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#1
10-23-2002, 09:55 PM
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Is my turbo telling me something?
I've just recently started hearing a pronounced high pitch whine coming from my turbo charger. Now, I've always been able to hear it a little but never like this.
Just wondering if I am hearing the begining of it's death wail 
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Joe ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1980 300SD - 495k miles - 'The Ambassador' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Former Family Members 95 C280 73 280SEL 90 300D 87 300SDL (X2) 86 560SEL 84 300D 80 300SD 
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#2
10-24-2002, 07:02 AM
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I'll be surprised if it is the turbo. If it were lack of lubrication it will not run for long. May just be a leak from the bypass or even from one of the vacuum lines around the turbo. Try an experiment - put a bb in the vacuum line going to the bypass and the egr valve and see if the noise continues.
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Jim
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#3
10-24-2002, 07:46 AM
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Hey Jim,
Thanks for the feedback. I'll take a close look at the vac lines. A bb huh? I'll try that if I don't find any leaks. Joe
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Joe ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1980 300SD - 495k miles - 'The Ambassador' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Former Family Members 95 C280 73 280SEL 90 300D 87 300SDL (X2) 86 560SEL 84 300D 80 300SD
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#4
10-24-2002, 08:44 AM
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engawork offers good advice, Also check the seals that are on the connecting tube from the oil pan to the turbo. I have only seen one of these things go out in 1000's. Maybe she is just getting happier with older age...
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Brandon 2008 S550 1957 Dodge D100 1967 VW Microbus 21 Window 2001 Suburban 2004 Beach cruiser bicycle -----------------GO DUKE!----------------- "It cannot be emphasized too strongly or too often that this great nation was founded not by religionists, but by Christians; not on religion, but on the Gospel of Jesus Christ. For that reason alone, people of other faiths have been afforded freedom of worship here." Patrick Henry 1776
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#5
10-24-2002, 09:17 PM
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Check to make sure the air inlet pipe is intact and connected. Ditto for the turbo to intake connection.
These turbos are very quiet -- usually can only hear them if something is off or leaking. However, they do scream when the bearings are going sometimes. Peter
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1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs!
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#6
10-25-2002, 12:07 AM
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Take off the U shaped intake hose to the turbo. Of course do this while the car is turned off. Check for any directional play in the compressor wheel of the turbo and make sure it spins freely.
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