On Tue, 26 Dec 2023 15:08:19 +0700, John B. <
slocombjb@gmail.com>
wrote:
On Mon, 25 Dec 2023 23:04:26 -0800, Jeff Liebermann <jeffl@cruzio.com>
wrote:
On Tue, 26 Dec 2023 13:16:50 +0700, John B. <slocombjb@gmail.com>
wrote:
On Mon, 25 Dec 2023 20:47:41 -0800, Jeff Liebermann <jeffl@cruzio.com> >>>wrote:
"MGTV: How to Hot Melt Wax Your Bicycle Chain" >>>><https://www.youtube.com/watch?v=m3uSbNjI53Y> (30:43)
I watched the above for a minute or so. Foolishness. The guy is using
his wife's cooking gear. :-)
I'm surprised he lived to tell about it. Notice that he warned the
viewers not to tell his wife about it.
However, I have a question. At:
<https://youtu.be/m3uSbNjI53Y?t=1271>
he dumps a waxed chain into the cooking pot and shows bubbles coming
out of the chain. He declares this to be air bubbles and getting the
wax into the chain and pushing the air out. He also mentions using an >>ultrasonic cleaner to "push the wax in to get the air out". What I
see in the video is far more "air" coming out of the chain as bubbles
than I would expect from the small air voids in the chain. It looks
to me more like it's boiling water and belching water vapor, but I'm
not sure. How the water got into the chain or wax is unknown.
What's your opinion? Air bubbles, boiling water or something else?
Being a savvy old fellow I bypassed the kitchen and bought an electric >cooking pot. I set the thermostat just cool enough that the wax mix
didn't boil. No bubbles. I then washed the chain in a solvent to get
as much "dirt" off as possible - note: some skip this step - and then
after the chain had stopped dripping tossed it in the hot wax. But no,
I never saw the chain giving off any bubbles whether in the solvent or
the hot wax. But then, I really didn't study the subject, I never
hovered over the washing or waxing to see whether it bubbled or not.
Thanks. I guess I'll need to either hot dip a chain and see for
myself, or convince someone to do it for me.
But, I'm a bit of a skeptic about forcing the wax into the chain.
In a previous rant, I mentioned that if one really wanted to remove
all the air bubbles, one would use a vacuum pump. That's the way I
prevent air bubbles from forming or remove them from plastic, wax or
silicon molds. <
https://www.google.com/search?q=vacuum+pump+to+rremove+air+bubbles>
Hot
wax is a pretty thin liquid and flows almost like water. A new chain
is pretty well soaked in a sort of oily substance which is at least to
some degree a preservative to prevent rusting before sale. If the >manufacturer knows what he is doing the chain must be completely
saturated so where does the air come from?
Sloppy handling. Splashing the chain around in a pot of hot wax is
going to trap some air bubbles in the wax. Try an egg beater in some
wax and watch the bubbles form.
As an aside in breaking a new chain to make it the correct length for
the bike the pins always look oily.
I once took apart an pin and sleeve type chain and removed all the
grease and oil. That included partially removing the pins to degrease
them. I then smeared the chain with some thin oil that I dyed with a phosphorescent oil leak detector that glowed under UV light. I put
the chain back together ran it for a while on a bicycle stand. I then
took it apart again and inspected the pins and sleeves under a
microscope and UV light. The pins were mostly dry. Some of the dye
on the pins came from smearing the pins against some oil piled up on
the side plates.
I must admit that this test wasn't definitive and should probably be
repeated under more controlled conditions. However, if it's true,
then the only oil that chain internals will see is the oil that was
applied at the factory.
--
Jeff Liebermann
jeffl@cruzio.com
PO Box 272
http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann AE6KS 831-336-2558
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