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Robbe › Eolo eating main gears
04-29-2004 11:12 PM  13 years agoPost 1
Spitz

rrApprentice

UK

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Guys, I’m having a bit of a nightmare with my Eolo.
I’ve got most of the standard upgrades including the 3rd bearing support.

Problem I have is that I’ve been eating a main gear at each flight attempt.
I got through three in the past week.

What kind of mesh are you setting on the tail pinion to main gear? I’m finding this a little tight with a new gear installed.
I’m not too sure if it’s an issue with the 3rd bearing upgrade or not, but I find that if I follow the heliup instructions about tightening the collar the pulling the main shaft through with the bottom screw, then I have such a tight main shaft that it does not rotate smoothly.

Anyone have any ideas?

Thanks,

Spitz

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04-29-2004 11:15 PM  13 years agoPost 2
HeliDezz

rrNovice

Fredrick MD

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What part of the gear is stripping the top part of the main gear where the tail gear sits on?

HeliDezz

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04-29-2004 11:26 PM  13 years agoPost 3
Helifool

rrVeteran

Rochester New York

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Ok I have been through this nightmare. First of all, USE OIL to break in your gears, Many people say its not nessesary but it was for me. I put my tail pinion as close as possible to the gear. It was tight at first but I just ran it a bit with oil and it loosend up with a perfect mesh. making it slight lightly tight will make it wear into a perfect mesh. Just be patient during the breakin process.

The tail drive bearing block upgrade from quickUK also helps out here.

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04-29-2004 11:48 PM  13 years agoPost 4
Spitz

rrApprentice

UK

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Yes, it's the top of the main gear where the tail takes off.

I have the QuickUK bearing block upgrade.

Let me take a look at using a little oil, I'll let you all know.

Spitz

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04-30-2004 12:59 AM  13 years agoPost 5
Helifool

rrVeteran

Rochester New York

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Goodluck. I hope it works out because I had just suffered through that whole process,

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04-30-2004 01:13 AM  13 years agoPost 6
HeliDezz

rrNovice

Fredrick MD

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What i did is i used grease on the gears not oil. Also make sure that the screws are tight and that you have the block pushed down all the way so that the gear is sitting on the main gear tight. I had to use a screw driver to hold the block down and then tighten the screws up i tighten the bottom ones first then the top screws.

HeliDezz

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04-30-2004 03:19 AM  13 years agoPost 7
Busted Nut

rrNovice

Winnetka, CA,USA

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Gear stripping

I found that the coller or spacer under the top of the frame and the main gear is just a little too short. I made one 8mm x 6mm x 3.2mm, and this lowered my main gear just enough to inprove the gear mesh. It also lowered the tail drive wire closer to center in the tube. I also run the third bearing kit.

Hope this helps, John

Fury,Eolo,9C&401

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04-30-2004 09:40 AM  13 years agoPost 8
comet

rrVeteran

Neuilly sur Seine, Fr

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I second helidezz for the grease rather than oil.
I grease all gears and pinions every five flights or so, and whipe off excess after the first flight.

For the tail shaft block, I use to tighten screws in a diagonal path: first, bottom right (or left), then top left (or right), then bottom left (or right), then top right screw (or left).
Too, I am not sure you have to squeeze the block that hard on the main gear.

So far, no gear eating.

VT "slow&low"

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04-30-2004 09:49 AM  13 years agoPost 9
steph

rrKey Veteran

Hampshire England

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Hiya

When i meshed my gears for the first time i used a thin peice of paper between the gears to mesh them i have allways done this and never had a problem with gear eating on the eolo i did use a little silicon grease to bed them in initially once you have run the gears in this way and removed the highspots i then reajusted the gears with the paper
Hope this help

I do recomend the tail drive outputt bearing block from QUK and the 3rd bearing mod i use a home made one this works fine

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04-30-2004 10:18 AM  13 years agoPost 10
Helifool

rrVeteran

Rochester New York

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Well the reason I used oil was because the manual stated to use it. You dont need to regularly grease or oil your gears though. Just once is enough to have you gears broken in and then your all set.

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05-02-2004 08:32 AM  13 years agoPost 11
Spitz

rrApprentice

UK

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Well, Fitted a new gear yesterday.
Used some silicon grease, and all appears to be well.

Thanks for this tips.

Spitz

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05-02-2004 10:50 AM  13 years agoPost 12
Helifool

rrVeteran

Rochester New York

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Happy flying

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05-02-2004 03:53 PM  13 years agoPost 13
HeliDezz

rrNovice

Fredrick MD

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Spitz let us know how you make out.

HeliDezz

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Robbe › Eolo eating main gears
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