Needed every 15000 miles.
FYI: for new members.
It is important, especially for winter starting!!!
If you DIY, do NOT mix up intake and exhaust valve positions while adjusting.
A hand drawn check box diagram to document each valve, intake and exhaust position, will save much confusion and effort.
The feeler gauge goes between the cam shaft and rocker arm, graphic drawing in post #22...
You will find the MB valve wrench set handy, or you can make your own...
Home Made Special Tools, This is where members can share how they made special tools
Home Made Special Tools, This is where members can share how they made special tools - PeachParts Mercedes ShopForum
Anyone willing to post an example of engine performance change bad too good adjustment, or your mistakes will be appreciated.
Thank you.
EDIT:
Some links that are on topic.
Easy valve adjustment
Easy valve adjustment - PeachParts Mercedes ShopForum
valve adjusting wrenches
valve adjusting wrenches - PeachParts Mercedes ShopForum
Adjusting valves on 617 ?
Adjusting valves on 617 ? - PeachParts Mercedes ShopForum
Valve Adjust Tools
Valve Adjust Tools - PeachParts Mercedes ShopForum
Valve Wrenches?
http://www.peachparts.com/shopforum/showthread.php?p=859756
Pictorial - Make valve adjustment wrenches
Pictorial - Make valve adjustment wrenches - PeachParts Mercedes ShopForum
Just adjusted the valves on my 300SD
Just adjusted the valves on my 300SD - PeachParts Mercedes ShopForum
http://www.startekinfo.de/etools/content/tool.jsp?toolno=615%20589%2000%2003%2000
Here is a nice DIY with pictures, but I disagree about using an offset key, IMO you are better served by rolling in a new timing chain.
http://mb.bolinko.org/15/warsztat-mainmenu-32/silnik-om617-mainmenu-75/62-engine-timing-valves/325-inspection-and-adjustment-of-camshaft-timing.html
http://www.peachparts.com/shopforum/diesel-discussion/306648-vlave-wrenches-617-sold-ebay-appear-new-manufacture-not-welded.html
:EDIT 2:
Members requested the following data and attached pictures be added to post #1 for easy access.
OM617.952
COLD adjustment:
Intake 0.10 MM
Exhaust 0.35 MM
Hot adjustment:
Intake 0.15 MM
Exhaust 0.40 MM
*******************
Stripped valve nuts are becoming more common.
http://www.peachparts.com/shopforum/diesel-discussion/347049-stripped-valve-nut.html
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__________________
ASE Master Mechanic
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Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
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Technical Quality Auditor.
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1985 300SD
1983 300D
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