M271 engine need your help!
10-23-2016, 07:38 PM
#1
Member
Thread Starter
M271 engine need your help!
Hey guys, so i read a lot of horror stories about timing chain skipping time and messing up the valves on M271 engine. I recorded a video of a cold start and wanted to see if you guys think it sounds ok or not? I appreciate your input!
94k miles
94k miles
Last edited by dboyrusky; 10-23-2016 at 07:42 PM.
10-24-2016, 02:38 AM
#3
Member
Thread Starter
Once i take VC off, what signs should i look for? Loose chain, worn sprockets, anything else?
10-24-2016, 08:36 AM
#4
Super Member
Join Date: Oct 2013
Location: Carolinas
Posts: 527
Likes: 0
Received 20 Likes
on
20 Posts
2005 C230K SS
You can inspect for chain slack across the top guide as well as the condition of the sprockets and guides themselves. With the VC off, turn the crank bolt clockwise to inspect the chain better since sometimes the slack is not apparent at first. As a starting point, my TC looked like this when I replaced it preemptively at 122k ish miles. Mine turned out to be barely stretched about 2mm. Car sounded same before and after the replacement.
Also realize that the M271 is not exactly a silky smooth engine when it comes to the sounds it makes.
Also realize that the M271 is not exactly a silky smooth engine when it comes to the sounds it makes.
Last edited by RWDlifer; 10-24-2016 at 08:39 AM.
