Found some info on the web...so you better turn them around.
The purpose of the rocker arm oil deflector is the following:
When oil is sent up the pushrods, it passes through the rocker arm and hits the oil deflector. The purporse of the deflector is to stop the stream of oil from jetting over the rocker arm and instead the oil is redirected to the rocker arm fulcrum, thereby lubricating it. Lack of lubrication causes premature wear of this powdered metal item.
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