2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

blown turbo?

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Old May 16, 2010 | 03:52 PM
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From: the dalles
blown turbo?

so i just finished my turbo swap and i let it warm up, prolly judtt idled for like 15 minutes before i drove it. i was drivin it nicely and decided what the hell lets get into boost. the second time i hit boost it started to clank and appears to be burning coolant. motor is running right, do i dont think it has anything to do with that. i took a wooden dowel to listen to where its coming from and it sounds like the turbo. couldnt hear anything in the rotor housing.
so does this sound like the turbo is bad? or something else? it all happened as soon AS I hit boost.
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Old May 16, 2010 | 06:15 PM
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whats the play on the turbo like?
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Old May 16, 2010 | 06:31 PM
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not sure yet. was still too warm to actually take off. but before i stuck it in there was no playat all. not forward and back or side to side. seemed to be a great turbo
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Old May 16, 2010 | 07:47 PM
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ok pulled the turbo off, no shaft play at all. but the front exhaust port was soaked in oiland the turbo had a bunch on it too. almost thinking my motor is fucked up
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Old May 17, 2010 | 11:24 AM
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ok so i now know i need to tear the motor open. im jusxt kinda curious as to what inside of therewill let an excessive amount of oil into the rotor housing?
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Old May 17, 2010 | 05:12 PM
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well before you go doing that, is the car burning fluids? any smoke out the exhaust especially on deceleration at higher RPMs? do you premix?

oil in the combustion chamber could be a bunch of thing...assuming it actually is oil and not fuel or coolant mixed with soot. IF it is oil it's probably the oil control rings or something with the oil injection system...
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Old May 17, 2010 | 07:16 PM
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ok a bit more info. seems i left a bunch out. all emissions gone. no omp, running premix. its definatly oil. and lots of it. doesnt seem like a mixture of fuel and coolant. but it smokes like its burning coolant, not oil. it smokes like crazy as soon as you turn the car on.
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