Turbo spraying oil

[Lextreme II]

Hey Gang,

Got the GT40 repaired by Precision and as i start the engine. This is what happened. I tightened the turbine and the CHRA to the max and made sure the whole unit install properly. Unstall and reinstall the unit about 3 times now and still leaking from the gap. Very disappointing and need to send it back again.

This happened right after i start the engine. I can understand after long driving or abuse. Right after the engine start oil start to spray out of the gap.
http://lextreme.com/video/gt 001.avi
http://lextreme.com/video/gt 002.avi

Long video, so dont click it if you have dial up.

 

[chrisman]

hi lex, i have dial up, so i didnt look at the vid..but what kinda/size oil supply and oil return lines do you have.? generally, the turbos need a large dia. oil return line..and the oil supply should be on the small side..

 

[Lextreme II]

4 AN in
10 AN out

 

[1youZee]

is this a new leek or has it been doing it since you got the turbo?

 

[chrisman]

arent those turbos ball bearing? ball bearings require much less oil than a reg bushing type bearing..

 

[chrisman]

heres a pic of the oil supply fittings and lines i used for the TT turbo setup.. it comes from where the oil pressure sensor was/is.. its still there, but i T it in..its difficult to see the lines, but they are common steel brake lines.. i think hey were 1/8..

 

[Lextreme II]

Chris,

Its a standard bearing. I have the same oil supply and return its a 10 AN. No sharp turns or kink. I think the problem is the machining from Precision and the seals are not fully pressed. The housing is not orginal.