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If its around a shaft/bearing, it might leak a lot more if its running. Maybe run the lathe and watch the towels? Put in different gear combos so all shafts get spun?
My lathe leaks a little from around the lead screw and feed rod, only while running. Checking the parts breakdown shows that there are oil seals for both, which I guess need replaced.I only have to top it off a couple times a year so I not too fired up about tearing into it just yet. Dave
More good things to check! I'll have to see if I can loosen the oil filler plug. That would certainly be easy to do!Mike, if the sight glass is leaking - and this is something I've considered as that would make sense based on where I found the bulk of the oil, and why it only leaked to just below the sight glass. But if this is the case, could I get away with just caulking around the sight glass with some RTV or something? That way I wouldn't have to take the gearbox apart to replace a gasket or O-ring...Just speculating here. I still don't really know the location of the leak.Kim
Looking at that diagram, boy there sure are a lot of parts there! I take it that undoing the front cover bolts to remove plate 450 and put it back on again would be a major pain in the end mill, to get all those shafts lined up and back on again? Could well be that gasket 396 is seaping at the corner there at the red arrow, dripping into that hole you plugged. If so, the plug is probably a good fix.