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 12-20-2001, 01:22 AM
Registered User
Join Date: Oct 2000
Location: Oakland, CA USA
Posts: 221
Timing chain??

Hi...I know that this subject has been covered over and over, but I didn't find anything specific to my problem with a search, so I'll post the question.
It's pretty simple, about 4 out of 5 cold mornings (well, California cold) when I start my engine (1987 560SEL) to go to work I can hear a ticking noise from the moment I release the key for about 5 or 6 seconds. After that it fades away completely. I left my car overnight at the shop so that my mechanic could hear it (it will only happen the first time, then you have to wait until the next morning to hear it again). He said that it seemed too quiet to be the chain (ticking, not metallic clicking), but too loud to be lifters. The car has 177,000 miles on it, and the previous owner said that the original owner had the chain replaced at 145,000, but I have no way to verify that. I realize that it's impossible to determine what the noise is without hearing it for yourself, but I thought someone might have experienced this before.
Reply With Quote
Old 12-20-2001, 09:45 AM
Robert Boyer
Posts: n/a

We 2nd or 3rd owners of cars we can't verify prior chain replacement on are all in the same boat. I got mine at 149K and now it has 170 K.

I think we are both on borrowed time.

Consider it a necessary expense to do the tming chain by an experienced independent. Even if its not necessary.
Reply With Quote
Old 12-20-2001, 10:03 AM
Posts: n/a

Hard to tell w/o hearing the clicking, but your description certainly sounds like it could be a bad lifter --- clicks until enough oil pressure has built up and the noise goes away.

You might want to get a second opinion from another mechanic. I

The chain itself is not neccesarily the main issue for concern, but the upper chain guide rails. They are made of plastic and become brittle over time. Since you don't know the oil change history, wouldn't be a bad idea to pull the valve covers and inspect them.
Reply With Quote
Old 01-11-2002, 10:18 PM
Posts: n/a
It should be timing chain tensioner

I dont have a V8 engine, But in 190E's, it has always been timing chain tensioners. It relaxes over night 'cools down' and when you cold start the car in the morning, it will take up to 7 seconds for it to go back to its normal tension. Meanwhile your chain is flopping around "the ratt-ratt-ratt noise" and one day it could break leaving you with a dead engine. I would replace the chain and the timing chain as well as the rails!
Reply With Quote
Old 01-13-2002, 09:34 AM
mplafleur's Avatar
User Friendly
Join Date: Sep 2001
Location: Lathrup Village, Michigan
Posts: 2,939
I'm inclined to believe it is a lifter. The 190's have a spring held ratchet as a tensioner, not the oil pressure held tensioner. Once the chain stretches enough for the spring to push out the tensioner out another click, it will ratchet out and stay. It cannot go back in. I fail to see how the spring tensioner can cause the noise mentioned while oil pressure is obtained.

BTW. Mine does the same. How can I determine which lifter is faulty?????
Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Just how often should a timing chain be replaced? Greg in Oz Tech Help 16 07-25-2005 05:02 PM
Info on how to replace timing chain tensioner & upper chain guide bodyart27 Diesel Discussion 11 10-15-2003 04:53 PM
OM603 timing chain installation report gsxr Diesel Discussion 3 08-15-2003 11:00 AM
W126 Timing chain help BenzMatic Tech Help 5 08-03-2003 05:14 AM

All times are GMT -4. The time now is 08:02 AM.

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