What can you tell us about your process for repairing base cracks, Mark? I've reported elsewhere on a very serious one I repaired once in an HRU195 base:
https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=35850#Post35850However that was a structural problem. I still have the mower, and use it every winter because my HR194 is unsatisfactory then due to the wet grass clogging the grass chute. The crack has not shown any signs of movement, but that was a lot of work and the result was unsightly. At present I am biased toward thinking that actual fatigue cracks like that one can only be repaired permanently by welding, or by massive reinforcement combined with anti-propagation tricks, as on my HRU195. Perhaps in a few cases propagation can be delayed by those tricks (drilling holes at the ends of the crack, and at any points along its length where it looks as if it might breed offspring) but those would have to be short cracks in unusual areas, I think.
