Ih C123 engine Repairs

[DavidBarkey]

All that water and a bad bearing took its toll on the part of the shaft the top bearing rides on .Rest of shaft is ok , some ware you would expect . Tough steel but not hardened . Sooo weld it up , anneal and turn it down when cool .

Forgot to take a pic after welding .

[Harry]

David, curious what electrode you welded the shaft with? One job a had way back was for a fabrication shop that did a lot repairs on mining equipment. The machine shop occasionally needed some shaft buildup before machining. I would ask the machinist what the shaft material was. Most of the time he had no idea. So I would use E7018 and put a heat blanket on it to cool slowly, then he would machine it. I believe you did a terrific repair. Harry

[DavidBarkey]

David, curious what electrode you welded the shaft with? One job a had way back was for a fabrication shop that did a lot repairs on mining equipment. The machine shop occasionally needed some shaft buildup before machining. I would ask the machinist what the shaft material was. Most of the time he had no idea. So I would use E7018 and put a heat blanket on it to cool slowly, then he would machine it. I believe you did a terrific repair. Harry

Thanks Harry . Small area , so I used my flux core mig with standard flux core wire . I think it is E71 something . Then heated it up with torch to red and let air cool . Still tough , but machineable with carbide tool . I am by no means an expert in this area , but know how to lay down a bead and then cut it off to get a new size .
@Harry How does flux core compare to 7018 ?

[Harry]

David, curious what electrode you welded the shaft with? One job a had way back was for a fabrication shop that did a lot repairs on mining equipment. The machine shop occasionally needed some shaft buildup before machining. I would ask the machinist what the shaft material was. Most of the time he had no idea. So I would use E7018 and put a heat blanket on it to cool slowly, then he would machine it. I believe you did a terrific repair. Harry

Thanks Harry . Small area , so I used my flux core mig with standard flux core wire . I think it is E71 something . Then heated it up with torch to red and let air cool . Still tough , but machineable with carbide tool . I am by no means an expert in this area , but know how to lay down a bead and then cut it off to get a new size .
@Harry How does flux core compare to 7018 ?

Same good choice David. Harry

[DavidBarkey]

Thanks Harry .