Frnak McKenney wrote:
From the Department of Silly Questions: For my mower and chainsaw I
add something called Sea Foam which seems to de-gunk the fuel line and
carburetor fairly well. Would dripping something like this on an
Oilite bushing help dissolve some of the old-and-hardened oil so it
would do its job again? Or would you need something stronger to do the
job?


Frank McKenney

No. If the problem was just 'varnished' oil in the pores, then
alternating between soaking in a really agressive solvent (e.g.
dichloromethane) then pulling a vacuum (use a compressed air powered
vacuum generator as the fumes will probably rapidly kill a good vacuum
pump)could clear them out, but if the bearing has seized or squealed, the
surface will have been smeared and seriously overheated so most of the
pores will be blocked with metal particles or insoluable carbon. Some
people report good emergency results from burning out the old oil then
relubricating, but you need to immerse it in hot oil and repeatedly pull
a vacuum to do a proper job of relubeing.





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