0 boost whats going on!!!

[vsalas793]

my car was workn fine. it was at 13 psi. i turned down bc i needed to do some work at 13 psi. i was driving to get gas when everything was fine. but then after i pumped gas i drove and had no power or boost. it would build any boost. no noise from the blowoff valve. it seems like its a non turbo eclipse. it seems like the turbo just died on me. what happened.

 

[vsalas793]

just to let u guys no its a evo 16g from mitsubishi ported and flappered. from extreme psi. it is a good turbo. but now i need to know wats goin on. i had this turbo for about 8 miles. it work fine before

 

[Blk95gs]

Could be a boost leak somewhere. Check your intercooler pipes for leaks, first and foremost.

 

[MrBoxx]

If boost is going up to 0 and no higher, check your wastegate actuator arm and make sure it hasn't fallen off the wastegate flapper arm. This happened to me once. Sucked big time. now a paper clip holds it on.

Next, boost leak test. Link

Next, pull off the intake pipe and check the turbo for shaft play. Make sure the compressor wheel spins freely, with no resistance. Grab the nut on the end of the shaft and try to wiggle it. (I know how that sounds.) Try to move the compressor wheel up and down, side to side, and in and out. If it moves in and out, the turbo is bad. If it moves side to side or up and down a noticeable amount, the turbo is bad.

Do a boost leak test.

 

[Blk95gs]

If boost is going up to 0 and no higher, check your wastegate actuator arm and make sure it hasn't fallen off the wastegate flapper arm. This happened to me once. Sucked big time. now a paper clip holds it on.

Next, boost leak test. Link

Next, pull off the intake pipe and check the turbo for shaft play. Make sure the compressor wheel spins freely, with no resistance. Grab the nut on the end of the shaft and try to wiggle it. (I know how that sounds.) Try to move the compressor wheel up and down, side to side, and in and out. If it moves in and out, the turbo is bad. If it moves side to side or up and down a noticeable amount, the turbo is bad.

Do a boost leak test.

Yes, I had problems with an actuator arm too, forgot to include that as a potential problem. I had an atmospheric WG dump so it was easy to hear that problem

 

[2fast4]

Another thing you can do is
1) on low gear and hi rpm like 5k or something and do a wot. If it moves, tis the wg actuator arm off,
2) spin the comp wheel with your finger and see if it spins. If it doesn't move, turbine wheel is seized up from not cooling down the turbo. In which case, you can use the long socket and turn the nut on comp to free it. Doesn't sound like you did any hard pulls though

 

[steve]

Hopefully it's something simple but 8 miles is plenty to trash a new turbo if you don't have a good oil feed.

Steve

 

[vsalas793]

thanks guys. i took of the intake this morning and check that shaft. that thing was stiff and wouldnt go anywhere. i tried to move with my finger. wouldnt go anywhere. then i got a ratchet with extension and turned the little nut. clockwise. it freed up the shaft. but it also loosened up the nut. the shaft turns. but only when the nut is loose. when i tighten the nut to how it was before. the shaft doesnt turn. it gets all stiff again. i tried to wiggle it. but it doesnt wiggle.

 

[vsalas793]

i left the little nut a little bit loose just enough to for the shaft to spin freely. but when i went to go drive the car it didnt spool at all. . it probally tightend up again. what can i do.

 

[steve]

Sorry, It sure sounds like you trashed that turbo. Before putting another on you'll need to figure out if you oil feed failed, the water, or if you injested something.

Steve

 

[Tsi_User]

Sorry, It sure sounds like you trashed that turbo. Before putting another on you'll need to figure out if you oil feed failed, the water, or if you injested something.

Steve

yep definatlely sounds like your turbo was starving for oil. How did you prep it?

 

[vsalas793]

well i have ss line to the turbo to the oil filter housing so it gets fresh oil. and i mean it gets water. so i dont see what could have cause this. i recently took off the exhaust manifold to do some work on the water pipe. i was spraying wd4 on to some bolts and some of the wd4 dripped into the turbo. could that have caused anything like bearing to dry up.

 

[vsalas793]

also just to let u guys know the i checked the shaft with the nut off. and it has in and out shaft play. but no side to side play. only in and out.

 

[vsalas793]

hey guys i figure it out. it was a washer fell into the turbo and it got stuck in the exhaust compressor wheel. thanks. everything is back to normal.

 

[oldman]

but no side to side play. only in and out.

Glad you found the problem but if you still have in and out shaft play, most likely the damage is already done.

 

[vsalas793]

i speced it out for myself and it only does a little when i take of the little nut tightens down the compressor wheel. but the i put the nut back on and tightend just enough so wont com e loose the compressor wheel was nice and stiff and spins freely like it should. i was lucky the washer didnt bounce around and do damage. it just got stuck under the exhaust compressor wheel. it had no damage when i inspected it. i was lucky. put everything together did a little tune and its a monster all the way through 3rd gear. thanks

 

[2fast4]

Can you expand onto rest of us how the washer got into turbine? Was it part of package or was it user's fault?

Turbine blades are very durable except when it's too young. When it's young, it'll bend but not break off.

Another advise - when you turn the comp nut with ratchet, turn it clockwise. Otherwise, you'll have to take off the turbo off. Nonetheless, good to hear you found the source