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-Benz Forum > Mercedes-Benz Tech Information and Support > ML, GL, G-Wagen, R-Class, Unimog, Sprinter

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-12-2015, 05:51 PM
Registered User
 
Join Date: Jun 2008
Posts: 46
'99 Ml320 driveshaft clunk replace motor mount

The clunk from the rear on acceleration turned out to be a drivers' side motor mount. I elected not to pay $500 to replace both but to do the bad one myself. At O'Reilly's, an Anchor mount (Chinese) cost $35. Took a few hours but I never had to loosen the passenger side. Drivers' side is in tension upon acceleration while passengers' side is compressed and should never fail. Shop refused to split the $500.

Clean engine top and bottom at carwash: remove clipped on airbox top; snap off motor cover to better observe potential stretching or interference during jacking; remove 2 bolts and U-nuts holding bottom of fan shroud; LF wheel off; jackstands; pull wheel liner; remove heat shield (3 10mm nuts); unbolt top motor mount nut (18mm) and remove heat shield; securely locate hydraulic jack under LF engine corner with 4"x4"x12" vertical push block to lift front corner of crankpan (I clamped it to anti-sway bar with a couple carpenters' clamps to make sure it stayed in place; jack till the top of the mount retention bolt clears the bottom of the engine bracket; slip a stable length of 4x4 betwen the anti-sway bar and the crankpan to protect your fingers if your engine jack system fails; remove bottom motor mount nuts (16mm/5/8") using a long extension; the back bolt takes a deep socket or short extension and then a universal ahead of the long extension; pull out the failed mount; grind 1/16th inch off the top bolt on the new mount for ease of fitment and install with "FRONT" embossment towards truck front; motor mount is not centered but fits in forward holes on frame bracket: put it all back together; and, no more clunk (which we all thought was a worn transfer case chain or failing differential.)

Note: jacking cannot overstretch the bolted down passengers' side as mounts have a built in stop (or your engine would have tried to exit your hood already!).

Last edited by Arminius; 02-12-2015 at 08:21 PM.
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 04:29 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page