The flywheel scraper had been ground down previously. It was about 5/16" away from the flywheel. Most likely by an inexperienced builder in the past trying to put the larger 8 1/2" diameter flywheels in a 8 1/8" type case. Early knuckle flywheels are smaller in diameter. We had the scraper welded up - and we machined it back down to it's original position so it scrapes oil effectively feeding the oil pump cavity - and most of all . . . not dragging down our flywheels in excessive oil - reducing our power output. Or something like that . . ?
The cases are washed in hot water, blow dry and painted - and paint is baked. The fumes are gnarly. This seals all the welding pores from previous welding and abuse - This Knuck will LIVE ON !