Originally Posted by
EFI-Unlimited
Barring anything unusual, if it turned over before, then it is most likely you are doing something wrong today. Check the old main bearings and see if you can get a size. They are stamped std, .010, .020 to denote their undersizings. This way you an confirm you have the correct bearing.
If this drags on too far, you can get a black sharpie pen, and color in the bearing surfaces, and then assemble them one by one, rotating them between each cap install. The sharpie will leave a telltale where the rubbing is going on, and maybe give some insight was to what the issue is.
Brian
EFI-Unlimited
the bearing are the same size as the ones i removed. and like i said the guy at the machine shop said the mains and rods were .010 under.
the other day i sat the crank in the block with ONLY the 1st and 5th main bearing halves in the block.
i set a dial indicator on each of the 2nd,3rd,4th mains...and turned the crank and looked at the needle. it moved .003 down as i rotated the crank. and then back up when it came around.
that sounds like its bent to me. it did the same thing on each main.