OIL PUMP DRIVE BEARING DESIGN (A-6560)
The oil pump drive bearing (A-6560) has been redesigned to make it compatible with the requirements of an engine with full oil pressure. The oil pump drive gear (A-6551) is unchanged. These changes to A-6560 include an o-ring groove and a radial lip seal (National #330699). The new oil pump drive bearing will be held in place with a setscrew that is hidden behind the valve chamber cover.
The oil pump drive bearing (A-6560) has been redesigned to make it compatible with the requirements of an engine with full oil pressure. The oil pump drive gear (A-6551) is unchanged. These changes to A-6560 include an o-ring groove and a radial lip seal (National #330699). The new oil pump drive bearing will be held in place with a setscrew that is hidden behind the valve chamber cover.
