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Old 11-13-2004, 02:38 AM
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whunter whunter is offline
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Exclamation Moment arm of lever = gap variation..

Quote:
Originally Posted by psdsteve
I may be a newbie of sorts with MB's but I don't understand how much different it would be to check the valve lap between the valve and lifter or between the lifter and cam lobe. On most non OHC engines you check it between the valve and the rocker arm.
Please enlighten?
Stephen
Refer to the attached graphic.

A .1mm gap in the blue area will = .05mm in the green area.

The drawing is exaggerated for effect.

Follow the correct OEM procedure for your car...

Note:
Valve lap is between valve face and seat.
You where talking about valve LASH = adjustment.
Attached Thumbnails
Valve adjustment OM615, 616, 617 FYI.-valve%2520adjust_a.jpg   Valve adjustment OM615, 616, 617 FYI.-valve%2520adjust_b.jpg  
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Last edited by whunter; 10-25-2011 at 06:21 PM.
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