Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

sudden loss of power/oil inside intake during auto-x (was: bah what a day)

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Old 06-25-2006, 09:09 PM
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bah what a day

just when i thought i was done toying with my engine for the season... Something in the engine fries don't know if the head gasket went or maybe something turbo related went. Personally im leaning towards turbo related cause leading upto today now that i think about it, the performance just hasnt been what it was when i first got it tuned but anyway.

it was the last run at autocross today. not having a decent set of runs really either but all in all i was progressively getting better times. anyway downshifted into first going through the first turn around and punched it. shifted into second was hella sluggish felt almost like i was in 4th instead, next thing i know i hear a sound similar to a blow off valve and a **** load of white smoke comes pouring out of the exhaust. I shut it down imediately and get the roll of shame back to the staging area.

Josh was nice enough to give me a hand checking everything out. The whole intake assembly was smoking and the filter element seemed saturated with oil. there was also a few random splaters in the engine bay. no oil or coolant mixed anywhere nore did there appear to be any leaks or anything in the intercooler.

Got it towed to hybrid for diagnosis tomarow and we'll go from there. the Tow truck lady was hot too! so it was a nice ride to the shop. heh i guess that made me some what lucky.
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Old 06-25-2006, 11:42 PM
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Seal go out in the turbo? Head gasket would mean coolant mixed with the old I believe.
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Old 06-28-2006, 10:48 PM
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I saw the pictures you posted on Nasioc... Crazy! Post them up here
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Old 06-29-2006, 06:43 AM
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I'm getting good at this, With the engine running take your oil cap off, if it is spitting oil and has excessive blow-by, chances are likely it a ring land. I just destroyed #4 piston the other day. Your story sounds similar to mine.
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Old 06-29-2006, 10:28 AM
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It could also be your valve case ventilation system. I actually think this is what it is...
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