Turbo Problem. Turbine Don't Spin freely

[khmer504x]

hey people.

i just finished my turbo project on sunday 24th,2005. everything was good.......except for one thing.......the turbo. the turbine doesn't spin freely. Sometime it spin when car is on idle and sometime it doesn't. It'll start spinnin when i gas it. Took it for a drive and its shows that it was boosting at 5 psi. I figure its a bad turbo.....but hey......let me ask the expert. any help would be great. Especially on helping me get a good working turbo for a nice price. . Or even trade for some brembo rotors.

[Boost_Lee]

check your exhaust manifold for leaks...sounds like some air might be escaping and not making it to the turbine housing

[MRX]

i've seen it before, what kind of turbo is it?

[Backfire32]

mines like that too! but it works fine and boost fine tho. but i need to do a rebuild cause one seal is slightly leaking oil.

[westsideaccord]

Maybe the bearings? Do you have pics?

[khmer504x]

i was having a lil problem with the mani but i had some help mounting it in. everything is good. Theres plenty of hot air coming out if the hot side, i currently have not down pipe connected. possibly bad bearings. oh its a T3 .48 internal wastegate. current boost = 5 psi.

[khmer504x]

oh hey.... is the turbine suppose to be spinning when im on idle? man i was soo scared to punch it cuss i was running with no downpipe.....that thang was loud as hell.

[ChroNicBoosT]

see my turbo is the same way.... wen its idlin at 600-700rpms sumtime it stop spinnin, but thats mainly cause its so fukin big.... as soon as i touch the throttle it starts up again, so if its a larger turbo its normals as it takes more exhaust flow to spin it, but if its a T3 like you said, it should still e spinnin.....

[khmer504x]

see my turbo is the same way.... wen its idlin at 600-700rpms sumtime it stop spinnin, but thats mainly cause its so fukin big.... as soon as i touch the throttle it starts up again, so if its a larger turbo its normals as it takes more exhaust flow to spin it, but if its a T3 like you said, it should still e spinnin.....

so the problem is bad turbo with old parts???

[KillerCam282]

so the problem is bad turbo with old parts???

I agree. Most T3's spin on the idle. If you T3 is not spinning you have some serious problems. I say soon it will be time for you to replace that turbo.

[skinnye1]

Sounds like you have a bad turbo, I would take off your air filter and simply check the shaft play, and see if any fins touch the turbine.

[khmer504x]

yea.....i figure......man dis sucks.....i've been hunting for a bargin turbo for the past day. sigh........

[Turbo_p]

I bought a brandnew T3 Super 80 for my Chevy V8
It sometimes creeps or stays still when @ cold idle.
When it is warmed up it spins very slow, but even then it stops sometimes.
I don't worry about it...........
I only worry about my 80 psi oil pressure. But hey, it doesn't leak (yet)
I'd say it is normal.

[MRX]

i'd say its normal too unless you see or smell oil burning. If you want it to spin then you should have got a ball bearing ya know.

[Backfire32]

some turbos do not spool when at low ideal rpms. if its boosting okay and not a major oil leak it should be fine.

as soon as you give it slight gas tho it should start to spin.