If the plastic sump only has a weeping crack in it, could it be fixed with the right epoxy?
Plastic fuel tanks have been around for a long time now, and people patch those:
Plastic sumps are listed on the packet there & technical data on their website says it's good for up to 500F (so oil isn't going to get any where near that hot!)
My old M20 had epoxy applied to a crack in the aluminium sump, and so far it has lasted 9 years and never leaked.
Plastic fuel tanks have been around for a long time now, and people patch those:
Plastic sumps are listed on the packet there & technical data on their website says it's good for up to 500F (so oil isn't going to get any where near that hot!)
My old M20 had epoxy applied to a crack in the aluminium sump, and so far it has lasted 9 years and never leaked.




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