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#1
06-21-2011, 10:13 PM
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Is a worn dipstick o-ring like a vacuum leak?
Last time I checked the oil I noticed the dipstick in this '95 E320 didn't fit snug in the tube. Would that feel the same as a vacuum leak? i.e. not as smooth idle as I'd expect some times.
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#2
06-21-2011, 10:43 PM
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Nice Try ! [Gloming onto that Thought process,It wopuld be the exact opposite.]
(DISCLAIMER: I know [And want to know even less] NOTHING about Gasoline/Petrol/Benzine Mercedes.)
The Engine Oil (Sump) Dipstick has a nice little rubber "O" ring to seal the Tube AGAINST acquiring and Dust, DIRT, or other Contamination. If the "O" ring is Old,Dry and Brittle and has Shrunk from it's original Thickness; it MAY allow SOME Crankcase Gasses and Pressure to vent through the no longer sealed "DipStick" tube. [REMEMBER the DISCLAIMER ? Mercedes COULD have some Extreme Walter Mitty device that senses loss of "Blowby" and corrects for it through Electronic Wizardry (?)] [Although, WHY they would do such a thing would not be able to be explainable in the Physical Universe we inhabit!]
__________________
'84 300SD sold 124.128
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#4
06-21-2011, 10:50 PM
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Yeah,So... (Application, Here?)
BMW Makes wunnerful:
Marine Engines Aero Engines Motorcycles The 4 wheel conveyances they claim are automobiles are Excrement! [Except the Mini , of course]
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'84 300SD sold 124.128
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#5
06-21-2011, 10:53 PM
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How Much can the "O" RIng cost @ a Stealership?
YOU have just volunteered as an Official Testbed Mercedes Owner!
'Run ovah Thear and pick up a New "o" ring and see if your idle smooths out.
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'84 300SD sold 124.128
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#7
06-22-2011, 03:48 PM
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won't make a difference other than making the dipstick a little harder to get out.
__________________
 88 300e 89 300e 93 400e 93 500e 77 308 GTB
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#8
06-22-2011, 04:15 PM
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No vac in underside of engine.Theres wind from crankshaft and blow by if pistons are worn.I replaced my dipstick o ring as full pedal would blow oil over motor.
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1999 w140, quit voting to old, and to old to fight, a god damned veteran
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#9
06-23-2011, 01:26 PM
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No, it's for sure a vacuum leak and you need to fix it.
I've seen these motors simply stop running when the dipstick is pulled.
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Kent Christensen Albuquerque '07 GL320CDI, '10 CL550. '01 Porsche Boxster Two BMW motorcycles
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#10
06-23-2011, 05:20 PM
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Quote:
Quote:
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#11
06-23-2011, 10:18 PM
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Quote:
  no blowby? Leave it alone. Check elsewhere.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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