No burr's, smooth as can be. I do see something of concern on the outside of the stub, not keeping it out, but there's a groove in the stub of the balancer. We'll call this line "L1". The old seal must have ground a groove, so I'm sure the new seal will leak. But looking at where the groove is in relation to the thickness of the seal it doesn't look like the HB was in any further then it goes in right now. Unless this groove is there on all stock HB's.



In this pic you can see where the outside of the seal sits on the stub right now. "L2"



.......and where it "should" sit "L3"



Does anyone else see the difference in the shine of the metal between L1 & L2 and then L2 & L3? If that makes sense. It looks to me that L2 to L3 was exposed and wasn't in the timing cover.