Turbine wobble.

[the baPhoon]

I finally got angry enough at the noise ive been tracking in the engine compartment enough to start tearing parts out. Upon inspection of the turbo turbine its got about 1/8th of an inch of play in any direction. I also found a nice wet oil spot in the intake tube that appears to have been thrown out of the turbo in the turbine shape. I havent yet gotten a mirror out to look at the teeth on the turbine but im startin to fear the worst. damn you turbo, Damn you.

If the turbine is chewed up ill slap on some pics, If anyone has any suggestion as to why the hell its blowin oil, leme know.

 

[jwaller]

Re: Turbine wobble.

it may be normal. you will get play and should have some play in all lateral directions but you do not want thrust play. if you have that then you have a problem. your oil is most likely coming from the PCV system sucking it into the intake ducting. Delete the PCV's to fix this issue. there are many reasons why this is not good for performance. lots of posts here about it.

 

[Black Knight]

Re: Turbine wobble.

Hey John I put in both breathers and now when I run the truck hard it leaks a little oil out of them, any thoughts, suggestions, comments???

 

[the baPhoon]

Re: Turbine wobble.

ALlright heres the problem that lead me to the whole turbo dying conclusion. Correct me if my thoughts are wrong. If i get on it slightly and go from vac to boost as soon as i get into boost 99% of the time ill hear a little rattling sound from the front of the truck. I can let the boost back down and get back into boost again and ill get the same noise. Also it doesnt build boost the way it should, itll hang around 8-10 ish rather then all the way to 14. The noise is pretty discusting, almost like rattling a tin can with a penny in it.

 

[jwaller]

Re: Turbine wobble.

Hey John I put in both breathers and now when I run the truck hard it leaks a little oil out of them, any thoughts, suggestions, comments???

It simply means you have more than standard blowby. normally you wont get that much seepage. A solution for you would be to put a catch can on the valve cover or get used to cleaning it up with a rag. if you use a PCV system it's just going to suck that stuff into the motor and lower your octane rating and cause detonation.

 

[jwaller]

Re: Turbine wobble.

ALlright heres the problem that lead me to the whole turbo dying conclusion. Correct me if my thoughts are wrong. If i get on it slightly and go from vac to boost as soon as i get into boost 99% of the time ill hear a little rattling sound from the front of the truck. I can let the boost back down and get back into boost again and ill get the same noise. Also it doesnt build boost the way it should, itll hang around 8-10 ish rather then all the way to 14. The noise is pretty discusting, almost like rattling a tin can with a penny in it.

if your getting that kinda noise you should be able to see the rubbing on the inside of the compressor housing. take a look and see what you see. if it's making that noise then you have nothing in that turbo that could be reused in a rebuild or than the exhaust housing.

 

[gkrcr882]

Re: Turbine wobble.

Check the turbine blades as well, if you are getting severe contact it may lead to a broken blade being blown into the intake or jamming the turbo.

 

[the baPhoon]

Re: Turbine wobble.

the blades dont appear to be broken down. Im gona have to take a better look at the housing itself though. back into the oven of a garage for me! yay go phoenix sun go!

now the only reason i have ruled other engine noises out is as i stated above. It only makes the sound when the turbo is spooled or spooling. never at idle. never when the turbo isnt under load.

 

[Black Knight]

Re: Turbine wobble.

It simply means you have more than standard blowby. normally you wont get that much seepage. A solution for you would be to put a catch can on the valve cover or get used to cleaning it up with a rag. if you use a PCV system it's just going to suck that stuff into the motor and lower your octane rating and cause detonation.

Thanx John!!! :tup:

 

[QUICK STORM]

Re: Turbine wobble.

are you sure your not pinging? do you got DM?

on a side note, two breathers are ok on the valve covers?

 

[jwaller]

Re: Turbine wobble.

two breathers are ok on the valve covers?

yes, I run most all the trucks thru the shop this way.

 

[QUICK STORM]

Re: Turbine wobble.

yes, I run most all the trucks thru the shop this way.

thanks john, you have been really helpful:tup:

 

[the baPhoon]

Re: Turbine wobble.

nah i dont have datamaster yet which is why im asking all these damn questions and worrying about sound rather then raw data lol

 

[QUICK STORM]

Re: Turbine wobble.

sounds to me like your pinging, you might want to check for vacuum leaks, or any air leaks, TB shaft leak?

 

[the baPhoon]

Re: Turbine wobble.

Well im fairly sure its not ping. The rattle sound only happens when the turbo initially spoools up or maintains low boost (around 5) and when it does finally spool its just normal turbo whine. I find if im under a low accelleration the sound is more likely to happen. If i mash it sometimes the sound will pronounce itself and sometimes it wont. The truck still runs like a raped ape, but im sure that sound isnt a good thing lol.