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  #1  
Old 01-23-2004, 12:21 PM
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Join Date: Aug 2003
Location: Berkeley
Posts: 19
Oil caught in muffler from bad turbo

I recently had a turbo go bad in my 84' 300TD and have replaced the turbo. When the turbo went bad, it really went bad: it introduced a lot of liquid oil into the exhaust system, enough to cause liquid oil to come out the tailpipe. I have since replaced the turbo and a small amount of liquid oil is still geting blown out the tailpipe and occasional bursts of blueish oil smoke clouds are coming out after 150 or so miles. All of these symptoms seem to be getting better not worse...I tried disconnecting the exhaust at the point before the 2 mufflers and removed the assembly to try and drain it, to my dissapointment no oil came out when I held it upside down, but I also was pleased to see no liquid oil remaining at this point upstream from the mufflers. Now looking back, this was probably not the best approach to try and drain the mufflers of all the collected oil as there are many passage ways and "nooks and crannies" that block the oil from freely flowing out the exit. I would like to speed up the process of clearing the mufflers out and could use some input. Any ideas here??? Some ideas I have are:

1) Disconnect the exhaust again and run hot soapy water through the exhaust to flush out as much oil as possible. Granted this fills up the exhaust with water but I figure this will evaporate much quicker than oil!

2) Drill 2 or 3 small 1/8" holes each muffler and hope that the oil drains out the bottom. Plug the holes with JB weld

3) Wait for the exhaust to clear itself and don't touch it

4) Replace the two mufflers entirely.

Thanks for reading and please let me know.

Cheers,
Billy

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  #2  
Old 01-23-2004, 12:53 PM
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Join Date: Jul 2001
Location: Woolwich, Maine
Posts: 3,598
billy_witort,

I would go with option #3 and if that proves to unnerving for you, I would go with #4. You will have to heat the entire muffler sysem up to a temperature that boils off the oil, so it may take a few long highway drives with lots of WOT runs. I would not clean the pipes with solvents (too dangerous) or use soap and water, nor would I drill holes. Soap and water is likely to be ineffective and make big mess to clean up, while the holes will ruin the functionality of the system (you will get lots of unwanted noise). Good luck, Jim
__________________
Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)
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  #3  
Old 01-23-2004, 02:11 PM
ForcedInduction
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Option #2 might work. After it's drained, get a small, flat piece of steel and bond it to the muffler with J-B weld.

#3 would also be fine. Don't worry about it. You will get some blue smoke every now and then, but it's the cleanest option. The worst that could happen is if someone complains to the local auth. about the smoke (Assuming you have emmisions and vehicle inspections)

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