CM871 engine vibration

[dhirocz]

You don't 'diagnose' a damper so much, you replace it as a part of routine maintenance on the isx. It has viscous fluid in it that hardens over time, and it looses it's ability to dampen anything. They wear out naturally over 500k miles.

Also might want to look at cleaning out and testing your metering and timing actuators too. Rawze made a video on that. I had a bad one I replaced, made a huge difference. They also wear out naturally, as most things do.

I have developed a similar problem, so I'll be checking my remaining actuators and running an injector leak down test again when I get home Thursday, among other things.

And yes, check that compressor. It's supposed to go in a certain way. If they just threw it on there, that won't help with a shaking/vibration issue.