T25 turbo Question

[89 S13 Coupe]

I searched and couldnt find anything similar. I have a T25 that when it starts to spool it makes a grinding noise, when i first put the turbo on i checked for play and there was none, the first week it didnt make any unusual noise then i didnt drive it for a week and it started making the grinding noise. what should i do to check it?

thanks

[da40]

take th piping off check for oil inthe tubine

[89 S13 Coupe]

take th piping off check for oil inthe tubine

ok i took the piping off and theres some oil in there but it looks like normaol blow back.

would it do scream like it does if there was an exhaust leak. i noticed that one nut is missing and another was loose(turbo to manifold)
Modified by 89 S13 Coupe at 6:48 PM 9/5/2006

[S13FASTBACKSR]

is there shaft play now? do you have white smoke coming from your exhaust? and im not doubting you but are you 100% sure its the turbo making the noise?

[Hijacker]

I've had those bolts on the mani to turbo flange come off before. The sound they make is best described as a duck. It's the exhaust gasses blowing over the gasket.

There could have been a stoppage in the oil feed to the turbo. Pull the oil outlet hose off the bottom of it and see if any oil has come through it.

[89 S13 Coupe]

no shaft play still, no smoke , well the noise does it when i step on the gas other then that it doesnt do it while its at idle.

ill check the oil line to see if oil i getting in