Some good points here -
Rubicon you're right so that rules that one out.
Frank .. I've noted all your points & will go through them when I see the guy tomorrow. The cooling jets were both broken, pretty close to the mounting side & the flywheels were not replaced although they will be as there is some grinding evident when pivoting the rods.
Hawg - that sounds like a very likely scenario - I'll check tomorrow and get back ..
As always, great help here .. Thanks!