On 12/2/2014 5:36 AM, Chris Trask wrote:
...
It's America's favourite lubricant, even though it's not supposed to be used as a
lubricant. I've come across all sorts of bicycle bearings that suffer from what I call
"WD-40 Syndrome", where the WD-40 has dried out to form a thick goo.
I've certainly run into that sort of thing. I didn't think the residue came primarily from WD-40. A lot of real
lubricants lose their more volatile components with time, heat, stress, and become gummy, or worse. Seems to me WD-40
just temporarily reinvigorates them, until it mostly evaporates. Of course they are never as effective WD-40ed as
properly re-lubed, and deteriorate again quickly
I'll squirt in some Liquid Wrench to loosen it, then chase it out with 30W
motor oil to chase it out.
A few days ago we had a couple come into the bike shop with a crippled
rear wheel. They had taken it to a commercial shop and wer told that their
gooed-up hub would cost $130 in parts to replace. I asked to see it, and yes,
it felt like it was in the advanced stages of WD-40 Syndrome as the pawls were
just barely clicking and engaging the spline. I didn't have any Liquid Wrench
available, so I gave it a shot of WD-40 to start, which loosened it up. Then
gave it repeated applications of 30W motor oil until the fluid that came out
was reasonably clear.
Is the motor oil a long term solution? I've not done any such rebuilding for many ages, but I think I used white lithium
grease, and maybe Moly for wheel bearings?
Lubricated Moose
What if the Hokey Pokey *IS* what it's all about?
--
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