Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-02-2003, 02:13 AM
Registered User
 
Join Date: Mar 2003
Location: Houston, Texas USA
Posts: 59
Diesel Smoke

I know that it is normal for a diesel engine to smoke, but what color should the smoke be? Normally my 1984 300SD produces black soot when under rapid acceleration, but recently I have noticed white smoke when it first starts up. Is this normal? It does not use oil between oil changes. jacob wissler jr http://www.jacobwissler.com
Reply With Quote
  #2  
Old 05-02-2003, 09:06 AM
cmichalik
Guest
 
Posts: n/a
Hope this helps you.

White smoke:

Caused by unburned fuel passing through the engine. Some white smoke is normal on cold start-ups. Excessive white smoke could be an indication of inoperative glow plugs, loose injectors, low compression from worn rings or bent connecting rods, or coolant leak into the cylinders--head gasket or injector well sleeves.


Black smoke:

Caused by excessive fuel for the amount of air drawn into the cylinders. Some black smoke on hard accelerate or at higher altitudes is normal. Excessive black smoke could result from restricted intake or exhaust, inoperative leaking or weak turbo, intake hose(s) leaks, leaking or worn injectors, fuel return or supply restriction, stuck Exhaust Back Pressure Regulator valve or solenoid.


Blue or blue/white smoke:

Caused by insufficient fuel or oil consumption. Normal when engine is cold or idling for extended periods. Excessive smoke could be caused by air in the fuel, contaminated fuel, loose or plugged injectors, worn or leaking injector o-rings, thermostat stuck open, oil consumption, or plugged crankcase depression regulator valve.

Do a search on Diesel smoke color on tis site on the net and on other diesel sites and you should get some good reading concerning your question. Another diesel site that I personally frequent is www.thedieselstop.com . It's a Ford site, but there are alot of Good guys over there that are very knowledgeable and willing to help you. Also, the site has a big presents in Houston.

By-the-way. I'm on the south side of town. Where are you?
Reply With Quote
  #3  
Old 05-02-2003, 11:10 AM
Registered User
 
Join Date: Mar 2003
Location: Houston, Texas USA
Posts: 59
My Reply

I am not sure how to reply directly to you, so I will post my reply here. Thanks for all of the very good information. I live and work downtown.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 03:47 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page