Have a gt2860rs turbo and recently started whining like straight cut gears.Boost and spools perfect just makes this weird a$$ noise.any thoughts?

 

turbo whine of death

either the shaft became unbalanced or the fins are bent

that chunk of piston prolly took something out

 

ya thats what we have been reading.we looked at the turbo today and it looks perfect.there was no sign of anything passing through it or impacted it but i dunno.

 

check the i/c pipes for oil, like more than usual. that sucks ass

 

How did the shaft feel? Real loose and floppy? Or all hard and tight?

 

shaft had very minimal play and spun perfect.

 

Strange. Change the oil recently? Should check both Oil Feed and Return lines for clots... although, if you were running it low on Oil... it'd be dead already.

I've got very little experience in the Turbo Whine department. I've known of a few that did it though.

I'd consult this chart and call Garrett. It their turbo, they'll be able to help a good bit, as well.

 

Holy **** ***** that's a lot of stuff... Guess we will see what happens when it gets torn apart tomorrow.

 

its your car makin the sounds?

 

Yeah the turbo still works just fine, but i don't want to take the risk of it coming apart in my engine... exhaust fins were scraping a little bit, just enough to throw it all off balance

 

my old turbo made a sound like that, come to find out it was a boost leak tho. i doubt you got one if you say yours is fine

 

I didn't have a boost leak though. It spools up just the same cant tell a difference except for the supercharger like noise it makes. you can see where the exhaust fins were cutting into the housing. Only time will kill it.

 

i dunno dude. i hope it doesnt **** out on you at the wrong time

 

Oh don't worry Im replacing it.

 

If your going to take it apart check the center housing rotating assembly for imperfections or damage. If you cant find any damage/imperfections on the fins that is a possible point of interest along with the thrust plate

 

Read dude... lol already found the issue