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
  #16  
Old 02-18-2003, 05:19 PM
190dee's Avatar
Registered User
 
Join Date: Dec 2001
Location: Finland
Posts: 160
Thumbs up Thanks alot, thomaspin.

From this post I actually learned how to measure stretch. Until know I thought I needed some kind of measure tool to do it. I do feel kind of stupid now!

Thanks for all the time you spent on doing the writeup!
__________________
'87 MBenz 190E 2,3 8vlv
Reply With Quote
  #17  
Old 02-18-2003, 05:34 PM
Thomaspin's Avatar
pindelski.com
 
Join Date: Jun 2001
Location: CA
Posts: 531
Emmydotnet

1 - I replaced the 6 pins holding the three flat rails; the seventh is a large, loose fitting pin at the base of the curved tensioner rail and is easily removed once the cover bolts is removed. As mine was not corroded, I did not replace it.

2 - The pin puller works because you are screwing a bolt into the rail against a fixed collar (I used a socket). As the bolt enters the pin (which has a female thread) it eventually abuts the collar and wants to cease going in any further. You keep turning it (some force required) and as the bolt cannot compress the massive socket, the pivot pin is subjected to a pulling force to which it yields by exiting the engine cover, entering the socket (make sure the socket orifice is large enough to accept the pin). The key is that the bolt head must contact the base of the socket before it reaches the base of the pivot pin thread, or you will just be forcing it into the pivot pin without generating any pulling force. You can only generate pulling force on the pin when the bolt head contacts the socket base before bottoming in the pin.

A related problem is that some of the pins are very close to webbing on the engine cover, preventing your socket from mating at right angles with the engine cover. I used (but did not illustrate) washers to pack that side of the socket not in contact with the engine cover. A better approach is to grind off part of your socket head to a depth of 4mm or so, to permit a flush fit.

3 - If you are also replacing the tensioner because the old one is weak, it may be a little easier to replace the rails with the old tensioner in place. As regards the chain/rails order, I can't think it makes any difference. Note that I changed the rails and tensioner first, thus allowing me to determine whether the chain needed to be changed. Once the new rails and tensioner are in, the major sources of out-of-time should be wear in the chain ('stretch') and the toothed gear wheels on which it runs.

I ended up replacing the chain on the 380, but not on the 560. If it ain't broke, dont fix it....
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 04:59 PM.


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