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

LinkBack Thread Tools Display Modes
Old 10-09-2003, 02:38 PM
Registered User
Join Date: Jul 2002
Posts: 197
420sel Timing Chain Symptoms

I have a 90 420sel with 110k miles. My MB mechanic has said to redo the timing chain between 125k & 150k. I am terrified that before I can have done (in about 2-3 weeks) I will have a disaster with mega bucks to rebuild the motor. Can anyone tell me the symptoms of a worn out timing chain, like the noises heard or the way the car drives, idles, etc. Any details you can give would be greatly appreciated. Thanks. Scott
Reply With Quote
Old 10-10-2003, 11:04 AM
Senior Member
Join Date: Jun 2001
Location: Northern Calif. (Fairfield Area)
Posts: 2,225
If you've kept up on the oil changes, you are still in the safe zone at that mileage. Usually an extremely stretched chain will rattle when the engine is started. I don't think I'd worry. Then again it's not my car. Just joking.


PS: Make sure they replace the plastic pieces that hold the oiler tubes in place. A good shop will do that automatically, but it never hurts to remind them.
Auto Zentral Ltd.
Reply With Quote
Old 10-10-2003, 12:16 PM
MrCjames's Avatar
California Dreaming
Join Date: Jun 2003
Location: SF Bay Area
Posts: 599
It seems the 420 engine was more prone to chain problems than other engines. The simplest way to put your mind at rest is to invest in a set of valve cover gaskets and visually inspect the chain and rails. Look cloesly at the left side inner chain rail as it has a tendency to split and or crack along the securing pin bore.

An ounce of prevention.........yadi, yadi
Reply With Quote


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

All times are GMT -4. The time now is 05:55 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