Recently replaced all bearings and found this. I set the Magnaflow pump as per stated by several here on PB. This prevents cam walk, I'm now more concerned about distributor pulling it rearward. Secondly, with the large washer in place how did it eat the face?? It is not a deep cut and shows up on the cam gear as well. Looking close at the large washer, it has a couple specs on it. Could this have gotten hot and scrubbed hard enough from heating and cooling that the welded on particles did its damage? Engine only has 10-12 hours on it. Has anyone placed a Torrington type bearing at the rear in the cam plug.( I know, you're supposed to buy a new cam gear with Torrington). If someone can tell me if
the rear of the cam idea is Verboten
I have cut an oil groove in the cam bearing, should show up in pic, Hope Pic shows.