17-05-2012, 11:46 AM
If the bearings are f*cked, a jolt can cause them to munch against each other and cause the knock.
I said it first anyway so I want my prize when i'm right
I said it first anyway so I want my prize when i'm right

![[Image: signature_zps1a02ba79.jpg]](http://i1128.photobucket.com/albums/m481/martypellowe/signature_zps1a02ba79.jpg)