I have taken motors apart with 20 k miles or more and the guide is still usable maybe the edge is gone on one side but not the whole rubber off, like on some that we suppose to be rebuilt. is it because of the after market , Old OEM . if you had to replace on let me know:
1 oem or mikes
2. how many miles or years
3 motor stock or rephrased
4 did you install a new chain
1 oem or mikes
2. how many miles or years
3 motor stock or rephrased
4 did you install a new chain