Re: Oil for sintered bearings
I have now dissembled the Brenell flywheel bearing and I now understand why the self alignment is so stiff: The first picture shows the component parts, A is the machined aluminium housing, threaded at the back, B is the brass nut that screws into it. C is a felt oil reservoir and D is the oilite bearing itself. There is one of these assemblies each side of the flywheel.
The second picture shows the parts assembled. B has been tightened at the factory by knocking round with a centre punch in the small hole! Maybe when new the oilite could still align, but 50+ years later it's basically being clamped in place.
I have degreased it all and am currently waiting for a lighter oil. I feel 5w40 is too viscous. I'd like to see this flywheel freewheel like my Cossor.
If there are any Brenell Mk5 users reading this how long does your flywheel spin for after switching from 'play' to 'stop'?
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