27-05-2022, 04:07 AM
The crankshaft was tested by heat treatment specialists and found to have lost no strength.
Then, the damaged journal was built up using laser welding. This proved very successful, but cost NZ$660 rather than the NZ$210 quoted due to the crank being nitrided and consequently gas bubbling out as it was being welded.
It has now been reground back to standard as all the queries I made to various supplier indicated the undersize Renault big end shells were not available.
The regrinding of one big end journal cost NZ$253.
It's all looking good!
Then, the damaged journal was built up using laser welding. This proved very successful, but cost NZ$660 rather than the NZ$210 quoted due to the crank being nitrided and consequently gas bubbling out as it was being welded.
It has now been reground back to standard as all the queries I made to various supplier indicated the undersize Renault big end shells were not available.
The regrinding of one big end journal cost NZ$253.
It's all looking good!