CM 871 Burnt Valve

[Rawze]

biggest Q would be ... is it in the thrust side of the crank? Or the bottom where there is little to no thrust?.

Next would be if it can be polished with a dremel + wire wheel to remove / dull its edges?.

Last would be to determine how long it likely has been like that?.

What did the bearing look like that came out of it?.


If it happens to qualify by .... Not being on the thrust side of the crank, Looks like it has been there a very long time, bearing that came out was acceptable, and a simple wire wheel can clean it up a bit,.. personally, I would just polish it a bit and go again. Check it in 100k miles to be safe and to ensure it was not causing excessive wear to the bearing ... but that is just me.