Good evening -
A few weeks ago, I received my 5.9 Magnum back from the machine shop. I had a bunch of work done and one of the things I had done was the rotating assembly balanced. My machinist had asked me to provide (along with the rods/pistons/crank) my flex plate, lower timing gear, 2 rod bearings, 1 set of rings for a single piston, and my harmonic balancer and flex plate bolts.
I'm getting ready to get the short block assembled and was inspecting the parts that he returned to me and noticed both rod bearings have identical grooves that are not on the other new bearings (I don't recall seeing these when I brought them in).
I am assuming that perhaps these two grooves are from some sort of fixture used for balancing or resizing the rods - or marking a centerline?
They are deep enough to catch a fingernail, but just barely.
Is this normal - should I just replace these two bearings?
Just curious as they look too intentional and identical to be just a couple of errant scratches.
Thanks!
A few weeks ago, I received my 5.9 Magnum back from the machine shop. I had a bunch of work done and one of the things I had done was the rotating assembly balanced. My machinist had asked me to provide (along with the rods/pistons/crank) my flex plate, lower timing gear, 2 rod bearings, 1 set of rings for a single piston, and my harmonic balancer and flex plate bolts.
I'm getting ready to get the short block assembled and was inspecting the parts that he returned to me and noticed both rod bearings have identical grooves that are not on the other new bearings (I don't recall seeing these when I brought them in).
I am assuming that perhaps these two grooves are from some sort of fixture used for balancing or resizing the rods - or marking a centerline?
They are deep enough to catch a fingernail, but just barely.
Is this normal - should I just replace these two bearings?
Just curious as they look too intentional and identical to be just a couple of errant scratches.
Thanks!
