I picked all the cotton out of these oil cups in the first picture. I can see down through them and see the brass bushing at the bottom of them now. When I fill them with WD40, they don't drain, at least within the 30 minutes I was watching. Looking at the brass bushing where the shaft should be, I don't see a hole. Is there suppose to be a hole at the bottom?
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Countershaft oil cups not draining? Craftsman 12" 101.07402
- Thread starter Atempt
- Start date
- Joined
- Apr 30, 2015
- Messages
- 12,238
I believe those are oilite sintered bearings so the oil wicks through them very slowly
you won't see a hole since the bearings themselves are porous
-Mark
you won't see a hole since the bearings themselves are porous
-Mark
- Joined
- Apr 30, 2015
- Messages
- 12,238
On close inspection the bearings should have a rough looking surface, since they are made by fusing tiny bronze balls together under heat and pressure
-M
-M
- Joined
- Feb 2, 2013
- Messages
- 3,960
a contained stream of air in the oil cup could help push some oil through the bushings
i'll use a rag wrapped around a rubber air nozzle tip and regulate the air to around 50 to 60 psi and give a sustained blow for a few seconds, keeping the rag in place until the pressure decreases to avoid oil spray
i'll use a rag wrapped around a rubber air nozzle tip and regulate the air to around 50 to 60 psi and give a sustained blow for a few seconds, keeping the rag in place until the pressure decreases to avoid oil spray