Originally Posted by
Taoqi
well, I finally made it over to my parents house today to drop the oil pan... and I have 2 spun bearings. #1 and #4 pistons had NO bearings left at all. the crank at the #1 piston looked fine, I couldn't feel any scratches on it at all. #4 had a few scratches that I could barely feel at all. do any of you think I should get a new crank? can I swap out the bearings or crank without pulling the engine again? I think I remember someone telling me I could.
Do not re-use that crank! Honda uses forged cranks that cannot be machined or turned. Even if you did risk grinding it, If a bearing has spun once its likely that it will happen again. Used OEM cranks in perfect condition can be had for $100 - $200.
It will take less time pulling the motor and doing it the right way than it would take to attempt working on the engine still in the car. You can't check for clearances upside down. I'm not saying its impossible, but I wouldn't even attempt. If your confident in rebuilding your block, pulling the engine should be the least of your worries.