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Well, my turbo stopped spinning.. need some input - 6G Celicas Forums

Topic #29957 41 posts Started by mark_426
Glad I have a MAP sensor then >tongue.gif>

As previously said then, try spinning the compressor wheel and check for movement etc.
Gary

1994 ST205 Celica GT-FOUR Group A WRC - running in new engine1993 Rover 220 GTi tarmac rally car (under construction) 3SGE power here we come....GT-Four spec list
You need to find out exactly why the old turbo died before fitting a new one or it may all end in tears.

1994 JDM GT4 WRC
yea, sounds like you snaped the shaft.
not good.
could be a few diffrent things IMO you running 9lbs with no intercooler prolly had somthing to do with it,...but more than likely it was somthing else.
do the blades on the compressor wheel look deformed or chipped?

Former Team 5SFTE pro member ;)13.6@108MPH, 5SFTE Powered
-mark_426+Oct 14, 2005 - 7:04 PM
QUOTE(mark_426 @ Oct 14, 2005 - 7:04 PM)
Anyway, my turbo currently will work about 10* back and forth from its current location, and then it feels like it hits an obstruction. It turns freely for the few degrees it does turn, but will turn no further.
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edit, this is from either side

If anyone needs interior stuff, etc, I'm parting whats left of my celi out. Just ask.
if either side will only more 10* definately do not drive it...
air will only be able to work around the blades, and you go nowhere. same on the exhaust side, it will cause a pressure on the exhaust side, and try forcing that air back into the cylinder, which without enough air will be more gas, and boom.

i put $$ on the shaft snapped from lack of a BOV. thoes blades are spinning at some 100,000rpms+? and once u boost and let off, the throttle plate shuts, and your 9psi went straight back to where it can from, instantly that 9psi took the wheel from forward to reverse and that should explain to you why it no longer spins freely..

lack of an intercooler @ 9psi is BAD, but i personally dont have a big problem with boost and no intercooler... 9is too high for no IC thou. at worst no IC would send EGT's really high, cause denation, burn pistons/rings, damage headgasket... did u look at the turbine wheel (exhaust wheel in turbo) that might have snapped/cracked, lost some blades?

find a new used rebuilt turbo and get someone who knows what there doing. im somewhat local and willing to give u a hand. if u can get it up will get some piping and we can get that FMIC setup in no time.
THe BOV has never been removed from the car. When it was not working correctly, it vented TOO easily.

The turbine wheel, and compressor wheel, are both fine.

As far as what steve said, is there any way to open the wastegate to make it driveable for a few days? I could also make a temporary intake bypassing the turbo housing, if that'd be better.

Right now, I'm talking to a guy in KY at autolab performance, who has a turbo to sell, and the price seems decent. I can have that by hopefully next week.

If anyone needs interior stuff, etc, I'm parting whats left of my celi out. Just ask.
mark, u cannot bybass the turbo and drive it around. it will cause a larger headach. go get a $200 beater car for the week and dump it after u get this fixed.

the motor is made for boost. the exhaust is still doign to spin or try to spin or w/e to your trubo and w/o the back pressure of the intake piping it will cause it to boost to who knows what and its going to be destroyed even more. jsut park it. nothing u can do. liek this kid on the eclipse form i know, wanted to break in the newly build motor but w/o boost so he but a cap on the turbo outlet... gee that built pressure and it had no where to go.. tore the wheels right on the unit...
Hey mark are you talking to Billy? I just dropped my car off there to get my rear mount made, and my exhaust done.
Small world, same guy, Billy Roberts.

I already bought and he should've shipped my new turbo by now.

If anyone needs interior stuff, etc, I'm parting whats left of my celi out. Just ask.
Probably did, I live 2 mins from his shop.