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#1
08-21-2011, 08:09 PM
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constant white smoke issue.
The car is a 1976 w115 300D.
I have noticed that the smoke coming out of the tail pipe makes my hand feel slightly oily. Its not extremely thick smoke but i do feel confident with concluding that it is not water vapor. I did do a fuel cleaning operation similar to a "diesel purge" but with sea foam fuel injector cleaner. It didnt help much except with restoring a little power. I am not sure if i should be focusing on the injectors or the injection pump. Hopefully someone can help me pinpoint the issue.  Thanks in advanced.
__________________
1976 w115 300D 
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#2
08-21-2011, 09:40 PM
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Focus on your vacuum pump. Check the vent line that runs from your vacuum pump to either the air cleaner or intake manifold. I bet you'll find oil in it, meaning you have a ruptured vacuum pump diaphragm. Simple quick fix.
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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#3
08-21-2011, 11:16 PM
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Quote:
 , will do, but wouldn't i have no vacuum if that were so??
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1976 w115 300D
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#4
08-21-2011, 11:17 PM
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Quote:
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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#5
08-23-2011, 01:52 AM
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well the line coming from the intake to the vacuum pump was dry as a bone on the inside.
I had my brother slowly rev up the engine while i observed any changes in the smoke(only an increase in volume) and i noticed a whistling sound coming from the tail pipe. I know that can happen when gasses are pushed pass the exhaust valves. I think i will do a diesel purge again but with actual diesel purge and adjust the valves(which i have been meaning to do). I will post the results. 
__________________
1976 w115 300D
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