Valve Guide Clearance on OM642
10-13-2020 | 09:56 PM
#1
Thread Starter
Member
Joined: Feb 2020
Posts: 118
Likes: 25
2012 GL350, 2014 GLK250
Valve Guide Clearance on OM642
Hey guys, I have heads off om642 on GL350 2012.
I notice that there is a bit of play in each valve. I am taking the heads to a machine shop to get cleaned, and want them to check the play to see how much clearance there is between the guide and valve stem. I tried finding the acceptable range in WIS but all I found was an article advising to visually inspect the stem for scratches (and to use your nail). Does anyone know where to find these values?
I notice that there is a bit of play in each valve. I am taking the heads to a machine shop to get cleaned, and want them to check the play to see how much clearance there is between the guide and valve stem. I tried finding the acceptable range in WIS but all I found was an article advising to visually inspect the stem for scratches (and to use your nail). Does anyone know where to find these values?
