Originally Posted by Full_Tilt_Boogie (Post 628503)

No axial shaft play maybe, but there has to be radial shaft play for it to grind out on the housing.

Few questions:
1) were you using an oil feed restrictor?
Yes, ordered it with the turbo.
2) How did you "prime" the turbo with oil?
Left the coils/fuel unplugged, cranked the motor over for about 10 seconds, 3 times after I had pressure on the gauge.
3) Where is your wastegate signal source?
The bolt on compressor adapter has a fitting.

Originally Posted by Full_Tilt_Boogie (Post 628503)

No axial shaft play maybe, but there has to be radial shaft play for it to grind out on the housing.

Originally Posted by Underway (Post 628505)

Google searched bad Garrett, found this:

http://forums.evolutionm.net/engine-...-gtr-site.html

Hope it's B.S.

Originally Posted by Underway (Post 628511)

There is just enough play to barely allow the blade to touch and none in and out. It actually looks like the blades are deposited on the housing rather then digging out the housing. I have no way of messuring but the turbine doesn't look centered in the housing outlet. 2 playing cards distance on the side that didn't hit.

I'll work on some pics.

Originally Posted by hustler (Post 628513)

Um...if there is enough shaft play for the turbine to touch the housing, its bad. In for Daddy JKav to sign in and tell us the answers to your mystery.

CHRA exchange is $450 from ATP.

Originally Posted by hustler (Post 628516)

Do the grooves go all the way around the housing?

Originally Posted by Underway (Post 628507)

What do you think?

Originally Posted by Full_Tilt_Boogie (Post 628521)

GT series turbos have a built in oil feed restrictor, meaning you dont need one built into the fitting, you just use a normal AN fitting.
Im no expert on fluid dynamics but maybe having 2 restrictors could have caused oil starvation. (This is why I immediately asked if you were using a restrictor)

Originally Posted by JKav (Post 488933)

That doohickey is actually the locating pin for the bb cartridge, and the Garrett bb turbos have had those since forever. So you basically don't even have to think about it.

As such, the advice to add a restrictor so that you get ~35 psi (or whatever it is, I forget) at the turbo always has been and will be valid.

Originally Posted by Full_Tilt_Boogie (Post 628521)

Sounds like you primed it good, and I know you could have overspun it with your signal source on the compressor

BUT
GT series turbos have a built in oil feed restrictor, meaning you dont need one built into the fitting, you just use a normal AN fitting.
Im no expert on fluid dynamics but maybe having 2 restrictors could have caused oil starvation. (This is why I immediately asked if you were using a restrictor)

Even with Garretts quality coming into question recently, you never really see these kind of quick failures even with the no-name ebay turbos unless something was done incorrectly.
Its still possible Garret just fucked up, but unless some of our members with engineering degrees chime in and say that a second restrictor wouldnt cause oil starvation, then I would think that it was likely the cause.

Either way, though break, It sucks to see a brand new expensive part bite the dust.

Originally Posted by hustler (Post 628522)

Are you certain the turbine housing and CHRA are seated properly?


https://www.miataturbo.net/showpost....33&postcount=5

Originally Posted by Underway (Post 628523)

Why would the install kit have a restrictor in it then? Recommended from the distibutor for gt25-28's?

Never thought about the over spun issue. Where else would you run your signal from? Also, the car was never over 3500 rpm, the link ecu limits it to prevent boost. If I never saw anything above 0 on the boost gauge then how could the turbo be overspeed?

Originally Posted by hustler (Post 628522)

Are you certain the turbine housing and CHRA are seated properly?

Originally Posted by delcbr (Post 628643)

reading that letter from a Garret employee is believable for me.
ive worked for Rolls Royce Aero engines and the blades we manufactured were defective basically rolls royce wanted to cut cmanfacturing costs which meant skipping processes in manufacturing which lead to hairline cracks on their blades.
the results was many engine failures in service.
emirates words were we are extremely concerned concerned with the quality of rolls royce engines and for the safety of its passangers.
this cost my company multi milions to recall engines to remove stator blades from engines which had blades made with the shit manufacturing process.

also i had a porsche boxster 3.2s and it was shit the wheel nuts rusted the coil packs fooked up and the water pump failed and the car only had 40k miles the paintwork was incredibly thin. i really wasnt impressed with porsche quality it was actually boring to drive.the mx5 on the other hand was a joy!!!

i gues when companys make a name in quality they cut costs reduce employe numbers etc what appens is they make alot of money short term but long term company reputation suffers.

this happened with mercedes they made great cars at one time then they cut costs and the cars they made were shit for about ten years until they started investing profit back into manufacturing.now i work for a company which is been bought by a consortium which specialises in buying restructuring then selling on for profit.
first thing theey done was get rid of company pensions and robbed everyone who worked there of their pensions then they they told many people they would lose their jobs but re employed them through an agency on lower salary and non permanent position and they are cutting my company to the bones to make the largest profit possible then they will sell it on stock market how long my company will survive after this iam unsure but no one gives a fook now.

so yes i do believe the garret letter its happening everywhere especially now the world is experiencing a recession companys are tightening their belts and still trying to make maximum profit.

Originally Posted by delcbr (Post 628950)

Seeing as you want to educate me in using the shift key Why don't you learn that irish come from ireland and scottish come from scotland you ignorant retard.and what's your point caller?

Originally Posted by delcbr (Post 628950)

Seeing as you want to educate me in using the shift key Why don't you learn that irish come from ireland and scottish come from scotland you ignorant retard.and what's your point caller?

Originally Posted by Underway (Post 628515)

The Garrett site says to contact the distributor.

He gave me a heads up about how strict Garrett is and the warranty inspection process. Basically I send it to them, they decide what happened and we go from there.

Originally Posted by Underway (Post 628531)

Other then that, looking at it, No. The blades only hit on one side of the outlet.

Originally Posted by Braineack (Post 629050)

yeah looks like it's not all straight and it's bolted together on an angle.

Originally Posted by road-raser (Post 629271)

whats this shift key deal?? someone said something to me about not knowing how to use a shift key. and im confused about it. sorry to thread jack.

Originally Posted by Full_Tilt_Boogie (Post 629280)

There's not a single capital letter in your entire post, you fucking retard.

Originally Posted by hustler (Post 628672)

One time I was given free reign of a bagel store I worked in. I was in charge of everything. Everyone was gone for the day. I made a hero out of bagel dough. Whole wheat dough, everything bagel toppings. I made the bread into garlic bread, with REAL garlic and REAL onions that I sauteed up in fresh butter. The day before, my boss was having a family party so he ordered REAL Italian gourmet meats from Italy, to do it right. He made all the platters ahead of time, but still had leftover meats that he said we could use for our own delight. Real prosciutto, real salami, real provolone cheese that was unprocessed and unpasteurized. Capicola ham, spiced ham. I made a spiced mayonnaise myself, in the store. Roma tomatoes. Romaine lettuce that I delved through to find the perfect pieces. Red onion. I stacked the meat so that it would be fluffy, folding each piece and making sure that it was in line with the bread-horizon. I used a perfectly sharpened bread knife to cut it on a slight diagonal across the hero-bagel-bread. I roasted some red peppers that we had over our grill, and used the true, raw olive oil that he had used for the party for antipasto trays. I used a few olives to make a small tapenade that went into the center of the bread, injected via turkey baster. After I cut it, I wrapped it up and put it into our walk-in refrigerator to marinate for about half an hour. I made a sandwich whose street value was easily over 150 dollars. I made two of these sandwiches. I gave one to my friend Kenny for his birthday. The other one I ate over the course of a day. I ate nothing else that day. I wept. Guys, I don't want this to sound like some bullshit story, but I fucking cried. I fucking cried over this sandwich, and I think about it every few weeks. This was almost four or five years ago.

Originally Posted by MezJr (Post 629305)

Need to make that into a romantic comedy. Also, I like the idea of a sandwich with "street value".

Originally Posted by mezjr (Post 629689)

about the turbo, i say just rev it and it should smooth out.

Originally Posted by Braineack (Post 629699)

I used to work at a bagel place. it was win. free bagels ftw.

Originally Posted by Braineack (Post 629727)

I'm an everything fan myself. but yeah, did the 4am sat/sun thing. i didn't mind, fresh bagels are worth it.

Originally Posted by Full_Tilt_Boogie (Post 629709)

wtf...

Originally Posted by ScottFW (Post 629758)

Wirelessly posted

The best bagels are boiled and baked New York style. When I lived in houston I'd drive 15 minutes each way to this one shop because it was the best in town. Bagels made by real old school Jews. Or at least by Mexicans under the direct supervision of Jews. They had a banana nut bagel that I still long for.

Originally Posted by Braineack (Post 629699)

I used to work at a bagel place. it was win. free bagels ftw.

Originally Posted by budget racer (Post 629710)

+1

It was my first job. I was promoted to baker at the age of 16. The early wake-up was a bummer.....but a fresh hot blueberry bagel straight out of the oven w/ cream cheese is a little piece of heaven.

Originally Posted by Braineack (Post 629727)

I'm an everything fan myself. but yeah, did the 4am sat/sun thing. i didn't mind, fresh bagels are worth it.

Originally Posted by Stephanie Turner (Post 629032)

Having had over 50 turbos tested for various failures, NEVER has one come back with an actual manufacturing problem. And, honestly, that is all the warranty is good for. If the turbo is made or assembled wrong. My experience is that 99.99% of all turbo failures are not covered under warranty. ATP will tell you the same thing also. Rarely, do they replace a turbo under warranty. I don't know where it is sent from the distributor, it's on it's way there now. I'll post the letter I enclosed with the turbo next. Would it be possible to mate the CHRA at an angle if I only loosened the housing bolts by 1/2 turn?

99.9% of all failures are user induced. Whether it be negligence (usually unknowingly or Teflon tape used on a fitting no tape, copper washers on the banjo bolts) or the turbo ate something the motor spit out. Since you had excessive blow by I did???, I would double check the motor. Usually you only see turbine side damage/failure when the turbo has foreign particle damage.

In the last conversation I had with a Garrett engineer, I was told Garrett had only replaced one turbo in the last two years under warranty. It had failed from the incorrect installation of the seals. One turbo in who knows how many???

You will have to send the turbo to ATP for evaluation. They will charge you a $50-$75 fee to look at and test the turbo. The fee is in addition to any fees incurred from replacing the CHRA and turbine housing replacement. They will tell you whether or not the turbine housing can be salvaged. CHRA replacements start at $450, depending upon the turbo size. I have seen some go for as much as $700. If you want a chance in hades of getting the turbo replaced under warranty, you need to be up front with ATP about an oil catch can being installed check, leak down AND compression test results Didn't include that, whether or not an oil restrictor is used, and PCV valve info. 99.9 % of the time ATP can provide you with the cause of damage and the evidence to support it. It is most likely from foreign particle damage. i.e. Teflon tape being used, foreign particles in the coolant or oil both are brand new and I used distilled water, or something from the motor (i.e. piston ring) failed it. I do not send in turbos for evaluation unless a compression and leak down test have been performed, an oil restrictor has been used 0.32 (in some cases), and the PCV valve is tested to be good check. I find it to be a waste of every one's time to try and get the turbo replaced under warranty unless you can isolate the problem to the turbo, and the turbo is not the symptom.

I would also check your manifold for any damage on the inside. Any scrapes or clean spots will also tell a story used a dental mirror and a flash light, nada. Good luck! Thank you for the info!
Stephanie

Originally Posted by hustler (Post 628672)

One time I was given free reign of a bagel store I worked in. I was in charge of everything. Everyone was gone for the day. I made a hero out of bagel dough. Whole wheat dough, everything bagel toppings. I made the bread into garlic bread, with REAL garlic and REAL onions that I sauteed up in fresh butter. The day before, my boss was having a family party so he ordered REAL Italian gourmet meats from Italy, to do it right. He made all the platters ahead of time, but still had leftover meats that he said we could use for our own delight. Real prosciutto, real salami, real provolone cheese that was unprocessed and unpasteurized. Capicola ham, spiced ham. I made a spiced mayonnaise myself, in the store. Roma tomatoes. Romaine lettuce that I delved through to find the perfect pieces. Red onion. I stacked the meat so that it would be fluffy, folding each piece and making sure that it was in line with the bread-horizon. I used a perfectly sharpened bread knife to cut it on a slight diagonal across the hero-bagel-bread. I roasted some red peppers that we had over our grill, and used the true, raw olive oil that he had used for the party for antipasto trays. I used a few olives to make a small tapenade that went into the center of the bread, injected via turkey baster. After I cut it, I wrapped it up and put it into our walk-in refrigerator to marinate for about half an hour. I made a sandwich whose street value was easily over 150 dollars. I made two of these sandwiches. I gave one to my friend Kenny for his birthday. The other one I ate over the course of a day. I ate nothing else that day. I wept. Guys, I don't want this to sound like some bullshit story, but I fucking cried. I fucking cried over this sandwich, and I think about it every few weeks. This was almost four or five years ago.