Hi Everyone,
I'm trying to fix a friend's 11hp 28" Anniversary model. The idler sprocket bushing was completely shot and the drive sprocket was in very poor condition. I have sourced a replacement drive sprocket (GT7012) but have been advised to use a bearing in place of the sprocket (GT7976) to tension the new chain (GT500). I'm wondering if this is a good idea and how I should go about it. Does anybody know what size bearing to use? Should the width of the bearing be greater than the width of the chain outer plates or thinner so that the bearing only contacts the rollers on the chain? All help much appreciated.
Thanks in advance.