-RotorDemon-

Gone through all the vacuum lines, intercooler hoses etc. No leaks at all

Wastegate is shut. Not sure what else to say. Everything is stock except the BNR Turbocharger, Charge pipe and BOV. Figured out the smoking problem in the other thread.

Turbine wheel spins free, no shaft play, but will not make any boost at all. Disregard the cheap boost gauge rattle when I come out of vacuum.

What's going on?

rotaryguy481

iTrader: (-2)

To me I may be way off but it sounds like its dry not getting oil

barkz

iTrader: (1)

has the turbo been rebuilt?

-RotorDemon-

I was told it was rebuilt about 3000 miles ago by BNR.

barkz

iTrader: (1)

any paperwork to prove that?

gregs22

iTrader: (12)

sounds like leak, but you mentioned you ran through everything

-RotorDemon-

Only the sellers word whom I bought it through on here.

barkz

iTrader: (1)

doesnt mean **** lol. i bought a stage 4 that basically fell apart when i shook it from a guy on here, and he still hasnt acknowledged me...

198713bt

iTrader: (2)

Not to hijack the thread, but what would be the best way to check this? I'm a little paranoid and have been trying to figure out the easiest (least messy) way to double check oil flow thru the turbo.

Thanks

t2ae

iTrader: (5)

i feel that you really should spend some time checking the wastegate operation....as you said the wastegate nipple was broken off in shipping??did you fix that? how did you fix it? this turbo was working great with no problems at all before it was shipped to you. keep in mind it is a used item......you can contact bryan yourself as it WAS rebuilt by him.....this was a rebulid,balance and new compressor wheel. if i remember correctly it was around $250-$300 for the rebuild. im sorry you are having problems with this. one thing to keep in mind is are you sure you didnt mess anything up with having too much oil as stated in the previous thread????

wvumtnbkr

Remove the drain line and see if oil comes out of it while it is running?

If I remember correctly, you should be able to remove two bolts from the goldish colored tube attached near the front cover. You can put a bucket under it to collect the oil.

Turbos don't use much oil flow. Also, the pressure should be fairly low coming out. don't be alarmed if it doesn't "fly" out of the tube. It should come out of the tube with the same "oomph" as if you were pulling a drain plug on an engine. The flow WILL be less than that.


It has been awhile since I have messed with that plumbing on my car (like 5 years) so feel free to verify my info.


Rob R.

gxl90rx7

iTrader: (1)

it sounds like either a boost leak or the turbo wheels are hitting the covers. but you say it has no shaft play, but is that in or out movement or did you also check to see if the wheel can touch cover by pushing it up/down?

BLUE TII

iTrader: (9)

Noise sounds like preturbo exhaust leak to me which would explain the no boost.

At the beginning of the video when you bring the camera over to the turbo area it is quite loud at idle. It should be barely louder than if you were over at the sparkplug side of the engine. When you accelerate you have a loud ticking noise, which is usually preturbo exhaust leak.

I ran my BNR Stage4 completely dry without oil when I first installed it (had a little help making the turbo feed gasket and a hole in the center was forgotten). It didn't make a noise anything like that even when the wheels were contacting the housings- it just sounded like a very loud spooling turbo- and it spooled into boost just fine as well.

A turbo is a very simple device.
If you take off the filter and can't force the wheels into the housings the bearings are good.
While doing this check that the compressor wheel nut is torqued so that the compressor spins with the shaft- you can hold the nut with a socket/extension and try to spin the compressor with your finger.

Unless the exhaust wheel is completely dog eared to a nub from apex seals going through or the turbine housing is cracked so badly at the volute that it is contacting the exhaust wheel; the only thing left I can think of to keep it from spooling is preturbo exhaust leak.

hiroichi1515

iTrader: (17)

I had the same issue. Turns out heat from the turbo had killed the stock exhaust gasket between the engine and the turbo. I threw on some fd ones and have never had anymore trouble!!!!

MaczPayne

iTrader: (5)

Manifold leak was also the cause of poor spool a while back for me. Giant hole blown out of the old gasket.

-RotorDemon-

The wastegate is fine. I purchased a new actuator to replace the broken one. I am keeping it in mind that it was a USED item that a few people replied on your sale thread that who would want to buy that since the impeller looked like you sucked something into it without a filter after you saying you always ran a filter. Digging further through Google I found the same turbo you destroyed before sending it out for a rebuild. After that you installed it again "ran a few pulls" and wanted something else larger. Thus putting this up for sale as a low mile turbocharger.

I've been working with rotaries for almost 16 years now and have worked for a very reputable shop in this area I am sure many know about for a fair amount of years fabricating, tuning and building all rotary platforms including the second rise of the Mariah 20B FC. I have more than enough under my belt and am asking you and anyone here why the hell would a turbocharger that "worked fine when pulled" have such a problem when directly installed into another car? The only problem I found (in my fault) was the crankcase ventilation was too high venting into the intake of the turbo, not seeping through the CHRA into the compressor as I first thought.

Image of the turbocharger when you had it for sale saying it was rebuilt and balanced by BNR.



And the image when you blew it up before..



Here it is just before I installed it.

Valkyrie

Those are some seriously beat up blades...

t2ae

iTrader: (5)

ok so now you have showed me that you know i got the turbo rebuilt as well???thanks? if you want more "proof" just call bryan at bnr....it is a low mileage turbo with the rebuild...hell probably less mileage that i said it had. i dont know why the turbo is doing what it is doing,i wish i could help out more. all i can say is the car ran great not problems at all when i pulled the turbo off... this is the dyno vido lets see, only about a month before it was sold to you....running fine.....spooling fine......no smoke.....no leaks......no odd sounds

t2ae

iTrader: (5)

and just for the record after doing some "digging" that is not a picture of the compressor wheel from the BNR buddy that was from my knightsport turbo... ill post most pictures if you need more "proof" just be sure before you try to throw pics and facts out to have them correct!

t2ae

iTrader: (5)

i can give you current pictures of the that turbo as it is still sitting in my basement....

BLUE TII

iTrader: (9)

If that is the same compressor wheel in all three pics then after the damage was done shown in the 2nd pic it was "budget rebuilt" using the same compressor wheel with debur and rebalance.

You can see how the boss below the compressor wheel nut has been ground away for balance on the 1st (for sale) and 3rd pic (turbo you received) and is whole in the 2nd pic.

-Seller has stated that is a different turbo in the 2nd pic-

Have you contacted Bryan at BNR? The seller is telling you it is a BNR rebuild you have purchased, that is enough reason for me to contact BNR directly to verify this fact and he will probably be kind enough to help you trouble shoot as he is very helpful and knowledgeable.

REAmemiya_fan

not to take this thread out of context, but what exhaust is on your 10th AE? Sounds awesome

t2ae

iTrader: (5)

it was a full racing beat exhaust

-RotorDemon-

I contacted Bryan for the "proof" He looked into it and here is his reply:

So there is the proof. So why not just man up, do the right thing and give me my money back...

barkz

iTrader: (1)

Oh snap