450 Hi guys. where do i fit the shim washer on my main gear/tail auto,

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orbi

Member
When I change my main shaft I have a very thin "shim washer" included in the pack. where does it go for it will not fit anywhere but on the mainshaft itself. There is no room on the bottom side where the gears are. Could it go on the top side between the bearing and the mid lip ? could it go on top of the shoulder ring on the under side of the bottom bearing. ??

Ive looked at loads of vids but cant find any on this. I have probs with serious vibrations and i changed the mainshaft ( new align one, checked it for straight.) and bearings but still cant sort it. I have weighed the blades and they are spot on at 23 g each and track up perfectly on rotation. so too is the flybar. Im puzzled on this one.
 
O

orbi

Member
Thanks matey.... I thought it was the only place it could go, on top of the main gear collar but wasnt sure. It is difficult to get that shim into place and stay there while sliding the shaft through it on my 450. It may be easier on a larger model eh?. Thanks for your help again.
 
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