Speaking in general terms Welding is a S*it method and should mostly be Avoided in machinery of this type
I have extensive experience with steel on excavators and other places.
It has two problems
The welders skills and the Metallurgical facts.
In steel the welding beats up the welded region metallurgically Grain size and composition of the metal
and introduces more or less stresses because of the melt contracting cooling down
against the other cold regions if not cracks directly.
It is used ( Welding ) ..out on the filed welding ( Stressed parts ) ) it together but in most cases it wont hold any longer time
At which one can choose to weld again.
( On a side note after the war I know or knew of one that at nights scored massive amounts -- very much money -- per night welding and the equivalent of a months pay as piping installer ) weld repairing car engine Blocks that had frozen under the war. Cast iron
He was a Pipe installer and welded with Acetylene gas and his partner was a welding expert that knew of preheating and Cooling down
procedures.
Making it at least a for some time usable engine .They did crack again :But then after the war . People wanted and needed cars and industry was bombed out so one could not buy new ) Reason they did it nights was to keep it secret how they did it :Nowadays there are sticks even for stick welding.
Aluminum then .. ??? I don't know The skill of the welder comes in And I don't know of the Metallurgical on aluminum
But if this was me I would consider finding a replacement block . I did that when my chain Broke .
I have extensive experience with steel on excavators and other places.
It has two problems
The welders skills and the Metallurgical facts.
In steel the welding beats up the welded region metallurgically Grain size and composition of the metal
and introduces more or less stresses because of the melt contracting cooling down
against the other cold regions if not cracks directly.
It is used ( Welding ) ..out on the filed welding ( Stressed parts ) ) it together but in most cases it wont hold any longer time
At which one can choose to weld again.
( On a side note after the war I know or knew of one that at nights scored massive amounts -- very much money -- per night welding and the equivalent of a months pay as piping installer ) weld repairing car engine Blocks that had frozen under the war. Cast iron
He was a Pipe installer and welded with Acetylene gas and his partner was a welding expert that knew of preheating and Cooling down
procedures.
Making it at least a for some time usable engine .They did crack again :But then after the war . People wanted and needed cars and industry was bombed out so one could not buy new ) Reason they did it nights was to keep it secret how they did it :Nowadays there are sticks even for stick welding.
Aluminum then .. ??? I don't know The skill of the welder comes in And I don't know of the Metallurgical on aluminum
But if this was me I would consider finding a replacement block . I did that when my chain Broke .