by Fulltilt » Sat Apr 29, 2017 7:45 am
You may have had trash/bits in the case that weren't cleaned out, could be the crank wasn't polished enough, hard to say. I've rescued a couple cranks, but I spent a lot of time polishing the journal, probably wasn't worth it...
Was the piston / rod installed correctly? Right piston / rings ? Did you de-glaze the cylinder? Check the ring end gaps? Liberally oil the piston/rings , etc before assembly ? Maybe some bits of carbon broke loose from the valve/s.
Well, at least you got the pin locks in place, right?
I gotta tell you, I was somewhat surprised to learn of the intact pin/clips.
That is why most shops, ( myself included ) would rather install a new shortblock or engine. As you found out, a lot of labor intensive work goes into an engine rebuild ( even without the crank issues) , and it makes more economic sense to just do a shortblock/motor.
Obviously working on your own stuff can be fun and rewarding, usually both...or not!
A mind is a terrible thing to waste...