8v92 turbo question

[Lee Bradley]

The shop should replace the turbo; they damaged it.

If you had damaged it, clean and round the broken edge with a die grinder and remove a same size section of the blade opposite.

[Sammy]

Have them replace just the damaged impeller. Not a big deal.
They can check runout of shaft while it's on the bench, that will determine if R&R of unit might be necessary.
Best of luck. 

[HB of CJ]

Have NOT read the other posts, sosss if I repeat stuff, sorry.  The machanic made a simple mistake.  It happens.  Replace the turbo.  Don't run the engine until soss.  The turbo could grenade., causing massive other damage.

The mechanics PROBABLY said it would be OK because they obviously did not want to fess up to their mistake.  Human nature.  Looks like that shop is going to lose money on your job.  Insist on replacement.  Protect yourself.  HB of CJ

[JohnEd]

Fellas,

Gee, I'm confused.  Are saying that he should rebuild the turbo?  Right now?  And, not even give it chance to perform normally till out of the shop?  Are you saying that he should R&R the thing at his own expense if the shop will not accommodate?  With this consensus are you saying that the shops sluffing this off bodes ungood for the other work?  So many questions I have.  

I have eaten some serious CROW in the past because the guy that screwed me was personable and charming.  Screw your nice guy instincts and pay attention to the "signs" and the advice coming from "your universe".  After all, who loves ya?   Were it me I wouldn't even let them hit the start button let alone leave under power.

Good luck with this Ace.  It amazes me at the turnout on your behalf...not that you haven't earned it, now.  And look at the calibre of men/knuts that are pitching in....lucky you.

John

[Ed Brenner]

Ace, Let's look at the other side. Remember in another post when you first went to the shop, you saw an engine there and had a thought of a re-power. Run that turbo as is,and hope that the engine is still in the shop, when the turbo flys apart,cause it will. You have had enough trouble lately.

Remmber if it ain't broke don't fix it WELL IT IS BROKE !!!

MY opinion but did turn wrenches for 32 years and seen many major problems that could have been prevented.
Ed
  (77 Eagle last seen at Jacks 09 party)

[Blacksheep]

Well the longer this bus sits over the pit, (the pit from hell I call it) the more we find wrong!

Had a discussion with the shop owner today and he assured me that he discussed the very small chip with the mechanic doing the work AND the very old very experienced mechanic in the shop and everyone agreed that it is so small that it won't make a difference! I mentioned the unbalance concern and they ALL said it wasn't enough of a chip to make it bad enough and that many a motor have been built with chips far worse than what I am concerned about.  All I can do at this point is go with what they tell me and hope for the best! Note was made that it WOULD be taken care of if and when any problem occurs. The owner said, that IF anything were to happen, the first thing would be a loss of oil. Yeah I know that it could do really bad damage and I'm hoping it won't but without making waves at a shop that is local for me and so far is doing a jam up job on everything else, and they all are pretty nice to deal with and talk to, not to mention, I AM always allowed IN the shop, IN the pit, at any time during the day or night, even after closing! Most shops won't let you near the mechanic what so ever!

Anyway, as of this writing, I am going to roll the dice and go with they say.

I DID tell the owner that IF anything did happen that was catastrophic, he still had 2 series 60's that he could make me a heck of a deal  on and he DID agree! Hey things happen for a reason is what I always say!

To top that, I have to order a WHOLE new exhaust system. That means a new muffler and pipe coming from the turbo. OUCH! Prevost price is:

muffler $685.59
pipe      181.37
           _______
          $866.96

Ah the joys of routine maintenance!

Well it hasn't been done since who knows when! Now it will be!

Ace

[JohnEd]

Ace,

You are the one that is there and looking people in the eye.  I don't think any would accuse you of not having any good judgment.  Still, nice to see all the concern for your best interest, though.  A good shop that you have good rapport with is hard to find, let alone conveniently located.  You are lucky at finding that.

Keep us posted,please,

John the curious

[OneLapper]

Are you kidding?  The owner of the shop and two tech said that turbo is FINE?

WRONG!  I own my own shop, and have my own techs.  Their tech made a mistake and compromised the integrity of the turbo.  Period.

Have the owner of that shop call me.  203.239.3376.  He needs to re-evaluate his moral and ethical position in the business world.

Mark

[Don4107]

I don't see this ending well for either party.  They are both rolling the dice.  Probably will be two losers.

If Ace is lucky he will end up stranded with a blown turbo.  If not he will end up with a trashed engine or a smoking hole where the bus used to be. 

Will the shop stand all the expenses?   Will they still be his buddies?   

At a minimum the turbo should be inspected by a quality turbo repair shop.

Anyone that has been in business for very long knows that stuff happens and you have to be prepared to bite the bullet and eat the repair.

Good luck, I fear you will need it.

[Jriddle]

Ace

You should do what makes you feel right. When I was in the Air force we left Tacoma WA. at night and headed to Panama. There were six C-141B aircraft in formation loaded with Army troops. When we were near Mount Rainer we heard a large bang. The flight crew and I passed it off for someone slamming the bathroom door. The next minute there was a large bang with a flash of light in the clouds. The flight engineer and I rushed to look at the engines. What we found was ICE building so fast that pieces were coming off the engines nucells and flying into the engines. The Ice caused compresser stalls. When we got to Panama 12 hours later we were told not to inspect the engines by the flight crews. The next day we flew to North Carolina. We inspected the engines and two out of the six planes needed engine changes. I know that you most likely will pull over to the side of the road when your compressor fails. My question is would you get into an airplane knowing about a chipped or bent compressor blade. Why take the chance.

John

[junkman42]

I want to add My two cents worth.  I worked in the gas turbine industry for many years.  The division of chromalloy american I worked for decided to open a commercial turbocharger shop.  We reground the shafts,straightend the shafts,welded the exhaust turbines and re contured them, and never repaired the compressor turbines because the forged aluminum does not weld well.  The balance was accomplished by grinding off a portion of the hub on the central portion not on the periphery.  The average diesel turbo does not turn the rpms stated in previous posts.  Most large turbos never reach 50K RPMS, smaller gas engine turbos can reach as much as 240K RPMS such as those used on motorcycles.  The advice from the shop may be well intended but is very unsound.  If the chip is in the exhaust side it should go, if it is on the compressor side I would expect in-balance because of bending as the aluminum compressor wheel is quite malleable.  Toss the turbo.  Ace, could You shoot Me an email as to the availability on the circuit breakers at Arcadia.  John