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 09-23-2009, 01:29 PM
Registered User
 
Join Date: Sep 2009
Location: Graham, Wa
Posts: 9
83 300sd ip??

For all of you who answered by last post about the lack of power with the 300sd and the possiblity of rebuilding the IP thankyou. I have a bit more information that may help with trouble shooting. According to the owner the car does not start to loose power until it gets up to full operating temperature. It runs fine when cold and has full power. The power loss is described as not being able to pull hills and 70 mph, but instead 45 mph. So the car still runs fine on the flats and starts Ok. Any input from anyone? What about a pluged turbo, or failing turbo.(anyway to check). Thanks Kevin
Reply With Quote
  #2  
Old 09-23-2009, 04:14 PM
Diesel911's Avatar
Registered User
 
Join Date: Sep 2007
Location: Long Beach,CA
Posts: 23,333
Loss of power when the Engine is hot is one of the symptoms of Valve Clearances that are too tight.

If not the I above I would be looking for a problem that can happen over the period of time that it takes for the Engine to warm up. Like, if the Fuel Tank Vent was restricted and it was taking time for the Engine to warm up for the negative pressure in the tank to have an effect.

Try driving without the Fuel Tank Cap on as this would bypass the Tank Vent.

I am inclined to thank that if the Turbo was not working it would also not work when the Engine was cold.

I do not know if your year and model has one but the EGR has a Thermo Vauccum Switch. If the EGR was getting Vacuum all of the time due to the Termo Vacuum Switch a worn out little plastic valves on top of the Valve cover it could be getting vacuum when it is not supposed to. Or, just plain sticking in the open position after the Thermo Vacuum Switch opens and gives it Vacuum when the Engine is hot.

Try disconnectiong and plugging the Vacuum Hose to the EGR so it will not be able to open.
__________________
84 300D, 82 Volvo 244Gl Diesel

Last edited by Diesel911; 09-23-2009 at 04:21 PM.
Reply With Quote
  #3  
Old 09-23-2009, 04:23 PM
Diesel911's Avatar
Registered User
 
Join Date: Sep 2007
Location: Long Beach,CA
Posts: 23,333
I is less likely but Exhaust Back Pressure from a collasped or blocked Resonator or Muffler. Less likely because I think the restriction would still be there if the Engine was cold.
__________________
84 300D, 82 Volvo 244Gl Diesel
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 08:03 PM.


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