Found bad connecting rod bearing, now what?
01-03-2003, 07:36 PM
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Found bad connecting rod bearing, now what?
Discovered a bad connecting rod bearing in a Yamaha R6 engine. My question is, how do I know if the crank journal needs to be reground? Visually it looks okay but I am not an expert. This engine revs past 15,000 rpm so I don't think "looks okay" cuts it 
Do I just need to buy a new bearing and plastigage it? If you're curious, here's the bad bearing...
http://www.we-todd-did-racing.com/we...MxeTU0MQ%3D%3D
Do I just need to buy a new bearing and plastigage it? If you're curious, here's the bad bearing...http://www.we-todd-did-racing.com/we...MxeTU0MQ%3D%3D
01-03-2003, 07:51 PM
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Re: Found bad connecting rod bearing, now what? (Angry Joe)
Check the factory tolerances and mike the thing , this is the only way to tell if it is within the range . make shure you mike it in more than one location on the jornal this will insure it is round. I mean the more places you check it the better (all the way around)
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