Yes my old bar is a 774J 18...Pitch is.325 and gauge is .050 and chain with 74 links.
I guess from what I was told by OREGON is the many Oregon mounts do not accommodate the oil holes correctly.
A 8mm bar mount is correct but the oil hole positioning could be incorrect as I was told. Truthfully I am not sure.
If you get the chance in the future to get that Part number that would be great. I am in no rush. In the mean time
I will compare the 774J bar with Oregon 8mm mounts to see the difference. I have downloaded the catalog for them and I believe they are true to scale
with the pics of the mounts. Your saw obviously has a Oregon combo on it so I am sure that it gets oiled correctly.
Thank you for your time. Appreciate it. I had more fun tearing this saw apart to pieces in order to get it running..But this Bar and chain issue is frustrating..
Best
Joe