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 > Diesel Discussion

LinkBack Thread Tools Display Modes
Old 07-13-2015, 10:55 AM
Registered User
Join Date: Mar 2009
Location: San Diego
Posts: 3,375
Question OM603 engine head and cam towers/brackets

2 questions for the head experts.

1) I am just wondering whether the head and the cam towers/brackets come as a matching set. I find the camshaft BINDs if I swap the spare cam towers to the old head.

2) Also why the cam towers are numbered from 1 to 7. Is the order important and why?

Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details.

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.
Reply With Quote
Old 07-13-2015, 11:23 AM
Jeremy5848's Avatar
Registered Biodiesel User
Join Date: Mar 2006
Location: Sonoma Wine Country
Posts: 8,401
I seem to remember reading somewhere that the cam towers are milled and/or ground to spec as a set and mounted on the head that they will spend their "life." Sorry, no specific reference, just an old memory.

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
Reply With Quote
Old 07-13-2015, 01:56 PM
Join Date: Jun 2015
Posts: 563
The 603/2/1 and newer alloy cylinder heads have their "cam towers" cast integral to the cylinder head casting. The caps are separate. The caps are numbered to allow them to be replaced back into their original position.

On these heads the cam bearings are "line bored" to tolerance, switching caps or swapping other caps into place of the originals will usually cause a mis-fitting like you are describing. There are repair sized cams that are used after re-lineboring the cam bearings and their caps to the next larger repair size.

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

All times are GMT -4. The time now is 09:23 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, 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