I've been rebuilding a b16 and I'm using the old crank and the old rods. And I ran into a problem. I used the oem correctly colored bearings from Honda for the mains and rods. When I plastiguaged my main bearings everything came out within spec. But all the rod bearing clearances are too tight. Not sure how using the correct bearing colors would come out too tight??? 3 are greens and one is brown. If anybody has any idea what I should do please let me know thanks!