Waterluvr
New Member
Be aggressively obsessive, rotate the impeller during leak check.
If the thin o-ring leaks without sealant, I feel it's the wrong size.
Of course the lip seal and o-ring both should be oiled before assembly.
Co-sign that, try it with the small ring and see if it holds just for a test? I'm curious now...I'd still use the sealant for final assembly though 7K rpm's is going to find a weak point in a seal or ring sooner than later.