hi guys, well i got some questions about engine problems like, why the rod bearind rans??... i mean the bearings have a groove, for keep it steady when the engine is running!... i bought and dohc engine and the rod bearing wasen't on their position, well just both of them!, i wanna know whay that happens!

 

otto, I assume english is your second language but what I get from your question is "you spun a bearing"? several reasons that this could happen: when improperly installed or, from low oil.

 

hahaha it is! but is my big brother who wrote this! i got a pretty bad english, but not that much!.... i see! it can happen if you miss a shift, o rev to high the engine??

 

Yes, that could cause the problem. Also taking hard turn under heavy acceleration can cause oil issues. Oil gets to sloshing around when taking sharp turns, and the oil pick up does not get a enough oil. I'd recommend making a windage tray.