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#1
11-27-2007, 01:57 PM
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Turbo vane damage
Searching the diesel forum for a possible answer (using the correct terminology and spelling really helps), resulted in no answer at all.
I happened to inspect the inlet vanes on my turbo and noticed several vanes that are chewed up on the edges. Obviously something had gotten in there. Anything to worry about? (I normally don't worry about the turbo. These are very hardy engine items and stand up to lots of miles.....just not mechanical abuse)
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84 300DT Puke Yellow. Totalled after 438,000 84 300DT Orient Red. 169,000 (actual mileage may vary) 2002 Explorer EB (wife's) 
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#2
11-27-2007, 02:00 PM
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As far as I know this will throw off the balance of the impeller. Likely the bearings will fail prematurely. I think you can get just the insert, but I don't know too much about the 617 engine.
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Bill Backyard Shadetree Mechanic, 30 years running.  1987 300TD 1988 300E (sold, sniff) 1999 S320 1981 Volkswagen Rabbit Truck (Diesel) 2001 Ford Expedition 1988 Suzuki Samurai On my list to buy: R129, for me, and a R107 for my wife.
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#3
11-27-2007, 02:07 PM
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If there is any physical damage at all to the turbo's wheel the turbo is junk. Time to replace it and fix what caused the damage in the first place. The turbo is as perfectly balanced as humans can balance an object. It spins up to 120,000rpm so any damage is going to cause an imbalance, wear out the bearings, cause the compressor to wear on the housing and send metal dust into the engine.
Check the air filter for tears and proper seating, u-tube seals for tears and the u-tube for cracks.
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#4
11-27-2007, 02:09 PM
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Quote:
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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? As long as they would add one additional commandment for you to keep thy religion to thyself. George Carlin (Wonder where he is now..) 1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won. pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt.
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#5
11-27-2007, 02:16 PM
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Right. At best the wheel, housing and bearings only need to be replaced. Best bet is just to swap it for a good used turbo for much less than it would cost to replace the wheel or rebuild the entire turbo.
Look around, good used ones can easily be found for under $100. if they charge more than that, its either been rebuilt or they are trying to steal your money.
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