Oil that PicooZ bearing - RC Groups
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Jan 28, 2007, 02:03 PM
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Oil that PicooZ bearing

I noticed that after about a dozen or so flights that my PicooZ started to chirp (a high-pitched squeak). This was obviously the main shaft bearing starting to rub, which would eventually lead to reduced flight time and a loose wobbly shaft.

To gain access to the bearing without cutting open the whole body, I straightened a paperclip and heated one end in a flame and then melted a small hole in the base of the copter, directly below the bearing. This takes a steady hand, but is quite safe as there are no wires or electronics in this region. The bearing is about 7mm below the surface.

Using the same clip, I then ran some thin machine oil along its length while holding it horizontal and then quickly dipped one end to touch the base of the bearing. The oil ran along the clip and deposited a single drop on the base of the bearing. I then turned the rotor a few times and repeated the process. You could try powering the copter while holding it upside-down.

It may take a couple of flights before the oil penetrates fully, and until it does the rotor may pulsate as the bearing goes through periods of binding and then free running.
Last edited by Monkfish; Jan 29, 2007 at 11:11 AM.
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Jan 28, 2007, 02:11 PM
Registered User
thanks, good tip.
Jan 28, 2007, 02:14 PM
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willhaney's Avatar
Great tip, thanks for sharing. I think I'll do this before it's a problem.

Jan 28, 2007, 02:23 PM
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Yeah good tip.....

I usually use Marvel Mystery Oil as that Light Weight Machine oil.....

Last edited by guapoman2000; Jan 28, 2007 at 02:31 PM.
Jan 28, 2007, 08:37 PM
rotor head
EP_Heli's Avatar
Try fishing reel oil. It comes in a little bottle with a tiny metal tube at one end kind of like a syringe. I haven't tryed it myself, but I have been thinking that this would be the ideal thing to use for getting to those bearings.