Help rebuilding an 044

[K7NUT]

This may have come up before, but I am in the process of rebuilding an 044 for a friend, started out with a new P&C since the saw was new to him, but it died not long after I got the P&C installed...didn't even get it back to him yet!?
after it conked out, I noticed the flywheel had rubbed on the new cylinder, thought, uh-oh, bearing must have checked out?
So, never split a case before, but I'm game. When I got it apart, I did not expect this!!!?


So, not what I expected, but that's ok, when my friend bought this saw from some loggers? they gave him their other 044 they had accidentally run over with their truck, as parts...GREAT!
I had removed the 044 tag off the broken cover to put on the other since it didn't have one, but the parts saw didn't say Magnum, so I wasn't thinking Magnum. Now that I have the new bearings in, I need to get the crankshaft in, but oh-no...turns out, the parts saw is a 12mm wrist pin and the other is a 10mm?
So here's the question...can one put a 12mm rod/crank into a 10mm saw, of course adjusting for the obvious, would this be a problem, or should we just get a new crank/rod in the 10mm size?

 

[K7NUT]

So, I have been doing some poking around in here and I am finding out, maybe it would be a good idea to stay with the 10mm crankshaft/rod?
I still need to run this by my friend(the owner of saw), but there seems to be a lot of folks on here quite particular to the 044. So, I am asking you guys...what would you do, if you were looking at a broken crankshaft in an 044 Serial #126173164?
Would you go 12mm or stay 10mm...me, I'm particular to my 064?
If you would go/stay 10mm, I wouldn't think one would pick up a piece of cHINESE crap off A, so what would be a good replacement?

 

[K7NUT]

First time at this, I hope everything went as well as it appears?
View attachment IMG_3625.MOV

 

[Anonym]

Just seeing this post. Looks like you did a great job getting it back together. Did you end up sourcing another 10mm crank or go 12mm? OEM?

 

[K7NUT]

Found a 10mm crank on ebag I had the owner buy, it is beautiful and the rod bearing was tighter than the broken one I took out…but I’m sure the stress of breaking had nothing to do with it’s looseness?
Once I read about issues with 12mm cranks going into 10mm saws(not all), I didn’t want to go down that road, until I exhausted all efforts of another 10mm stocker.