JHZR2
Staff member
I’m making this a separate thread solely for the discussion of pillows to help folks with diagnosis.
On my ML320 I didn’t realize that there are two idlers!
So I have one replacement. It’s OK, I can do the other one sometime, not a huge deal.
But which one is the worst one? One doesn’t spin nearly as much, more so than the new pulley, but not as much or as loud. It spins smooth though. No issues. I assume it has more grease?
The other spins easily and beautifully. I assume it’s because the bearings are still great but there’s no excess grease?
My logic is to replace the one that spins easily, since the other spins smooth. The other I’ll order and replace later.
Please let me know and let’s discuss. But the intention is for this to be a thread about general diagnosis, not my specific vehicle. I think this is universally useful.
Thanks!
On my ML320 I didn’t realize that there are two idlers!
So I have one replacement. It’s OK, I can do the other one sometime, not a huge deal.
But which one is the worst one? One doesn’t spin nearly as much, more so than the new pulley, but not as much or as loud. It spins smooth though. No issues. I assume it has more grease?
The other spins easily and beautifully. I assume it’s because the bearings are still great but there’s no excess grease?
My logic is to replace the one that spins easily, since the other spins smooth. The other I’ll order and replace later.
Please let me know and let’s discuss. But the intention is for this to be a thread about general diagnosis, not my specific vehicle. I think this is universally useful.
Thanks!
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