----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----Hi Michael,
I think that a previous owner found a wider bearing and put a shim between the wheel halves to accommodate the bearing. Neither the bearing or the shim are legal unless a 337 has been issued for them in your airplane. As for the "vibrations," or shimmying, 1. Check your tire pressure - you want around 18 lbs; 2. Check the wheel balance - add weights if necessary; 3. Check the scissors bolts for looseness and wear - tighten or replace as necessary; 4. Check the steering rod ends for play - replace if necessary. Welcome to Ercoupe land. Glad to have you with us.
Syd Cohen
Ercoupe Owners Club
Region 5 Director
Wausau, WI
NC94196
Amundson, Michael wrote:
----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----hello,I'm a new comer, but I have questions already.A good friend of mine just recently acquired a coupe, and while changing the inter tube, and bearing on the nose wheel, several things surfaced which I'm hoping you people can help shed some light on.This is on an old style one leg nose gear...First of all the axel nut was not "on" far enough, the threads of the axel didn't even come all the way through the nut. The new replacement bearing was thinner than the one that was removed. When the wheel was split to replace the bearing there was a 3/16 spacer between the wheel halves. My thoughts were the original bearing spun inside the aluminum wheel and allowed the proper size bearing to "wobble" and whom ever repaired this problem decided it would be an acceptable method to use a wider bearing and a shim a little less than the oversized bearing width that would allow the wheel to tighten around the outer race of the bearing. Could this be right? Looked in the parts manual and there was no spacer pictured, it's rather unusual to have spacers between wheel halves.We installed the correct bearing, aired up the tire and did a high speed taxi, " got to about 55 and the vibrations were of such magnitude it would have made a spinster smile.so what are our options?Purchase a new nose wheel?Does anyone have proper dimensions of the bearing seat of the wheel so we can mike them to see if our guess was correct?I looked for wheel markings " side to side for balance purposes but could not find any.I guess I'm hoping some one can help help us, or at least give some suggestions what to look for....thanksM============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers-tech/
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