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HomeAircraftHelicopterHIROBOOther › Freya Evo pinion gear + bearings assembly
03-05-2008 07:45 PM  10 years agoPost 1
AlexV

rrApprentice

Dubai, UAE

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Before installing engine & inserting pinion gear into two bearings hirobo recommends to cover cylindrical part of pinion gear by molybdenium grease. Accoding my expirience it's better to apply green loctite. If I need to strip this assembly I can loosen main frame bolts and remove pinion with two bearings. after that remove bearings.
What do you think?

Alexander

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03-05-2008 10:06 PM  10 years agoPost 2
Sonic

rrNovice

Grand Rapids, MI

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You will get many opinions on this topic. I have had no luck with the grease mothod. I epoxy the bearings to the pinion. Make sure you dial indicate the clutch as this will make the entire system last the longest.

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03-05-2008 11:31 PM  10 years agoPost 3
Dr.Ben

rrMaster

Richmond, VA, USA

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I sorta understand the theory to the grease, but after that pinion spins out in the ID of those bearings long enough to use up/wear through the grease, you'll be left with a pinion spinning in bearings and wearing accordingly. And you can't buy an Evo pinion without the bell. I loctited (603 or 640) the bearings to the pinion and the clutch shaft bearing to the start as I've done for 15+ years on several brands of models. My current Evo/X-Spec machine is running flawlessly and with no worries of anything spinning out on the ID of a bearing.

Of course, YMMV. I just know what is working on my model.

Ben Minor

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