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  #16  
Old 03-10-2009, 09:56 AM
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My two MBs smell much different.

The 84 smells like a tractor or Bobcat's exhaust to my nose.

The 87 especially after the cat was added in hardly smells like a diesel. Seems like some of the newer quiet diesels with cats also have this smell. Maybe the new Dodge trucks and Jeep liberty.

It's a weird smell. I'm thinking it's because of the cat but I could be wrong.
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  #17  
Old 03-10-2009, 10:07 AM
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Interesting about the different smells of different engines. My sense of smell has really been desenstized over the years.

When I first started driving a diesel, I recall with even a small fuel leak that I could smell, I would feel a constriction around my head and a small tingling numbness on the tip of my tongue. I don't get that anymore from over dosing over the years.
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  #18  
Old 03-10-2009, 10:27 AM
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Quote:
Originally Posted by Fulcrum525 View Post
Sounds like your sinuses acting up again
Actually it probably speaks more to the effects of inhaling exhaust fumes all these years.
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  #19  
Old 03-10-2009, 10:32 AM
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I don't mind the smell of diesel exhuast. What I do mind is when the boat next to me fires up its tired pair of 2 stroke Detroits...all of a sudden an oily fog rolls in.
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  #20  
Old 03-10-2009, 10:47 AM
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Some diesel fumes smells ok, like the older diesels, now the newer diesel fumes smells like bleach to me and that just ruins my day by giving me a headache.
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  #21  
Old 03-10-2009, 11:01 AM
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Quote:
Originally Posted by Hatterasguy View Post
I don't mind the smell of diesel exhuast. What I do mind is when the boat next to me fires up its tired pair of 2 stroke Detroits...all of a sudden an oily fog rolls in.
Yeah but the sound of a two stroke detroit is awesome!
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  #22  
Old 03-10-2009, 11:13 AM
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Quote:
Originally Posted by Basstrip View Post
by the way what is the job of the EGR.
The function of the EGR (Exhaust Gas Recirculation) system is to reduce the emissions of oxides of nitrogen (NOx). NOx is a strong lung irritant, a major constituent of "smog," and a contributor to acid rain. NOx is formed during combustion when temperatures and pressures are high enough to cause a chemical reaction between the oxygen and nitrogen that are present in the combustion air. EGR reduces combustion temperature and pressure by replacing some of the oxygen-rich air with a more inert gas: exhaust gas. This slows and cools the combustion process, thus reducing NOx formation. EGR reduces engine efficiency slightly and if there is too much EGR it can affect driveability, especially in gasoline engines. Many people disconnect their EGR systems. I choose to leave mine operational because I like to minimize my personal contribution to the damage of the environment within practical limits.
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  #23  
Old 03-10-2009, 11:54 AM
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Quote:
Originally Posted by SwampYankee View Post
Diesel and pre-emissions gasoline exhaust. My wife complains every time we're following a classic car about the stink and I'm practically sticking my head out the window for a good whiff.

I'm with you!
I love the smell of a non-cat gasser almost as much as I do my oil burners. I especially love the SDL on B100 - smells like linseed oil on fine wood!

Tell ya what Swamp, I'll stick a jug under the tailpipe of my Jeep and send ya some good old fashioned, non-cat inline six, carburetored, breaker point fired, kinda rich exhaust!
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  #24  
Old 03-10-2009, 12:22 PM
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I miss the smell of JP-4, 5 or 8. Oh the days of aviation....
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  #25  
Old 03-10-2009, 12:33 PM
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The cummins 5.9L on B99.9 is much more pleasant than petrodiesel....at a distance.

OM617 on B99.9 is sometimes almost raw smelling when on a cold startup.
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  #26  
Old 03-10-2009, 12:41 PM
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Quote:
Originally Posted by pawoSD View Post
Yeah but the sound of a two stroke detroit is awesome!
Louder than I prefer, its annoying trying to have a conversation on the flybridge. I prefer the modern quiter electronic diesels.


I find it embarresing to fire up smokey diesels down a quite marina, or with people on board. On the Rybovich we would light them off about an hour before everyone shows up, and let them smoke as we went in the saloon or wiped dew off the bow. After 15 minutes they would have a little heat in them so when you start them up again the smoke isn't that bad. Than when people show up cast off the lines, light them off and go to keep the smoke at bay.
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  #27  
Old 03-10-2009, 12:49 PM
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my 300sd was very tolerable. I have been behind some vehicles and I cant breathe. I have had to seriously race in front of them or drop way back because it was so intollerable. I believe most of these vehicles were fords. I still like them better than the dodges because once I was sitting at a light next to a dodge and when the light turned green, he punched it and smoked the crap out of me. My window was open and everything. What an A-hole.
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  #28  
Old 03-10-2009, 12:50 PM
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Quote:
Originally Posted by pawoSD View Post
Yeah but the sound of a two stroke detroit is awesome!
Not when you're sandwiched between them in the engine room. The Detroits aboard 85ft R/V Yellowfin were mostly smoke free even when cold. It did have a nice whirring of the air starters and water muffled growl at startup topside.
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  #29  
Old 03-10-2009, 01:17 PM
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My '98 and the GF's Golf both have cats and the smell is quite "un-Diesel" like. The truck doesn't smell too bad and I only really smell it if I back up through the exhaust.

I believe that when you're behind a vehicle and you get the "stinky Diesel" smell it's from reduced compression in an older engine. But that's just a theory.

If you're smelling exhaust in your Benz while driving, you have a leak somewhere under the hood. You should never smell it while driving forward.
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  #30  
Old 03-10-2009, 02:58 PM
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Quote:
Originally Posted by LUVMBDiesels View Post
I'm with you!
I love the smell of a non-cat gasser almost as much as I do my oil burners. I especially love the SDL on B100 - smells like linseed oil on fine wood!

Tell ya what Swamp, I'll stick a jug under the tailpipe of my Jeep and send ya some good old fashioned, non-cat inline six, carburetored, breaker point fired, kinda rich exhaust!
Send it my way!
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