Tips on rebuilding B16g

[newTSIguy]

I have been having really bad turbo lag on my MHI Big 16g, I wasnt hitting full boost (12psi) till about 5300rpm's in 3rd gear almost 6k in second, so I decided to do a BLT today. When I hook my tester up to the turbo inlet I could not pressurise my intake tract more than 14psi and I was loosing alot of pressure into the crankcase, fast.
I narrowed the cause of this down to my turbo. When I hook the tester to my TB elbow I can pressurise my intake tract to 25psi within seconds and it slowly bleeds down.
So I have decided to rebuild the turbo myself, I am confedant I can do it, and I understand the procedure for the most part, but for the fact I have never rebuilt a turbo I was hopeing some of you that have done this yourself might have some usefull tips or insight that may not be in the how to's and walkthroughs I have found in my surches, I just want to make sure I soak up as much knowledge on this as I can before I dive into it. I was planing on useing Trader Gregs reuild kit,Mitsubishi TD05 TD06 Major Turbocharger Rebuild Kit any tips or advise?
thanks in advance,
Kenny

 

[Bud92gsx]

http://www.dsmtuners.com/forums/art...rcooler/316421-t3-turbo-rebuild-part-1-a.html

http://www.dsmtuners.com/forums/art...rcooler/316422-t3-turbo-rebuild-part-2-a.html

 

[my dreamt dsm]

Not sure if you sub to this guy. He's a member on here!
How to Rebuild a Turbo - Part 1 of 2 - YouTube

How to Rebuild a Turbo - Part 2 of 2 - YouTube

 

[goodbuds]

trader greg kit

 

[bryanwheat]

Did you check the pcv valve? IF it is leaking it will pressurize the crank case. You will usually have a little leaking thru the seal in the turbo because it is not an airtight seal, it isn't meant to be. It there isn't any excessive shaft play and it isn't leaking oil in would look elsewhere.

 

[newTSIguy]

Did you check the pcv valve? IF it is leaking it will pressurize the crank case. You will usually have a little leaking thru the seal in the turbo because it is not an airtight seal, it isn't meant to be. It there isn't any excessive shaft play and it isn't leaking oil in would look elsewhere.

Yes I did, I caped off the PCV hose from the IM to eleinate the PCV valve as the cause, I was also able to eleminate the the piston rings, although they do leak a little into the crankcase, I am not getting as much pressure in the crankcase when testing from the TB elbow as I am when testing from the turbo inlet, and with the PCV eleminated that just leaves the turbo as the culprate unless im missing something. I am also hearing my oil bubbling in the oil pan.

Also shaft play is minimal and I have not pulled off the 02 or hot side yet to check for oil but I do have a very light bit of smoke coming from the exhaust at idle when cold. and I know my valve seals are not causing that.

Thanks for the links and vid's guys, I have seen both walkthroughs and they are both very great and detailed walkthroughs I just want to see if anyone has any insight/tips that may not be on the videos and writups. I have done lots of surches before posting this thread I just want to pick your brains a little and squeeze out every last bit of knowledge from the community I can before I atempt this.

 

[90 Talon AWD]

what is the turbo oil seal made from? is it just a metal ring?

 

[newTSIguy]

Ya pretty much.