Re: 1000RR living room build
Im unsure why this motor spun the #3 rod bearing but I knew the previous owner and the bike wasnt abused nor neglected. Regular oil changes shouldve prevented such a catastrophe but from what Ive encountered on other forums the problem is not uncommon, especially when almost all the spun bearings occur in the #3 cylinder. Perhaps this points to a lubrication system issue in which those particular passages suffer from lower oil pressures. There was significant carbon buildup in the combustion chamber which would have resulted in higher pressures since the volume is so small but its likely that wear and tear had a lot to do with it. This motor had about 55k at the time.
Heres what the damage looks like:
http://i660.photobucket.com/albums/u...adbearings.jpg
It didnt take long for the bearing to get chewed up once it started to spin. The crank journal has been etched and while there are options to machine and replate it, the cost and hassle in finding a matching bearing to make up the difference would only really make sense on a unique project where replacement parts are inaccessible. The rods been etched as well and the steel has changed colour from the heat. Maybe Ill make a tribute sculpture to Honda out of this stuff. :)
As I wait for parts Ill be taking the opportunity to adjust the valves but thats as far as Ill be going on the top end...still learning :D
