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 > Tech Help

LinkBack Thread Tools Display Modes
Old 07-01-2005, 10:21 PM
Registered User
Join Date: Jun 2005
Posts: 24
M104 Valve Cover Tightening

Hello all. I recently replaced the valve cover gasket on my 1990 300SL and got a few leak spots on the valve cover. Does anyone have a diagram of the bolt tightening sequence and the corresponding torque? I've tried to search here but couldn't find anything on this topic. Thanks.
Reply With Quote
Old 07-01-2005, 11:20 PM
Registered User
Join Date: Aug 2003
Location: Phoenix
Posts: 3,726
Haynes just says tighten the "progressively" to the specified torque - which is just 7 ft. lbs. Are you sure you got the contact faces clean? Seems unlikely you undertorqued them at just 7 lbs.
Reply With Quote
Old 07-02-2005, 05:55 PM
Registered User
Join Date: Mar 2004
Location: Flower Mound, Texas
Posts: 140
R1990 - I had a fit with this too. Ended up needing the rubber grommets for the valve cover bolts. You won't believe how much your originals have compressed over the years. I probably pulled the valve cover two or three times before I figured that out. I want to say I also used a bit of MB sealant in the valve cover channel before attaching the gasket --- just a tad. No leaks since. Good luck --- oh yes, just tighten with a 1/4" nut driver by hand. Doesn't take much torque. Just go in two or three stages and do in any crisscross pattern. 71Rcode
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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
98 E320 valve cover oil leak ssks Tech Help 1 12-05-2003 11:24 PM
1988 560 SEL Valve Cover Removal Timberock Tech Help 4 08-03-2003 10:18 AM
Torque Specs: Valve Cover Plate Bolts--W202 MBDad777 Tech Help 0 04-26-2003 03:30 PM
94 e320 valve cover gasket change observations neumann Tech Help 0 01-05-2003 10:53 PM
Valve cover exhaust hose "gooped"? Rainman Tech Help 1 11-26-2001 08:48 PM

All times are GMT -4. The time now is 05:28 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