Dad's just got this old "Pank" pump, should look quite nice cleaned up but internally it's in quite a bad way, one of the conrods is missing, the other is very worn and the crankshaft has a little bit of pitting. I think the conrods are just short enough to fit in the swing of my lathe, if not I'll need a boring head for the mill but I'd offered to make them before I saw the state of the crank. Chances are I'll just leave it as is, he's never gonna run it long enough to wear out a new conrod but it got me wondering if it could be repaired, how would you hold a part like that though? Obviously in a four jaw chuck and indicate on the journal but what do you do at the tailstock? Once I've got it held I can turn it back to good metal and either make new conrods to fit that or weld a sleeve on and turn it back to it's original size. Surprisingly, the crank end of the remaining conrod doesn't look too bad, the piston end on the other hand... I assume the wrist pin is similarly pitted and I'll be making a new pair of those too.