Hello, Had the Flywheel/Pressure Plate turned on the '35 Truck, looks great. However in looking very close there are many hair like cracks on the Flywheel metal. Are these Heat Cracks? Any problems/concerns with these? Should they be fixed/ignored, etc? Also since clutch, pressure plate and oil film of any kind generally do NOT mix, why did mfg. put a oiler zert on the TO Bearing? This might by why that entire enclosed space inside the bellhousing was soaked in oil. Any way to prevent that and still give the TO Bearing some lubrication? Thoughts appreciated, Tom