Why is my Greenlee 767 Water Pump leaking oil at the coupler, and the ram won't advance?
- CCynthia HessAug 2, 2025
An oil leak at the coupler with a non-advancing ram in your Greenlee Water Pump can stem from several issues: * A loose or damaged fitting, in which case you should tighten or replace the fitting and/or coupler. * A worn or damaged O-ring, which requires O-ring replacement. * Insufficiently tightened coupler, preventing check ball engagement; hand-tighten the coupler completely to engage the check balls.