Anyone ever rebuild a leaking Gaggia Classic pump and get it to stop leaking? After my rebuild I decided to try backflushing my machine and afterwards found the top of my pump leaking. Must have been weak as I followed to backflushing of only 5 seconds run time.
Anyways, there is an o-ring around the top that should be the culprit if I could only fine one (or two but not 50 or 100) it might be an affordable fix vs buying a new pump. I measure 1.5mm x 13mm x 16mm (cs x id x od). Went to my local rubber shop where I get belts and hoses and o-rings and they didn't have anything but could order 100 for me so that made it not worthwhile.
Thinking of trying some silicone sealer.
Think it'll work?