how old is that turbo?

 

[JusMX141]

how old is that turbo?

My guess would be just over two years.

 

[97dsmtsi]

My guess would be just over two years.

my bad did not see that . why is this site still posting old post up? they should delete them.

 

[2qik4u]

they dont delete them. it should be closed though.

 

[JusMX141]

The threads are not deleted because they are a resource for searching purposes.

Good tech threads are left open because you have the ability to add new information to any thread as it becomes available; say you were researching information about how much airflow a certain 20G turbo will generate and you come across a 5-year-old thread that has the information you're looking for, but you want to add a little more from your personal experience....you're free to do so.

Generally the only threads that will become closed are those which contain rants or arguments, pointless noob threads, or threads about products that are no longer available.


Useless reasons to respond to an old thread would be to ask how old the turbo was when none of the members who posted in the thread are currently active, or possibly to ask why the O.P.'s blow off valve is bigger than his wastegate.

 

[2qik4u]

thanks jus for the clarification!!