Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Closed Thread
LinkBack Thread Tools Display Modes
Old 05-15-1999, 05:43 PM
Posts: n/a
Have an '87 190E 2.3, 80k miles with rough idle. Emission readings were 0.1% co., 450ppm hc.
Runs clean & smooth above 1000 rpm.
Can richen mixture to smooth idle, but hc. & co both raise considerably. Can not detect any air leaks. Compression test shows cyl.1-150psi, 2-125psi, 3-125psi, 4-150psi. I'm thinking head gasket, but there is no oil/coolant contamination,spark plugs all look the same and the car does idle very smooth if the mixture is richened. If the compression readings were normal, I'd look at the injectors, but cyls 2&3 look too low.
Any sugestions? Is this motor prone to valve problems @ 80k miles?
Old 05-15-1999, 08:24 PM
Posts: n/a
Early 102 motors were prone to valve guide wear, if the cylinder head comes off make sure to have the valves removed & guides checked for wear. Low compression=high hydrocarbons.
Closed Thread


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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
190E 2.3 Idle Control Valve Doug McCutchan Tech Help 2 01-03-2002 08:45 PM
1991 190E 2.6 Consistent rough idle brookspw Tech Help 3 12-30-2001 11:30 PM
m103 190e 2.6 rough idle, oil loss plato Tech Help 2 03-17-2001 12:14 AM
Rough warmup during cold engine - 190E 2.3 agupta Tech Help 3 11-02-2000 02:32 PM
190e 2.3 16v engine shaking at idle (HELP) Chris Andrew Tech Help 1 08-16-1999 09:56 PM

All times are GMT -4. The time now is 09:31 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, 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