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 > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-07-2002, 10:24 AM
Registered User
 
Join Date: Feb 2002
Location: Kingston NY
Posts: 114
Pinging Engine

My engine (1985 190e 2.3L 8V) pings under any load (taking off from a stop sign even). I know that it can be related to timing or crappy gas. I have filled the car with Hi-test and addded 2 cans of techron (to clean things out). I have also checked the timing and it is correct (vacuum advance apears to be functioning fine). Any suggestions? Do I add octane booster?
Reply With Quote
  #2  
Old 10-07-2002, 01:54 PM
Registered User
 
Join Date: Jan 2002
Location: England
Posts: 1,841
Have you had the timing checked by a tech (or do you have the right equipment?) i.e. used a strobe at 3000rpm?

The timing can be adjusted by twisting the distributor - readjust it if necessary and make sure it is done up tight. Alternatively if you are cheap and don't want the car set up properly turn it yourself and do no measurements, .. I believe you want anti-clockwise (get confirmation) - just a few degrees should be enough, but turn it more if it's not.

Does it ping when the engine is cold?

later!
__________________
190E's:
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black 2nd owner
http://www.maylane.demon.co.uk/190esmall.jpghttp://www.maylane.demon.co.uk/190esmall2.jpg
Reply With Quote
  #3  
Old 10-07-2002, 04:15 PM
Registered User
 
Join Date: Feb 2002
Location: Kingston NY
Posts: 114
I live about 500 feet from a stop sign. I started the car and a few minutes (3 or 4) later found myself pulling away from that stop sign pinging like crazy! So I guess it pings when it is cold. I do have the proper equipment to tune it, I think. I have an adjustable strobe timing light (I can adjust the amount of advance or retard via knob). I hope it is good enough, it was about $100.
I also have a dwell/tach meter so I know where the RPM's are while I am under the hood. I have cleaned the timing pully and the pointer so they are easily visible.
I will certainly check it once again and make adjustments.

What about mixture? Will it ping of it is too lean? Will an out of adjustment valve make it ping? I do have a valve tapping on the intake of cylinder 1.
Reply With Quote
  #4  
Old 10-07-2002, 05:21 PM
Registered User
 
Join Date: Jan 2002
Location: England
Posts: 1,841
Not sure about valve adjustments, but it will ping if it's too lean. Make sure your amount of advance/retard matches the specified amount for your car.. not sure what that is though.
__________________
190E's:
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black 2nd owner
http://www.maylane.demon.co.uk/190esmall.jpghttp://www.maylane.demon.co.uk/190esmall2.jpg
Reply With Quote
  #5  
Old 10-08-2002, 08:17 AM
LarryBible
Guest
 
Posts: n/a
I'm not familiar with this particular car, but doesn't it have the K Jetronic as others of that era? If it does, part of that system is a knock sensor that prevents this from happening. If it is a K jetronic, there are two modules, a fuel injection control module, and an igniton control module. The knock sensor connects to the ignition control module and one of these units or the associated wiring is at fault.

Hope this is found to be helpful,
Reply With Quote
  #6  
Old 10-08-2002, 09:09 AM
1992300e
Guest
 
Posts: n/a
time for tune up

Previous post is more knowledgeable than I, would check those sensors.

On my Nissan, pinging is sign of time for tune up. Rotor, cap, plugs, and wires, along with adjusting timing with my timing light and distributor twist does the trick. I go through this ritual every 60,000 miles or so like clock work.

Hope this helps,
Joel
Reply With Quote
  #7  
Old 10-08-2002, 01:24 PM
Registered User
 
Join Date: Jan 2002
Location: England
Posts: 1,841
There's only a knock sensor on the 16v - I think the 8v's are KE-Jetronic... not definite, but even so I'm quite sure there's no knock sensor on the 2.0 and 2.3 8 valve engine.

later!
__________________
190E's:
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black 2nd owner
http://www.maylane.demon.co.uk/190esmall.jpghttp://www.maylane.demon.co.uk/190esmall2.jpg
Reply With Quote
  #8  
Old 10-09-2002, 09:33 AM
Registered User
 
Join Date: Feb 2002
Location: Kingston NY
Posts: 114
Yes, my 2.3 is a KE unit. I was unable to make any adjustments yesterday as I was tied up in NYC all day (oh joy). Will try to check everything tonight and post findings. By the way, the car has a new cap, rotor, plugs (Bosch Platinums... I know, I know.. I need copper). Timing was dead on.
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 08:37 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, 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