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Tractor Talk Discussion Forum

Turbo rebuild or replace ?

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Todd Smith

07-04-2004 05:54:18




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The turbo on my 2000 Ford F350 started making a strange sound yesterday. I plan on pulling it today.Any thoughts on either replacing it or having it rebuilt? Also what am I looking at on exspense? Thanks in advance.




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leland

07-05-2004 20:22:05




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 Re: Turbo rebuild or replace ? in reply to Todd Smith, 07-04-2004 05:54:18  
just take it in and exchange it for one on shelf . saw a few engines after people tried to rebuild themat home not pretty after impeller explodes and gets sucked thru motor . call area diesel in carlinville ill they have one or a dozen on shelf and they have a WARRANTY just in case something lets go



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Mark - IN.

07-05-2004 13:19:25




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 Re: Turbo rebuild or replace ? in reply to Todd Smith, 07-04-2004 05:54:18  
Did a phone repair for a place in Minooka, IL. a couple of years ago. Place is R&S Distributing. I'd never seen so many turbos in my life of all different sizes. Made conversation with the big boss, asked what they did. They rebuild for the big name companies. I asked if I were looking for a turbo, could I but direct, he said absolutely, although they don't mostly advertise to the public. No website listed in the yellows, and are closed for the holidays, re-open tomorrow 8AM CST. 815/467-9545. If knew a/the website, would post.

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mike

07-05-2004 09:19:38




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 Re: Turbo rebuild or replace ? in reply to Todd Smith, 07-04-2004 05:54:18  
paid 600 for a buddy to replace turbo on my Cummins w/ a remanufactured air research (?) turbo. Everyone else I called wanted 700+just to sell me the turbo. That turbo lasted about a year(10000 miles) and lost bearings again. Traded the truck that time



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Wayne

07-04-2004 18:32:27




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 Re: Turbo rebuild or replace ? in reply to Todd Smith, 07-04-2004 05:54:18  
If it were mine I would find someone competent that has the proper tooling to rebuild it for me. Rebuilding one isn't that hard to do if you have the proper tools but it's not having the tools that can bite you in the end and leave you stranded as a result. The main thing is that a turbo at full speed can turn in the 10,000 RPM range so you have to insure everything is balanced when you put it back together otherwise it will self destruct. Being on a pickup engine where it is subjected to alot more starting and stopping than an average tractor engine would be I'd have whoever rebuilds it check to see what kind of bushings are in it and if they are bronze see if they can be upgraded to something a little tougher like the ceramics. Sometimes this can be done depending on who the turbo manufacturer is. Again with this turbo being in your pickup, always remember when you pull into a parking lot, etc to give the engine time to idle down and at least a few extra seconds for the turbo to spool down also before shutting it off. In this application these turbos see alot of start and stop cycles but the worst thing for them above all is a high speed shutdown where the impeller is still spinning at speed when the oil pressure goes to zero. Over the years I've seen and heard about more turbos being killed that way than any other. If your in the NC area there is a place down toward Gastonia called Complete Turbo that does excellent work.

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Kelly MT

07-04-2004 12:12:04




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 Re: Turbo rebuild or replace ? in reply to Todd Smith, 07-04-2004 05:54:18  
I have had turbos rebuilt and they work fine and saved a pile of money. Just take it to a shop that specilaizes in turbos. But check everything close first like the other fella said. My 3406 Cat lost 6 PSI of boost and I could really hear it whine when two exhaust manifold bolts broke and blew the gaskets out. Also I've had dirty air filters create a odd sound I thought was the turbo. PK



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txblu

07-04-2004 06:48:08




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 Re: Turbo rebuild or replace ? in reply to Todd Smith, 07-04-2004 05:54:18  
What kind of strange noise? I ran an OTR rock bucket for awhile and had a 400 HP Cummins. Turbo developed this squeal that followed the rpm's up and down.

Spent $700 and a day down time (another several hundred $) and lo and behold the noise was still there.

Seems that if you get a pinhole (all it takes) in your high pressure line to the engine inlet, it will squeal.

So before you dump the life's savigs, might THOROUGHLY check all connections and all tubes and hoses (if any) for tight joints and no holes.

The tubo is a very simplistic turbine wheel with ceramic bearings. It has one moving part and it is tough tough tough. Nothing much to break and the ceramic seals just don't wear out.

Mark

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Burrhead

07-04-2004 13:27:12




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 Re: Re: Turbo rebuild or replace ? in reply to txblu, 07-04-2004 06:48:08  
Mark that's true the seals don't go bad too often.

The part that plays out with Cummins is the brass bushings they use for bearings.

I get a rebuild kit for $40 and rebuild my own. That beats the heck out of $400 for a rebuilt turbo from the parts store.



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txblu

07-06-2004 05:43:37




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 Re: Re: Re: Turbo rebuild or replace ? in reply to Burrhead, 07-04-2004 13:27:12  
Boy, I'll say. Great!

Mark



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Todd in IN.

07-04-2004 12:24:05




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 Re: Re: Turbo rebuild or replace ? in reply to txblu, 07-04-2004 06:48:08  
Mark thanks for the reply. I was really acellerating hard when I heard a sound that sounded like a hydralic hose blowing then this was followed by a whinning sound. After removing the air intake from the filter box I could turn the turbine wheel with my fingers and noticed that the turbine blades were slightly touching the housing as they turned. Not sure but I assume that this means the bearing or seat must be bad. I shut it down the minute I heard the noise and now I think I'm glad I did. I'm getting ready to go to the shop now to finish removing it. Thanks again.

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txblu

07-06-2004 05:41:55




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 Re: Re: Re: Turbo rebuild or replace ? in reply to Todd in IN., 07-04-2004 12:24:05  
Looks like you had a bonafide failure. Hope you can fix it without investing your life's savings. Course, I'll admit, I was at the heavy truck dealer when mine was worked on and they price things like car dealers.(No rub, just fact)

Mark



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brtex

07-04-2004 20:21:09




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 Re: Re: Re: Turbo rebuild or replace ? in reply to Todd in IN., 07-04-2004 12:24:05  
proper way to check the turbo bearing is to remove inlet and outlet and check the clearance with a dial indicator.dont know what the specs are on the ih motor you have or who makes the turbo.if the fins are hitting the casting i would not run it .close to the point of deatruction.ive pulled a lot of heads toget rid of turbo parts. turbos are not hard to rebuild ,but you do need the right tools and a very good manual.if yyou do have it rebuilt make sure that they will give you warrany on it.good luck

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