that leaf is from japan and is what is causing the knock. btw.... if ur car was knocking why wouldnt u try and at least diagnose the problem instead of taking it out right away not knowing whats up. is it a deep knock or more of a high pitched knock. ive had lifters bleed down on me an a few occasions and a good wot run cured it. heres a good question: did it have enough oil in it?