Hello. Working on assembling my C-123 after it's come back from the machine shop. First time for me to attempt a rebuild. Mains and rods are 10 under and clearance is .0015 to .0020 measured with Plastiguage on the mains and rods. New Sleeves, pistons, and rings. With the mains it seems smooth enough but when I have all the pistons installed I'm unable to rotate the crankshaft by hand. Should I be able to do this or is this normal.
Think it's that the new rings are very tight. Someone boogered up the threads on the front of the crank in the past so I haven't been able to get a bolt installed and try it that way yet?
Thanks in advance!
Think it's that the new rings are very tight. Someone boogered up the threads on the front of the crank in the past so I haven't been able to get a bolt installed and try it that way yet?
Thanks in advance!