When lubricating parts that do not have a grease relief port inject grease until?

When lubricating parts without a grease relief port, inject grease until you see it begin to ooze out of the seals or joints. This indicates that the cavity is full and excess grease can escape, preventing overpacking. Be cautious not to over-inject, as it can lead to damage or increased pressure in the component. Always follow manufacturer specifications for lubrication amounts and intervals.